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How to Run TARDIS with a Custom Packet SourceΒΆ

By default, TARDIS generates energy packets using its interface BasePacketSource class, which has a derived class BlackBodySimpleSource, which models the photosphere of the supernova as a perfect blackbody (see Energy Packet Initialization). However, users may create their own packet source, as will be shown in this notebook. In order to do this, a user must create a class (that inherits from BasePacketSource) and implement the following abstract functions:

  • create_packet_radii (returns array of packet radii)

  • create_packet_nus (returns array of packet frequencies)

  • create_packet_mus (returns array of packet directions)

  • create_packet_energies (returns array of packet energies. See Energy Packet Initialization for more information)

  • create_packets (wrapper which calls the above 4 functions, and is the function used by external code)

  • set_state_from_model (set the state of the source from a model object)

[Note: In this notebook, we have extended the BlackBodySimpleSource class because it already implements some of the above functions]

To use your packet source in a run of TARDIS, you must pass an instance of your class into the run_tardis function under the packet_source keyword argument.

Note

In both the BlackBodySimpleSource class and in the example here, all packets are generated at the same radius. This need not be true in general (though one call of the create_packets method will pick the same radius from the packet source state).

We show an example of how a custom packet source is used:

[1]:

# Import necessary packages
import numpy as np
from tardis import constants as const
from astropy import units as u
from tardis.transport.montecarlo.packet_source import BlackBodySimpleSource
from tardis.transport.montecarlo.packet_collections import (
    PacketCollection,
)
from tardis import run_tardis
import matplotlib.pyplot as plt
from tardis.io.atom_data import download_atom_data

[2]:

# Download the atomic data used for a run of TARDIS
download_atom_data("kurucz_cd23_chianti_H_He")

Atomic Data kurucz_cd23_chianti_H_He already exists in /home/runner/Downloads/tardis-data/kurucz_cd23_chianti_H_He.h5. Will not download - override with force_download=True.

[3]:

# Create a packet source class that contains a create_packets method
class TruncBlackbodySource(BlackBodySimpleSource):
    """
    Custom inner boundary source class to replace the Blackbody source
    with a truncated Blackbody source.

    Parameters
    ----------
    truncation_wavelength : float
        truncation wavelength in Angstrom.
        Only wavelengths higher than the truncation wavelength
        will be sampled.
    radius : float64
        Initial packet radius
    temperature : float
        Absolute Temperature.
    base_seed : int
        Base Seed for random number generator
    """

    def __init__(self, truncation_wavelength=None, **kwargs):
        self.truncation_wavelength = truncation_wavelength
        super().__init__(**kwargs)

    def create_packets(self, no_of_packets, drawing_sample_size=None, seed_offset=0, *args, **kwargs):
        """
        Packet source that generates a truncated Blackbody source.

        Parameters
        ----------
        no_of_packets : int
            number of packets to be created

        Returns
        -------
        array
            Packet radii
        array
            Packet frequencies
        array
            Packet directions
        array
            Packet energies
        """

        self._reseed(self.base_seed + seed_offset)
        packet_seeds = self.rng.choice(
            self.MAX_SEED_VAL, no_of_packets, replace=True
        )

        # Makes uniform array of packet radii from blackbody source
        radii = self.create_packet_radii(no_of_packets, *args, **kwargs)

        # Use mus and energies from normal blackbody source.
        mus = self.create_packet_mus(no_of_packets, *args, **kwargs)
        energies = self.create_packet_energies(no_of_packets, *args, **kwargs)

        # If not specified, draw 2 times as many packets and reject any beyond no_of_packets.
        if drawing_sample_size is None:
            drawing_sample_size = 2 * no_of_packets

        # Blackbody will be truncated below truncation_wavelength / above truncation_frequency.
        truncation_frequency = (
            u.Quantity(self.truncation_wavelength, u.Angstrom)
            .to(u.Hz, equivalencies=u.spectral())
        )

        # Draw nus from blackbody distribution and reject based on truncation_frequency.
        # If more nus.shape[0] > no_of_packets use only the first no_of_packets.
        nus = self.create_packet_nus(drawing_sample_size, *args, **kwargs)
        nus = nus[nus < truncation_frequency][:no_of_packets]

        # Only required if the truncation wavelength is too big compared to the maximum
        # of the blackbody distribution. Keep sampling until nus.shape[0] > no_of_packets.
        while nus.shape[0] < no_of_packets:
            additional_nus = self.create_packet_nus(drawing_sample_size, *args, **kwargs)
            mask = additional_nus < truncation_frequency
            additional_nus = additional_nus[mask][:no_of_packets]
            nus = np.hstack([nus, additional_nus])[:no_of_packets]

        radiation_field_luminosity = (
            self.calculate_radfield_luminosity().to(u.erg / u.s).value
        )

        return PacketCollection(radii, nus, mus, energies, packet_seeds, radiation_field_luminosity)

[4]:

# Call an instance of the packet source class
packet_source = TruncBlackbodySource(
    truncation_wavelength=2000, base_seed=53253
)

We now run TARDIS both with and without our custom packet source, and we compare the results:

[5]:

mdl = run_tardis("tardis_example.yml", packet_source=packet_source)
mdl_norm = run_tardis("tardis_example.yml")

[tardis.io.model.parse_atom_data][INFO   ]

        Reading Atomic Data from kurucz_cd23_chianti_H_He.h5 (parse_atom_data.py:40)
[tardis.io.atom_data.util][INFO   ]

        Atom Data kurucz_cd23_chianti_H_He.h5 not found in local path.
        Exists in TARDIS Data repo /home/runner/Downloads/tardis-data/kurucz_cd23_chianti_H_He.h5 (util.py:36)
[tardis.io.atom_data.base][INFO   ]
        Reading Atom Data with: UUID = 6f7b09e887a311e7a06b246e96350010 MD5  = 864f1753714343c41f99cb065710cace  (base.py:258)
[tardis.io.atom_data.base][INFO   ]
        Non provided Atomic Data: synpp_refs, photoionization_data, yg_data, two_photon_data, linelist (base.py:262)
[tardis.io.model.parse_density_configuration][WARNING]
        Number of density points larger than number of shells. Assuming inner point irrelevant (parse_density_configuration.py:114)
[tardis.model.matter.decay][INFO   ]
        Decaying abundances for 1123200.0 seconds (decay.py:101)
[tardis.simulation.base][INFO   ]

        Starting iteration 1 of 20 (base.py:450)
[py.warnings         ][WARNING]
        /home/runner/work/tardis/tardis/tardis/transport/montecarlo/montecarlo_main_loop.py:123: NumbaTypeSafetyWarning: unsafe cast from uint64 to int64. Precision may be lost.
  vpacket_collection = vpacket_collections[i]
 (warnings.py:112)

[tardis.simulation.base][INFO   ]

        Luminosity emitted   = 8.030e+42 erg / s
        Luminosity absorbed  = 2.580e+42 erg / s
        Luminosity requested = 1.059e+43 erg / s
 (base.py:663)
[tardis.simulation.base][INFO   ]

        Plasma stratification: (base.py:631)
Shell No. t_rad next_t_rad w next_w
0 9.93e+03 K 9.39e+03 K 0.4 0.684
5 9.85e+03 K 9.72e+03 K 0.211 0.243
10 9.78e+03 K 9.63e+03 K 0.143 0.145
15 9.71e+03 K 9.31e+03 K 0.105 0.11 
[tardis.simulation.base][INFO   ]

        Current t_inner = 9933.952 K
        Expected t_inner for next iteration = 10671.887 K
 (base.py:658)
[tardis.simulation.base][INFO   ]

        Starting iteration 2 of 20 (base.py:450)
[tardis.simulation.base][INFO   ]

        Luminosity emitted   = 1.062e+43 erg / s
        Luminosity absorbed  = 3.501e+42 erg / s
        Luminosity requested = 1.059e+43 erg / s
 (base.py:663)
[tardis.simulation.base][INFO   ]

        Plasma stratification: (base.py:631)
Shell No. t_rad next_t_rad w next_w
0 9.39e+03 K 9.62e+03 K 0.684 0.837
5 9.72e+03 K 9.88e+03 K 0.243 0.301
10 9.63e+03 K 9.81e+03 K 0.145 0.179
15 9.31e+03 K 9.66e+03 K 0.11 0.127 
[tardis.simulation.base][INFO   ]

        Current t_inner = 10671.887 K
        Expected t_inner for next iteration = 10664.263 K
 (base.py:658)
[tardis.simulation.base][INFO   ]

        Starting iteration 3 of 20 (base.py:450)
[tardis.simulation.base][INFO   ]

        Luminosity emitted   = 1.065e+43 erg / s
        Luminosity absorbed  = 3.440e+42 erg / s
        Luminosity requested = 1.059e+43 erg / s
 (base.py:663)
[tardis.simulation.base][INFO   ]
        Iteration converged 1/4 consecutive times. (base.py:262)
[tardis.simulation.base][INFO   ]

        Plasma stratification: (base.py:631)
Shell No. t_rad next_t_rad w next_w
0 9.62e+03 K 9.64e+03 K 0.837 0.818
5 9.88e+03 K 9.88e+03 K 0.301 0.303
10 9.81e+03 K 9.8e+03 K 0.179 0.179
15 9.66e+03 K 9.64e+03 K 0.127 0.128 
[tardis.simulation.base][INFO   ]

        Current t_inner = 10664.263 K
        Expected t_inner for next iteration = 10650.425 K
 (base.py:658)
[tardis.simulation.base][INFO   ]

        Starting iteration 4 of 20 (base.py:450)
[tardis.simulation.base][INFO   ]

        Luminosity emitted   = 1.058e+43 erg / s
        Luminosity absorbed  = 3.429e+42 erg / s
        Luminosity requested = 1.059e+43 erg / s
 (base.py:663)
[tardis.simulation.base][INFO   ]
        Iteration converged 2/4 consecutive times. (base.py:262)
[tardis.simulation.base][INFO   ]

        Plasma stratification: (base.py:631)
Shell No. t_rad next_t_rad w next_w
0 9.64e+03 K 9.64e+03 K 0.818 0.817
5 9.88e+03 K 9.9e+03 K 0.303 0.3
10 9.8e+03 K 9.82e+03 K 0.179 0.177
15 9.64e+03 K 9.63e+03 K 0.128 0.129 
[tardis.simulation.base][INFO   ]

        Current t_inner = 10650.425 K
        Expected t_inner for next iteration = 10652.695 K
 (base.py:658)
[tardis.simulation.base][INFO   ]

        Starting iteration 5 of 20 (base.py:450)
[tardis.simulation.base][INFO   ]

        Luminosity emitted   = 1.060e+43 erg / s
        Luminosity absorbed  = 3.425e+42 erg / s
        Luminosity requested = 1.059e+43 erg / s
 (base.py:663)
[tardis.simulation.base][INFO   ]
        Iteration converged 3/4 consecutive times. (base.py:262)
[tardis.simulation.base][INFO   ]

        Plasma stratification: (base.py:631)
Shell No. t_rad next_t_rad w next_w
0 9.64e+03 K 9.66e+03 K 0.817 0.811
5 9.9e+03 K 9.98e+03 K 0.3 0.29
10 9.82e+03 K 9.91e+03 K 0.177 0.172
15 9.63e+03 K 9.66e+03 K 0.129 0.126 
[tardis.simulation.base][INFO   ]

        Current t_inner = 10652.695 K
        Expected t_inner for next iteration = 10650.719 K
 (base.py:658)
[tardis.simulation.base][INFO   ]

        Starting iteration 6 of 20 (base.py:450)
[tardis.simulation.base][INFO   ]

        Luminosity emitted   = 1.055e+43 erg / s
        Luminosity absorbed  = 3.464e+42 erg / s
        Luminosity requested = 1.059e+43 erg / s
 (base.py:663)
[tardis.simulation.base][INFO   ]
        Iteration converged 4/4 consecutive times. (base.py:262)
[tardis.simulation.base][INFO   ]

        Plasma stratification: (base.py:631)
Shell No. t_rad next_t_rad w next_w
0 9.66e+03 K 9.67e+03 K 0.811 0.807
5 9.98e+03 K 9.97e+03 K 0.29 0.288
10 9.91e+03 K 9.85e+03 K 0.172 0.174
15 9.66e+03 K 9.68e+03 K 0.126 0.125 
[tardis.simulation.base][INFO   ]

        Current t_inner = 10650.719 K
        Expected t_inner for next iteration = 10661.147 K
 (base.py:658)
[tardis.simulation.base][INFO   ]

        Starting iteration 7 of 20 (base.py:450)
[tardis.simulation.base][INFO   ]

        Luminosity emitted   = 1.068e+43 erg / s
        Luminosity absorbed  = 3.390e+42 erg / s
        Luminosity requested = 1.059e+43 erg / s
 (base.py:663)
[tardis.simulation.base][INFO   ]
        Iteration converged 5/4 consecutive times. (base.py:262)
[tardis.simulation.base][INFO   ]

        Plasma stratification: (base.py:631)
Shell No. t_rad next_t_rad w next_w
0 9.67e+03 K 9.7e+03 K 0.807 0.796
5 9.97e+03 K 9.9e+03 K 0.288 0.302
10 9.85e+03 K 9.84e+03 K 0.174 0.177
15 9.68e+03 K 9.66e+03 K 0.125 0.128 
[tardis.simulation.base][INFO   ]

        Current t_inner = 10661.147 K
        Expected t_inner for next iteration = 10638.527 K
 (base.py:658)
[tardis.simulation.base][INFO   ]

        Starting iteration 8 of 20 (base.py:450)
[tardis.simulation.base][INFO   ]

        Luminosity emitted   = 1.055e+43 erg / s
        Luminosity absorbed  = 3.406e+42 erg / s
        Luminosity requested = 1.059e+43 erg / s
 (base.py:663)
[tardis.simulation.base][INFO   ]
        Iteration converged 6/4 consecutive times. (base.py:262)
[tardis.simulation.base][INFO   ]

        Plasma stratification: (base.py:631)
Shell No. t_rad next_t_rad w next_w
0 9.7e+03 K 9.68e+03 K 0.796 0.803
5 9.9e+03 K 1e+04 K 0.302 0.286
10 9.84e+03 K 9.94e+03 K 0.177 0.17
15 9.66e+03 K 9.66e+03 K 0.128 0.125 
[tardis.simulation.base][INFO   ]

        Current t_inner = 10638.527 K
        Expected t_inner for next iteration = 10650.528 K
 (base.py:658)
[tardis.simulation.base][INFO   ]

        Starting iteration 9 of 20 (base.py:450)
[tardis.simulation.base][INFO   ]

        Luminosity emitted   = 1.061e+43 erg / s
        Luminosity absorbed  = 3.404e+42 erg / s
        Luminosity requested = 1.059e+43 erg / s
 (base.py:663)
[tardis.simulation.base][INFO   ]
        Iteration converged 7/4 consecutive times. (base.py:262)
[tardis.simulation.base][INFO   ]

        Plasma stratification: (base.py:631)
Shell No. t_rad next_t_rad w next_w
0 9.68e+03 K 9.64e+03 K 0.803 0.815
5 1e+04 K 9.92e+03 K 0.286 0.296
10 9.94e+03 K 9.83e+03 K 0.17 0.178
15 9.66e+03 K 9.65e+03 K 0.125 0.128 
[tardis.simulation.base][INFO   ]

        Current t_inner = 10650.528 K
        Expected t_inner for next iteration = 10646.046 K
 (base.py:658)
[tardis.simulation.base][INFO   ]

        Starting iteration 10 of 20 (base.py:450)
[tardis.simulation.base][INFO   ]

        Luminosity emitted   = 1.054e+43 erg / s
        Luminosity absorbed  = 3.447e+42 erg / s
        Luminosity requested = 1.059e+43 erg / s
 (base.py:663)
[tardis.simulation.base][INFO   ]
        Iteration converged 8/4 consecutive times. (base.py:262)
[tardis.simulation.base][INFO   ]

        Plasma stratification: (base.py:631)
Shell No. t_rad next_t_rad w next_w
0 9.64e+03 K 9.67e+03 K 0.815 0.811
5 9.92e+03 K 9.96e+03 K 0.296 0.288
10 9.83e+03 K 9.95e+03 K 0.178 0.168
15 9.65e+03 K 9.65e+03 K 0.128 0.126 
[tardis.simulation.base][INFO   ]

        Current t_inner = 10646.046 K
        Expected t_inner for next iteration = 10658.702 K
 (base.py:658)
[tardis.simulation.base][INFO   ]

        Starting iteration 11 of 20 (base.py:450)
[tardis.simulation.base][INFO   ]

        Luminosity emitted   = 1.061e+43 erg / s
        Luminosity absorbed  = 3.449e+42 erg / s
        Luminosity requested = 1.059e+43 erg / s
 (base.py:663)
[tardis.simulation.base][INFO   ]
        Iteration converged 9/4 consecutive times. (base.py:262)
[tardis.simulation.base][INFO   ]

        Plasma stratification: (base.py:631)
Shell No. t_rad next_t_rad w next_w
0 9.67e+03 K 9.65e+03 K 0.811 0.812
5 9.96e+03 K 9.95e+03 K 0.288 0.29
10 9.95e+03 K 9.85e+03 K 0.168 0.175
15 9.65e+03 K 9.65e+03 K 0.126 0.127 
[tardis.simulation.base][INFO   ]

        Current t_inner = 10658.702 K
        Expected t_inner for next iteration = 10654.370 K
 (base.py:658)
[tardis.simulation.base][INFO   ]

        Starting iteration 12 of 20 (base.py:450)
[tardis.simulation.base][INFO   ]

        Luminosity emitted   = 1.059e+43 erg / s
        Luminosity absorbed  = 3.442e+42 erg / s
        Luminosity requested = 1.059e+43 erg / s
 (base.py:663)
[tardis.simulation.base][INFO   ]
        Iteration converged 10/4 consecutive times. (base.py:262)
[tardis.simulation.base][INFO   ]

        Plasma stratification: (base.py:631)
Shell No. t_rad next_t_rad w next_w
0 9.65e+03 K 9.65e+03 K 0.812 0.815
5 9.95e+03 K 9.96e+03 K 0.29 0.292
10 9.85e+03 K 9.89e+03 K 0.175 0.174
15 9.65e+03 K 9.6e+03 K 0.127 0.13 
[tardis.simulation.base][INFO   ]

        Current t_inner = 10654.370 K
        Expected t_inner for next iteration = 10654.749 K
 (base.py:658)
[tardis.simulation.base][INFO   ]

        Starting iteration 13 of 20 (base.py:450)
[tardis.simulation.base][INFO   ]

        Luminosity emitted   = 1.058e+43 erg / s
        Luminosity absorbed  = 3.461e+42 erg / s
        Luminosity requested = 1.059e+43 erg / s
 (base.py:663)
[tardis.simulation.base][INFO   ]
        Iteration converged 11/4 consecutive times. (base.py:262)
[tardis.simulation.base][INFO   ]

        Plasma stratification: (base.py:631)
Shell No. t_rad next_t_rad w next_w
0 9.65e+03 K 9.67e+03 K 0.815 0.805
5 9.96e+03 K 9.92e+03 K 0.292 0.293
10 9.89e+03 K 9.9e+03 K 0.174 0.172
15 9.6e+03 K 9.64e+03 K 0.13 0.127 
[tardis.simulation.base][INFO   ]

        Current t_inner = 10654.749 K
        Expected t_inner for next iteration = 10659.019 K
 (base.py:658)
[tardis.simulation.base][INFO   ]

        Starting iteration 14 of 20 (base.py:450)
[tardis.simulation.base][INFO   ]

        Luminosity emitted   = 1.068e+43 erg / s
        Luminosity absorbed  = 3.386e+42 erg / s
        Luminosity requested = 1.059e+43 erg / s
 (base.py:663)
[tardis.simulation.base][INFO   ]
        Iteration converged 12/4 consecutive times. (base.py:262)
[tardis.simulation.base][INFO   ]

        Plasma stratification: (base.py:631)
Shell No. t_rad next_t_rad w next_w
0 9.67e+03 K 9.69e+03 K 0.805 0.798
5 9.92e+03 K 1e+04 K 0.293 0.293
10 9.9e+03 K 9.91e+03 K 0.172 0.174
15 9.64e+03 K 9.6e+03 K 0.127 0.13 
[tardis.simulation.base][INFO   ]

        Current t_inner = 10659.019 K
        Expected t_inner for next iteration = 10638.289 K
 (base.py:658)
[tardis.simulation.base][INFO   ]

        Starting iteration 15 of 20 (base.py:450)
[tardis.simulation.base][INFO   ]

        Luminosity emitted   = 1.053e+43 erg / s
        Luminosity absorbed  = 3.417e+42 erg / s
        Luminosity requested = 1.059e+43 erg / s
 (base.py:663)
[tardis.simulation.base][INFO   ]
        Iteration converged 13/4 consecutive times. (base.py:262)
[tardis.simulation.base][INFO   ]

        Plasma stratification: (base.py:631)
Shell No. t_rad next_t_rad w next_w
0 9.69e+03 K 9.63e+03 K 0.798 0.816
5 1e+04 K 9.88e+03 K 0.293 0.299
10 9.91e+03 K 9.82e+03 K 0.174 0.176
15 9.6e+03 K 9.62e+03 K 0.13 0.128 
[tardis.simulation.base][INFO   ]

        Current t_inner = 10638.289 K
        Expected t_inner for next iteration = 10653.183 K
 (base.py:658)
[tardis.simulation.base][INFO   ]

        Starting iteration 16 of 20 (base.py:450)
[tardis.simulation.base][INFO   ]

        Luminosity emitted   = 1.057e+43 erg / s
        Luminosity absorbed  = 3.458e+42 erg / s
        Luminosity requested = 1.059e+43 erg / s
 (base.py:663)
[tardis.simulation.base][INFO   ]
        Iteration converged 14/4 consecutive times. (base.py:262)
[tardis.simulation.base][INFO   ]

        Plasma stratification: (base.py:631)
Shell No. t_rad next_t_rad w next_w
0 9.63e+03 K 9.68e+03 K 0.816 0.808
5 9.88e+03 K 9.96e+03 K 0.299 0.29
10 9.82e+03 K 9.84e+03 K 0.176 0.176
15 9.62e+03 K 9.64e+03 K 0.128 0.127 
[tardis.simulation.base][INFO   ]

        Current t_inner = 10653.183 K
        Expected t_inner for next iteration = 10658.530 K
 (base.py:658)
[tardis.simulation.base][INFO   ]

        Starting iteration 17 of 20 (base.py:450)
[tardis.simulation.base][INFO   ]

        Luminosity emitted   = 1.059e+43 erg / s
        Luminosity absorbed  = 3.465e+42 erg / s
        Luminosity requested = 1.059e+43 erg / s
 (base.py:663)
[tardis.simulation.base][INFO   ]
        Iteration converged 15/4 consecutive times. (base.py:262)
[tardis.simulation.base][INFO   ]

        Plasma stratification: (base.py:631)
Shell No. t_rad next_t_rad w next_w
0 9.68e+03 K 9.68e+03 K 0.808 0.804
5 9.96e+03 K 1e+04 K 0.29 0.286
10 9.84e+03 K 9.95e+03 K 0.176 0.167
15 9.64e+03 K 9.7e+03 K 0.127 0.124 
[tardis.simulation.base][INFO   ]

        Current t_inner = 10658.530 K
        Expected t_inner for next iteration = 10658.730 K
 (base.py:658)
[tardis.simulation.base][INFO   ]

        Starting iteration 18 of 20 (base.py:450)
[tardis.simulation.base][INFO   ]

        Luminosity emitted   = 1.064e+43 erg / s
        Luminosity absorbed  = 3.425e+42 erg / s
        Luminosity requested = 1.059e+43 erg / s
 (base.py:663)
[tardis.simulation.base][INFO   ]
        Iteration converged 16/4 consecutive times. (base.py:262)
[tardis.simulation.base][INFO   ]

        Plasma stratification: (base.py:631)
Shell No. t_rad next_t_rad w next_w
0 9.68e+03 K 9.64e+03 K 0.804 0.809
5 1e+04 K 9.92e+03 K 0.286 0.294
10 9.95e+03 K 9.88e+03 K 0.167 0.174
15 9.7e+03 K 9.65e+03 K 0.124 0.127 
[tardis.simulation.base][INFO   ]

        Current t_inner = 10658.730 K
        Expected t_inner for next iteration = 10647.215 K
 (base.py:658)
[tardis.simulation.base][INFO   ]

        Starting iteration 19 of 20 (base.py:450)
[tardis.simulation.base][INFO   ]

        Luminosity emitted   = 1.057e+43 erg / s
        Luminosity absorbed  = 3.430e+42 erg / s
        Luminosity requested = 1.059e+43 erg / s
 (base.py:663)
[tardis.simulation.base][INFO   ]
        Iteration converged 17/4 consecutive times. (base.py:262)
[tardis.simulation.base][INFO   ]

        Plasma stratification: (base.py:631)
Shell No. t_rad next_t_rad w next_w
0 9.64e+03 K 9.72e+03 K 0.809 0.787
5 9.92e+03 K 9.97e+03 K 0.294 0.292
10 9.88e+03 K 9.92e+03 K 0.174 0.17
15 9.65e+03 K 9.67e+03 K 0.127 0.126 
[tardis.simulation.base][INFO   ]

        Current t_inner = 10647.215 K
        Expected t_inner for next iteration = 10654.133 K
 (base.py:658)
[tardis.simulation.base][INFO   ]

        Simulation finished in 19 iterations
        Simulation took 81.99 s
 (base.py:548)
[tardis.simulation.base][INFO   ]

        Starting iteration 20 of 20 (base.py:450)
[tardis.simulation.base][INFO   ]

        Luminosity emitted   = 1.061e+43 erg / s
        Luminosity absorbed  = 3.424e+42 erg / s
        Luminosity requested = 1.059e+43 erg / s
 (base.py:663)
[tardis.io.model.parse_atom_data][INFO   ]

        Reading Atomic Data from kurucz_cd23_chianti_H_He.h5 (parse_atom_data.py:40)
[tardis.io.atom_data.util][INFO   ]

        Atom Data kurucz_cd23_chianti_H_He.h5 not found in local path.
        Exists in TARDIS Data repo /home/runner/Downloads/tardis-data/kurucz_cd23_chianti_H_He.h5 (util.py:36)
[tardis.io.atom_data.base][INFO   ]
        Reading Atom Data with: UUID = 6f7b09e887a311e7a06b246e96350010 MD5  = 864f1753714343c41f99cb065710cace  (base.py:258)
[tardis.io.atom_data.base][INFO   ]
        Non provided Atomic Data: synpp_refs, photoionization_data, yg_data, two_photon_data, linelist (base.py:262)
[tardis.io.model.parse_density_configuration][WARNING]
        Number of density points larger than number of shells. Assuming inner point irrelevant (parse_density_configuration.py:114)
[tardis.model.matter.decay][INFO   ]
        Decaying abundances for 1123200.0 seconds (decay.py:101)
[tardis.simulation.base][INFO   ]

        Starting iteration 1 of 20 (base.py:450)

[tardis.simulation.base][INFO   ]

        Luminosity emitted   = 7.942e+42 erg / s
        Luminosity absorbed  = 2.659e+42 erg / s
        Luminosity requested = 1.059e+43 erg / s
 (base.py:663)
[tardis.simulation.base][INFO   ]

        Plasma stratification: (base.py:631)
Shell No. t_rad next_t_rad w next_w
0 9.93e+03 K 1.01e+04 K 0.4 0.507
5 9.85e+03 K 1.02e+04 K 0.211 0.197
10 9.78e+03 K 1.01e+04 K 0.143 0.117
15 9.71e+03 K 9.87e+03 K 0.105 0.0869 
[tardis.simulation.base][INFO   ]

        Current t_inner = 9933.952 K
        Expected t_inner for next iteration = 10703.212 K
 (base.py:658)
[tardis.simulation.base][INFO   ]

        Starting iteration 2 of 20 (base.py:450)
[tardis.simulation.base][INFO   ]

        Luminosity emitted   = 1.071e+43 erg / s
        Luminosity absorbed  = 3.576e+42 erg / s
        Luminosity requested = 1.059e+43 erg / s
 (base.py:663)
[tardis.simulation.base][INFO   ]

        Plasma stratification: (base.py:631)
Shell No. t_rad next_t_rad w next_w
0 1.01e+04 K 1.08e+04 K 0.507 0.525
5 1.02e+04 K 1.1e+04 K 0.197 0.203
10 1.01e+04 K 1.08e+04 K 0.117 0.125
15 9.87e+03 K 1.05e+04 K 0.0869 0.0933 
[tardis.simulation.base][INFO   ]

        Current t_inner = 10703.212 K
        Expected t_inner for next iteration = 10673.712 K
 (base.py:658)
[tardis.simulation.base][INFO   ]

        Starting iteration 3 of 20 (base.py:450)
[tardis.simulation.base][INFO   ]

        Luminosity emitted   = 1.074e+43 erg / s
        Luminosity absorbed  = 3.391e+42 erg / s
        Luminosity requested = 1.059e+43 erg / s
 (base.py:663)
[tardis.simulation.base][INFO   ]
        Iteration converged 1/4 consecutive times. (base.py:262)
[tardis.simulation.base][INFO   ]

        Plasma stratification: (base.py:631)
Shell No. t_rad next_t_rad w next_w
0 1.08e+04 K 1.1e+04 K 0.525 0.483
5 1.1e+04 K 1.12e+04 K 0.203 0.189
10 1.08e+04 K 1.1e+04 K 0.125 0.118
15 1.05e+04 K 1.06e+04 K 0.0933 0.0895 
[tardis.simulation.base][INFO   ]

        Current t_inner = 10673.712 K
        Expected t_inner for next iteration = 10635.953 K
 (base.py:658)
[tardis.simulation.base][INFO   ]

        Starting iteration 4 of 20 (base.py:450)
[tardis.simulation.base][INFO   ]

        Luminosity emitted   = 1.058e+43 erg / s
        Luminosity absorbed  = 3.352e+42 erg / s
        Luminosity requested = 1.059e+43 erg / s
 (base.py:663)
[tardis.simulation.base][INFO   ]
        Iteration converged 2/4 consecutive times. (base.py:262)
[tardis.simulation.base][INFO   ]

        Plasma stratification: (base.py:631)
Shell No. t_rad next_t_rad w next_w
0 1.1e+04 K 1.1e+04 K 0.483 0.469
5 1.12e+04 K 1.12e+04 K 0.189 0.182
10 1.1e+04 K 1.1e+04 K 0.118 0.113
15 1.06e+04 K 1.07e+04 K 0.0895 0.0861 
[tardis.simulation.base][INFO   ]

        Current t_inner = 10635.953 K
        Expected t_inner for next iteration = 10638.407 K
 (base.py:658)
[tardis.simulation.base][INFO   ]

        Starting iteration 5 of 20 (base.py:450)
[tardis.simulation.base][INFO   ]

        Luminosity emitted   = 1.055e+43 erg / s
        Luminosity absorbed  = 3.399e+42 erg / s
        Luminosity requested = 1.059e+43 erg / s
 (base.py:663)
[tardis.simulation.base][INFO   ]
        Iteration converged 3/4 consecutive times. (base.py:262)
[tardis.simulation.base][INFO   ]

        Plasma stratification: (base.py:631)
Shell No. t_rad next_t_rad w next_w
0 1.1e+04 K 1.1e+04 K 0.469 0.479
5 1.12e+04 K 1.13e+04 K 0.182 0.178
10 1.1e+04 K 1.1e+04 K 0.113 0.113
15 1.07e+04 K 1.07e+04 K 0.0861 0.0839 
[tardis.simulation.base][INFO   ]

        Current t_inner = 10638.407 K
        Expected t_inner for next iteration = 10650.202 K
 (base.py:658)
[tardis.simulation.base][INFO   ]

        Starting iteration 6 of 20 (base.py:450)
[tardis.simulation.base][INFO   ]

        Luminosity emitted   = 1.061e+43 erg / s
        Luminosity absorbed  = 3.398e+42 erg / s
        Luminosity requested = 1.059e+43 erg / s
 (base.py:663)
[tardis.simulation.base][INFO   ]
        Iteration converged 4/4 consecutive times. (base.py:262)
[tardis.simulation.base][INFO   ]

        Plasma stratification: (base.py:631)
Shell No. t_rad next_t_rad w next_w
0 1.1e+04 K 1.1e+04 K 0.479 0.47
5 1.13e+04 K 1.12e+04 K 0.178 0.185
10 1.1e+04 K 1.11e+04 K 0.113 0.112
15 1.07e+04 K 1.07e+04 K 0.0839 0.0856 
[tardis.simulation.base][INFO   ]

        Current t_inner = 10650.202 K
        Expected t_inner for next iteration = 10645.955 K
 (base.py:658)
[tardis.simulation.base][INFO   ]

        Starting iteration 7 of 20 (base.py:450)
[tardis.simulation.base][INFO   ]

        Luminosity emitted   = 1.061e+43 erg / s
        Luminosity absorbed  = 3.382e+42 erg / s
        Luminosity requested = 1.059e+43 erg / s
 (base.py:663)
[tardis.simulation.base][INFO   ]
        Iteration converged 5/4 consecutive times. (base.py:262)
[tardis.simulation.base][INFO   ]

        Plasma stratification: (base.py:631)
Shell No. t_rad next_t_rad w next_w
0 1.1e+04 K 1.1e+04 K 0.47 0.47
5 1.12e+04 K 1.13e+04 K 0.185 0.178
10 1.11e+04 K 1.11e+04 K 0.112 0.112
15 1.07e+04 K 1.07e+04 K 0.0856 0.086 
[tardis.simulation.base][INFO   ]

        Current t_inner = 10645.955 K
        Expected t_inner for next iteration = 10642.050 K
 (base.py:658)
[tardis.simulation.base][INFO   ]

        Starting iteration 8 of 20 (base.py:450)
[tardis.simulation.base][INFO   ]

        Luminosity emitted   = 1.062e+43 erg / s
        Luminosity absorbed  = 3.350e+42 erg / s
        Luminosity requested = 1.059e+43 erg / s
 (base.py:663)
[tardis.simulation.base][INFO   ]
        Iteration converged 6/4 consecutive times. (base.py:262)
[tardis.simulation.base][INFO   ]

        Plasma stratification: (base.py:631)
Shell No. t_rad next_t_rad w next_w
0 1.1e+04 K 1.11e+04 K 0.47 0.472
5 1.13e+04 K 1.14e+04 K 0.178 0.175
10 1.11e+04 K 1.11e+04 K 0.112 0.111
15 1.07e+04 K 1.07e+04 K 0.086 0.084 
[tardis.simulation.base][INFO   ]

        Current t_inner = 10642.050 K
        Expected t_inner for next iteration = 10636.106 K
 (base.py:658)
[tardis.simulation.base][INFO   ]

        Starting iteration 9 of 20 (base.py:450)
[tardis.simulation.base][INFO   ]

        Luminosity emitted   = 1.052e+43 erg / s
        Luminosity absorbed  = 3.411e+42 erg / s
        Luminosity requested = 1.059e+43 erg / s
 (base.py:663)
[tardis.simulation.base][INFO   ]
        Iteration converged 7/4 consecutive times. (base.py:262)
[tardis.simulation.base][INFO   ]

        Plasma stratification: (base.py:631)
Shell No. t_rad next_t_rad w next_w
0 1.11e+04 K 1.11e+04 K 0.472 0.469
5 1.14e+04 K 1.15e+04 K 0.175 0.17
10 1.11e+04 K 1.11e+04 K 0.111 0.109
15 1.07e+04 K 1.08e+04 K 0.084 0.0822 
[tardis.simulation.base][INFO   ]

        Current t_inner = 10636.106 K
        Expected t_inner for next iteration = 10654.313 K
 (base.py:658)
[tardis.simulation.base][INFO   ]

        Starting iteration 10 of 20 (base.py:450)
[tardis.simulation.base][INFO   ]

        Luminosity emitted   = 1.070e+43 erg / s
        Luminosity absorbed  = 3.335e+42 erg / s
        Luminosity requested = 1.059e+43 erg / s
 (base.py:663)
[tardis.simulation.base][INFO   ]
        Iteration converged 8/4 consecutive times. (base.py:262)
[tardis.simulation.base][INFO   ]

        Plasma stratification: (base.py:631)
Shell No. t_rad next_t_rad w next_w
0 1.11e+04 K 1.1e+04 K 0.469 0.475
5 1.15e+04 K 1.14e+04 K 0.17 0.177
10 1.11e+04 K 1.11e+04 K 0.109 0.112
15 1.08e+04 K 1.06e+04 K 0.0822 0.0878 
[tardis.simulation.base][INFO   ]

        Current t_inner = 10654.313 K
        Expected t_inner for next iteration = 10628.190 K
 (base.py:658)
[tardis.simulation.base][INFO   ]

        Starting iteration 11 of 20 (base.py:450)
[tardis.simulation.base][INFO   ]

        Luminosity emitted   = 1.053e+43 erg / s
        Luminosity absorbed  = 3.363e+42 erg / s
        Luminosity requested = 1.059e+43 erg / s
 (base.py:663)
[tardis.simulation.base][INFO   ]
        Iteration converged 9/4 consecutive times. (base.py:262)
[tardis.simulation.base][INFO   ]

        Plasma stratification: (base.py:631)
Shell No. t_rad next_t_rad w next_w
0 1.1e+04 K 1.1e+04 K 0.475 0.472
5 1.14e+04 K 1.12e+04 K 0.177 0.184
10 1.11e+04 K 1.1e+04 K 0.112 0.114
15 1.06e+04 K 1.06e+04 K 0.0878 0.0859 
[tardis.simulation.base][INFO   ]

        Current t_inner = 10628.190 K
        Expected t_inner for next iteration = 10644.054 K
 (base.py:658)
[tardis.simulation.base][INFO   ]

        Starting iteration 12 of 20 (base.py:450)
[tardis.simulation.base][INFO   ]

        Luminosity emitted   = 1.056e+43 erg / s
        Luminosity absorbed  = 3.420e+42 erg / s
        Luminosity requested = 1.059e+43 erg / s
 (base.py:663)
[tardis.simulation.base][INFO   ]
        Iteration converged 10/4 consecutive times. (base.py:262)
[tardis.simulation.base][INFO   ]

        Plasma stratification: (base.py:631)
Shell No. t_rad next_t_rad w next_w
0 1.1e+04 K 1.11e+04 K 0.472 0.467
5 1.12e+04 K 1.13e+04 K 0.184 0.176
10 1.1e+04 K 1.11e+04 K 0.114 0.11
15 1.06e+04 K 1.08e+04 K 0.0859 0.0821 
[tardis.simulation.base][INFO   ]

        Current t_inner = 10644.054 K
        Expected t_inner for next iteration = 10653.543 K
 (base.py:658)
[tardis.simulation.base][INFO   ]

        Starting iteration 13 of 20 (base.py:450)
[tardis.simulation.base][INFO   ]

        Luminosity emitted   = 1.062e+43 erg / s
        Luminosity absorbed  = 3.406e+42 erg / s
        Luminosity requested = 1.059e+43 erg / s
 (base.py:663)
[tardis.simulation.base][INFO   ]
        Iteration converged 11/4 consecutive times. (base.py:262)
[tardis.simulation.base][INFO   ]

        Plasma stratification: (base.py:631)
Shell No. t_rad next_t_rad w next_w
0 1.11e+04 K 1.11e+04 K 0.467 0.466
5 1.13e+04 K 1.13e+04 K 0.176 0.18
10 1.11e+04 K 1.11e+04 K 0.11 0.111
15 1.08e+04 K 1.08e+04 K 0.0821 0.0841 
[tardis.simulation.base][INFO   ]

        Current t_inner = 10653.543 K
        Expected t_inner for next iteration = 10647.277 K
 (base.py:658)
[tardis.simulation.base][INFO   ]

        Starting iteration 14 of 20 (base.py:450)
[tardis.simulation.base][INFO   ]

        Luminosity emitted   = 1.063e+43 erg / s
        Luminosity absorbed  = 3.369e+42 erg / s
        Luminosity requested = 1.059e+43 erg / s
 (base.py:663)
[tardis.simulation.base][INFO   ]
        Iteration converged 12/4 consecutive times. (base.py:262)
[tardis.simulation.base][INFO   ]

        Plasma stratification: (base.py:631)
Shell No. t_rad next_t_rad w next_w
0 1.11e+04 K 1.11e+04 K 0.466 0.469
5 1.13e+04 K 1.13e+04 K 0.18 0.182
10 1.11e+04 K 1.1e+04 K 0.111 0.113
15 1.08e+04 K 1.07e+04 K 0.0841 0.0854 
[tardis.simulation.base][INFO   ]

        Current t_inner = 10647.277 K
        Expected t_inner for next iteration = 10638.875 K
 (base.py:658)
[tardis.simulation.base][INFO   ]

        Starting iteration 15 of 20 (base.py:450)
[tardis.simulation.base][INFO   ]

        Luminosity emitted   = 1.053e+43 erg / s
        Luminosity absorbed  = 3.417e+42 erg / s
        Luminosity requested = 1.059e+43 erg / s
 (base.py:663)
[tardis.simulation.base][INFO   ]
        Iteration converged 13/4 consecutive times. (base.py:262)
[tardis.simulation.base][INFO   ]

        Plasma stratification: (base.py:631)
Shell No. t_rad next_t_rad w next_w
0 1.11e+04 K 1.1e+04 K 0.469 0.484
5 1.13e+04 K 1.13e+04 K 0.182 0.181
10 1.1e+04 K 1.1e+04 K 0.113 0.113
15 1.07e+04 K 1.07e+04 K 0.0854 0.0858 
[tardis.simulation.base][INFO   ]

        Current t_inner = 10638.875 K
        Expected t_inner for next iteration = 10655.125 K
 (base.py:658)
[tardis.simulation.base][INFO   ]

        Starting iteration 16 of 20 (base.py:450)
[tardis.simulation.base][INFO   ]

        Luminosity emitted   = 1.059e+43 erg / s
        Luminosity absorbed  = 3.445e+42 erg / s
        Luminosity requested = 1.059e+43 erg / s
 (base.py:663)
[tardis.simulation.base][INFO   ]
        Iteration converged 14/4 consecutive times. (base.py:262)
[tardis.simulation.base][INFO   ]

        Plasma stratification: (base.py:631)
Shell No. t_rad next_t_rad w next_w
0 1.1e+04 K 1.1e+04 K 0.484 0.472
5 1.13e+04 K 1.13e+04 K 0.181 0.177
10 1.1e+04 K 1.1e+04 K 0.113 0.113
15 1.07e+04 K 1.06e+04 K 0.0858 0.0858 
[tardis.simulation.base][INFO   ]

        Current t_inner = 10655.125 K
        Expected t_inner for next iteration = 10655.561 K
 (base.py:658)
[tardis.simulation.base][INFO   ]

        Starting iteration 17 of 20 (base.py:450)
[tardis.simulation.base][INFO   ]

        Luminosity emitted   = 1.067e+43 erg / s
        Luminosity absorbed  = 3.372e+42 erg / s
        Luminosity requested = 1.059e+43 erg / s
 (base.py:663)
[tardis.simulation.base][INFO   ]
        Iteration converged 15/4 consecutive times. (base.py:262)
[tardis.simulation.base][INFO   ]

        Plasma stratification: (base.py:631)
Shell No. t_rad next_t_rad w next_w
0 1.1e+04 K 1.11e+04 K 0.472 0.468
5 1.13e+04 K 1.14e+04 K 0.177 0.175
10 1.1e+04 K 1.11e+04 K 0.113 0.11
15 1.06e+04 K 1.08e+04 K 0.0858 0.0816 
[tardis.simulation.base][INFO   ]

        Current t_inner = 10655.561 K
        Expected t_inner for next iteration = 10636.536 K
 (base.py:658)
[tardis.simulation.base][INFO   ]

        Starting iteration 18 of 20 (base.py:450)
[tardis.simulation.base][INFO   ]

        Luminosity emitted   = 1.057e+43 erg / s
        Luminosity absorbed  = 3.365e+42 erg / s
        Luminosity requested = 1.059e+43 erg / s
 (base.py:663)
[tardis.simulation.base][INFO   ]
        Iteration converged 16/4 consecutive times. (base.py:262)
[tardis.simulation.base][INFO   ]

        Plasma stratification: (base.py:631)
Shell No. t_rad next_t_rad w next_w
0 1.11e+04 K 1.11e+04 K 0.468 0.464
5 1.14e+04 K 1.13e+04 K 0.175 0.177
10 1.11e+04 K 1.1e+04 K 0.11 0.113
15 1.08e+04 K 1.07e+04 K 0.0816 0.0848 
[tardis.simulation.base][INFO   ]

        Current t_inner = 10636.536 K
        Expected t_inner for next iteration = 10641.692 K
 (base.py:658)
[tardis.simulation.base][INFO   ]

        Starting iteration 19 of 20 (base.py:450)
[tardis.simulation.base][INFO   ]

        Luminosity emitted   = 1.056e+43 erg / s
        Luminosity absorbed  = 3.405e+42 erg / s
        Luminosity requested = 1.059e+43 erg / s
 (base.py:663)
[tardis.simulation.base][INFO   ]
        Iteration converged 17/4 consecutive times. (base.py:262)
[tardis.simulation.base][INFO   ]

        Plasma stratification: (base.py:631)
Shell No. t_rad next_t_rad w next_w
0 1.11e+04 K 1.11e+04 K 0.464 0.466
5 1.13e+04 K 1.13e+04 K 0.177 0.177
10 1.1e+04 K 1.11e+04 K 0.113 0.111
15 1.07e+04 K 1.07e+04 K 0.0848 0.0853 
[tardis.simulation.base][INFO   ]

        Current t_inner = 10641.692 K
        Expected t_inner for next iteration = 10650.463 K
 (base.py:658)
[tardis.simulation.base][INFO   ]

        Simulation finished in 19 iterations
        Simulation took 12.82 s
 (base.py:548)
[tardis.simulation.base][INFO   ]

        Starting iteration 20 of 20 (base.py:450)
[tardis.simulation.base][INFO   ]

        Luminosity emitted   = 1.061e+43 erg / s
        Luminosity absorbed  = 3.401e+42 erg / s
        Luminosity requested = 1.059e+43 erg / s
 (base.py:663)

[6]:

%matplotlib inline
plt.plot(mdl.spectrum_solver.spectrum_virtual_packets.wavelength,
         mdl.spectrum_solver.spectrum_virtual_packets.luminosity_density_lambda,
         color='red', label='truncated blackbody (custom packet source)')
plt.plot(mdl_norm.spectrum_solver.spectrum_virtual_packets.wavelength,
         mdl_norm.spectrum_solver.spectrum_virtual_packets.luminosity_density_lambda,
         color='blue', label='normal blackbody (default packet source)')
plt.xlabel('$\lambda [\AA]$')
plt.ylabel('$L_\lambda$ [erg/s/$\AA$]')
plt.xlim(500, 10000)
plt.legend()

[py.warnings         ][WARNING]
        <>:8: SyntaxWarning: invalid escape sequence '\l'
 (warnings.py:112)
[py.warnings         ][WARNING]
        <>:9: SyntaxWarning: invalid escape sequence '\l'
 (warnings.py:112)
[py.warnings         ][WARNING]
        <>:8: SyntaxWarning: invalid escape sequence '\l'
 (warnings.py:112)
[py.warnings         ][WARNING]
        <>:9: SyntaxWarning: invalid escape sequence '\l'
 (warnings.py:112)
[py.warnings         ][WARNING]
        /tmp/ipykernel_4598/780799957.py:8: SyntaxWarning: invalid escape sequence '\l'
  plt.xlabel('$\lambda [\AA]$')
 (warnings.py:112)
[py.warnings         ][WARNING]
        /tmp/ipykernel_4598/780799957.py:9: SyntaxWarning: invalid escape sequence '\l'
  plt.ylabel('$L_\lambda$ [erg/s/$\AA$]')
 (warnings.py:112)

[6]:

<matplotlib.legend.Legend at 0x7fd2f42ddb20>
../../_images/io_optional_how_to_custom_source_8_2.svg