Code is conditional on the successful installation of Sherpa with access to XSpec models.
XSpec Installation: https://heasarc.gsfc.nasa.gov/xanadu/xspec/
Sherpa Installation: https://sherpa.readthedocs.io/en/latest/install.html
Source install with conda: https://sherpa.readthedocs.io/en/latest/developer/index.html#source-install-with-conda
Refer to Tutorial.ipynb for a detailed guide.
The key features of this code are:
- Provide a Bayesian framework to constrain BH properties from a provided Spectral Energy Distribution (SED) utilising ray-traced models of the multi-temperature thermal accretion disc emission around Kerr BHs.
- Use general extinction curve models to deredden the SED.
- Define custom priors and parameter thresholds to influence the resulting model. Freely fix and vary different parameters.
We thank Marcin Marculewicz, Ashley Hai Tung Tan, and Yanina Lopez Bonilla for testing the installation and raising several issues.
The preferred citations for this code are the following:
@ARTICLE{2023MNRAS.521.3682L,
author = {{Lai (赖民希)}, Samuel and {Wolf}, Christian and {Onken}, Christopher A. and {Bian (边福彦)}, Fuyan},
title = "{Characterising SMSS J2157-3602, the most luminous known quasar, with accretion disc models}",
journal = {\mnras},
keywords = {galaxies: active, galaxies: high-redshift, quasars: emission lines, Astrophysics - Astrophysics of Galaxies},
year = 2023,
month = may,
volume = {521},
number = {3},
pages = {3682-3698},
doi = {10.1093/mnras/stad651},
archivePrefix = {arXiv},
eprint = {2302.10397},
primaryClass = {astro-ph.GA},
adsurl = {https://ui.adsabs.harvard.edu/abs/2023MNRAS.521.3682L },
adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}
@software{samuel_lai_2023_7772748,
author = {Samuel Lai},
title = {samlaihei/BADFit: BADFit v1.0.0},
month = mar,
year = 2023,
publisher = {Zenodo},
version = {v1.0.0},
doi = {10.5281/zenodo.7772748},
url = {https://doi.org/10.5281/zenodo.7772748 }
}