XSNAP: An X-ray Supernova Analysis Pipeline with Application to the Type II Supernova 2024ggi
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arXiv
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| Format: | Preprint |
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2025
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| _version_ | 1866911570967134208 |
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| author | Ferdinand Jacobson-Galán, W. V. Kasliwal, M. M. Zimmerman, Erez A. |
| author_facet | Ferdinand Jacobson-Galán, W. V. Kasliwal, M. M. Zimmerman, Erez A. |
| contents | X-ray observations of Type II supernovae (SNe II) probe the physics of supernova (SN) shocks and the mass-loss histories of their progenitor stars. We present multi-epoch, X-ray observations of SN II 2024ggi ($D \approx 7.2 \ \rm Mpc$) from ${\it Swift}$-XRT, ${\it Chandra}$ and ${\it XMM}$, which cover $\sim 1 - 344$ days since first light. We analyze these observations using a new open-source Python package called $\texttt{XSNAP}$, which standardizes a unified command-line interface for instrument-specific reduction and spectral extraction. $\texttt{XSNAP}$ introduces application programming interfaces for per-epoch spectral modeling through $\texttt{PyXspec}$ and $\texttt{emcee}$ Markov chain Monte Carlo fitting. We employ ${\tt XSNAP}$ to model the multi-epoch X-ray spectra of SN 2024ggi with an absorbed thermal bremsstrahlung model and calculate a steady progenitor mass-loss rate of $(6.2\pm0.2)\times10^{-5}\,M_{\odot}\,\mathrm{yr^{-1}}$ $(v_{\rm wind} = 20 \ \rm km \ s^{-1})$, for which the detected X-ray emission traces the final 117 years before explosion. The software is publicly available on GitHub, with a released package on the Python Package Index (PyPI). |
| format | Preprint |
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arxiv_https___arxiv_org_abs_2511_10744 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | XSNAP: An X-ray Supernova Analysis Pipeline with Application to the Type II Supernova 2024ggi Ferdinand Jacobson-Galán, W. V. Kasliwal, M. M. Zimmerman, Erez A. High Energy Astrophysical Phenomena Instrumentation and Methods for Astrophysics Solar and Stellar Astrophysics X-ray observations of Type II supernovae (SNe II) probe the physics of supernova (SN) shocks and the mass-loss histories of their progenitor stars. We present multi-epoch, X-ray observations of SN II 2024ggi ($D \approx 7.2 \ \rm Mpc$) from ${\it Swift}$-XRT, ${\it Chandra}$ and ${\it XMM}$, which cover $\sim 1 - 344$ days since first light. We analyze these observations using a new open-source Python package called $\texttt{XSNAP}$, which standardizes a unified command-line interface for instrument-specific reduction and spectral extraction. $\texttt{XSNAP}$ introduces application programming interfaces for per-epoch spectral modeling through $\texttt{PyXspec}$ and $\texttt{emcee}$ Markov chain Monte Carlo fitting. We employ ${\tt XSNAP}$ to model the multi-epoch X-ray spectra of SN 2024ggi with an absorbed thermal bremsstrahlung model and calculate a steady progenitor mass-loss rate of $(6.2\pm0.2)\times10^{-5}\,M_{\odot}\,\mathrm{yr^{-1}}$ $(v_{\rm wind} = 20 \ \rm km \ s^{-1})$, for which the detected X-ray emission traces the final 117 years before explosion. The software is publicly available on GitHub, with a released package on the Python Package Index (PyPI). |
| title | XSNAP: An X-ray Supernova Analysis Pipeline with Application to the Type II Supernova 2024ggi |
| topic | High Energy Astrophysical Phenomena Instrumentation and Methods for Astrophysics Solar and Stellar Astrophysics |
| url | https://arxiv.org/abs/2511.10744 |