Multi-physics framework for fast modeling of gamma-ray burst afterglows
Fuente:
arXiv
Guardado en:
| Autores principales: | , , , , |
|---|---|
| Formato: | Preprint |
| Publicado: |
2024
|
| Materias: | |
| Acceso en línea: | |
| Etiquetas: |
Agregar Etiqueta
Sin Etiquetas, Sea el primero en etiquetar este registro!
|
| _version_ | 1866914957000441856 |
|---|---|
| author | Nedora, Vsevolod Menegazzi, Ludovica Crosato Peretti, Enrico Dietrich, Tim Shibata, Masaru |
| author_facet | Nedora, Vsevolod Menegazzi, Ludovica Crosato Peretti, Enrico Dietrich, Tim Shibata, Masaru |
| contents | In this paper, we present PyBlastAfterglow, a modular C++ code with a Python interface to model light curves and sky maps of gamma-ray burst afterglows. The code is open-source, modular, and sufficiently fast to perform parameter grid studies. PyBlastAfterglow is designed to be easily extendable and used as a testing bed for new physics and methods related to gamma-ray burst afterglows. For the dynamical evolution of relativistic ejecta, a thin-shell approximation is adopted, where both forward and reverse shocks are included self-consistently, as well as lateral structure, lateral spreading, and radiation losses. Several models of the shock microphysics are implemented, including a fully numerical model of the downstream electron distribution evolution, synchrotron emission, self-absorption, and synchrotron self-Compton emission under the one-zone approximation. Thus, the code is designed to be able to model complex afterglows that include emission from reverse shock, very high energy emission, structured jets, and off-axis observations. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2409_16852 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Multi-physics framework for fast modeling of gamma-ray burst afterglows Nedora, Vsevolod Menegazzi, Ludovica Crosato Peretti, Enrico Dietrich, Tim Shibata, Masaru High Energy Astrophysical Phenomena In this paper, we present PyBlastAfterglow, a modular C++ code with a Python interface to model light curves and sky maps of gamma-ray burst afterglows. The code is open-source, modular, and sufficiently fast to perform parameter grid studies. PyBlastAfterglow is designed to be easily extendable and used as a testing bed for new physics and methods related to gamma-ray burst afterglows. For the dynamical evolution of relativistic ejecta, a thin-shell approximation is adopted, where both forward and reverse shocks are included self-consistently, as well as lateral structure, lateral spreading, and radiation losses. Several models of the shock microphysics are implemented, including a fully numerical model of the downstream electron distribution evolution, synchrotron emission, self-absorption, and synchrotron self-Compton emission under the one-zone approximation. Thus, the code is designed to be able to model complex afterglows that include emission from reverse shock, very high energy emission, structured jets, and off-axis observations. |
| title | Multi-physics framework for fast modeling of gamma-ray burst afterglows |
| topic | High Energy Astrophysical Phenomena |
| url | https://arxiv.org/abs/2409.16852 |