The gamma-ray signal from type IIP core-collapse supernovae
| Autor: | Pierre Cristofari, Alexandre Marcowith, Matthieu Renaud, Vikram V. Dwarkadas, V. Tatischeff |
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| Přispěvatelé: | Observatoire de Paris - Site de Meudon (OBSPM), Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS), Laboratoire Univers et Particules de Montpellier (LUPM), Université Montpellier 2 - Sciences et Techniques (UM2)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique des 2 Infinis Irène Joliot-Curie (IJCLab), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS) |
| Rok vydání: | 2021 |
| Předmět: |
Shock wave
Physics Photosphere Cherenkov Telescope Array Photon two-photon: absorption supernova: collapse Astrophysics::High Energy Astrophysical Phenomena photon Gamma ray shock waves Astrophysics::Cosmology and Extragalactic Astrophysics Astrophysics VHE observatory star: massive Supernova Observatory time dependence Astrophysics::Solar and Stellar Astrophysics Red supergiant gamma ray: flux [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph] Astrophysics::Galaxy Astrophysics |
| Zdroj: | PoS 37th International Cosmic Ray Conference 37th International Cosmic Ray Conference, Jul 2021, Berlin, Germany. pp.926, ⟨10.22323/1.395.0926⟩ |
| Popis: | International audience; The shock wave resulting from the core-collapse of a massive star can accelerate particles up to PeV energies in the first few days to weeks after the explosion. This can lead to the production of a potentially detectable gamma-ray signal. The gamma-ray flux however is strongly affected by the two photon-annihilation process, where gamma-ray photons interact with photons from the SN photosphere. This process hampers the detection of gamma-rays from core-collapse supernovae at very high energies. In order to probe the detectability of the gamma-rays with current and upcoming gamma-ray facilities, we estimate the gamma-ray flux from typical type IIP core collapse supernovae (CCSNe). These are the most common type of supernovae, and are presumed to arise from red supergiant progenitors. We include a detailed time-dependent calculation of two-photon absorption. Our results will be very useful in creating a strategic observing program to detect CCSNe with the next generation gamma-ray observatory, such as the Cherenkov Telescope Array (CTA). |
| Databáze: | OpenAIRE |
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