CTA sensitivity for probing cosmology and fundamental physics with gamma rays
| Autor: | Jonathan Biteau, Manuel Meyer, Ievgen Vovk, H. Martínez-Huerta, Santiago Pita |
|---|---|
| Přispěvatelé: | 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), AstroParticule et Cosmologie (APC (UMR_7164)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Université de Paris (UP), CTA Consortium, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité) |
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Active galactic nucleus
Cherenkov Telescope Array Physics beyond the Standard Model Astrophysics::High Energy Astrophysical Phenomena Dark matter FOS: Physical sciences magnetic field Astrophysics Astrophysics::Cosmology and Extragalactic Astrophysics gamma ray: absorption invariance: Lorentz Cosmology dark matter: halo Observatory cosmological model: parameter space Cherenkov AGN Instrumentation and Methods for Astrophysics (astro-ph.IM) Physics High Energy Astrophysical Phenomena (astro-ph.HE) background new physics Astrophysics::Instrumentation and Methods for Astrophysics redshift sensitivity Redshift violation: Lorentz 3. Good health observatory error: statistical Extragalactic background light Intergalactic travel axion-like particles Astrophysics - Instrumentation and Methods for Astrophysics Astrophysics - High Energy Astrophysical Phenomena [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph] |
| Zdroj: | PoS 37th International Cosmic Ray Conference 37th International Cosmic Ray Conference, Jul 2021, Berlin, Germany. pp.894, ⟨10.22323/1.395.0894⟩ |
| DOI: | 10.22323/1.395.0894⟩ |
| Popis: | The Cherenkov Telescopic Array (CTA), the next-generation ground-based gamma-ray observatory, will have unprecedented sensitivity, providing answers to open questions in gamma-ray cosmology and fundamental physics. Using simulations of active galactic nuclei observations foreseen in the CTA Key Science Program, we find that CTA will measure gamma-ray absorption on the extragalactic background light with a statistical error below 15% up to the redshift of 2 and detect or establish limits on gamma halos induced by the intergalactic magnetic field of at least 0.3 pG. Extragalactic observations using CTA also demonstrate the potential for testing physics beyond the Standard Model. The best state-of-the-art constraints on the Lorentz invariance violation from astronomical gamma-ray observations will be improved at least two- to threefold. CTA will also probe the parameter space where axion-like particles can represent a significant proportion - if not all - of dark matter. Joint multiwavelength and multimessenger observations, carried out together with other future observatories, will further foster the growth of gamma-ray cosmology. 13 pages, 4 figures, conference proceedings of ICRC 2021 |
| Databáze: | OpenAIRE |
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