From diffuse extragalactic and galactic gamma rays to limits on extra dimensions
| Autor: | Bruno Mansoulie, M. Casse, Joseph Silk |
|---|---|
| Přispěvatelé: | Institut de Recherches sur les lois Fondamentales de l'Univers (IRFU), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, Institut d'Astrophysique de Paris (IAP), Institut national des sciences de l'Univers (INSU - CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS) |
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
gamma-rays: diffuse background
Cosmology and Nongalactic Astrophysics (astro-ph.CO) gamma ray: background scale: TeV Astrophysics::High Energy Astrophysical Phenomena supernova: collapse Dark matter Planck mass FOS: Physical sciences Astrophysics Astrophysics::Cosmology and Extragalactic Astrophysics 01 natural sciences GLAST dark matter law.invention Gravitation gravitation-gamma-rays: diffuse background law 0103 physical sciences 010306 general physics Collider Astrophysics::Galaxy Astrophysics High Energy Astrophysical Phenomena (astro-ph.HE) Physics gamma ray: galaxy energy: emission 010308 nuclear & particles physics Graviton Gamma ray scale: Planck Astronomy and Astrophysics dark matter: annihilation Extra dimensions Supernova Automatic Keywords Space and Planetary Science gravitation graviton High Energy Physics::Experiment ADD model higher-dimensional Astrophysics - High Energy Astrophysical Phenomena [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph] Astrophysics - Cosmology and Nongalactic Astrophysics |
| Zdroj: | Mon.Not.Roy.Astron.Soc. Mon.Not.Roy.Astron.Soc., 2020, 492 (1), pp.L66-L68. ⟨10.1093/mnrasl/slz155⟩ Monthly Notices of the Royal Astronomical Society Monthly Notices of the Royal Astronomical Society, 2020, 492 (1), pp.L66-L68. ⟨10.1093/mnrasl/slz155⟩ |
| ISSN: | 0035-8711 1365-2966 |
| DOI: | 10.1093/mnrasl/slz155⟩ |
| Popis: | We derive the maximum fraction of energy emitted in the form of massive (Kaluza- Klein) gravitons by core collapse supernovae, and the corresponding minimal extra-dimensional Planck mass M* in the ADD gravity framework at TeV scales. Our constraints arise: a) from the extragalactic gamma ray background observed by Fermi-LAT after astrophysical sources have been removed, and b) via the residual galactic emission left after astrophysical and potentially dark matter emission have been removed. We focus on a number of extra dimensions 3 and 4, since M* is then in the TeV range, where astrophysical and collider constraints compete. Lower limits on M* are derived in case a) of 8.0 TeV and 1.1 TeV, and in case b) of 16 TeV and 1.9 TeV, for a number of extra dimensions n=3 and n=4 respectively. These limits are especially robust and insensitive to the various uncertainties involved. Comment: 4 pages, to appear in MNRAS Letters |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|