The e-ASTROGAM gamma-ray space observatory for the multimessenger astronomy of the 2030s

V. Tatischeff (1) , A. de Angelis , M. Tavani , I. Grenier (2) , U. Oberlack , L. Hanlon , R. Walter , A. Argan , P. von Ballmoos (3) , A. Bulgarelli , I. Donnarumma , M. Hernanz , I. Kuvvetli , M. Mallamaci , M. Pearce , A. Zdziarski , A. Aboudan , M. Ajello , G. Ambrosi , D. Bernard (4) , E. Bernardini , V. Bonvicini , A. Brogna , M. Branchesi , C. Budtz-Jorgensen , A. Bykov , R. Campana , M. Cardillo , S. Ciprini , P. Coppi , P. Cumani (1) , R.M. Curado da Silva , D. de Martino , R. Diehl , M. Doro , V. Fioretti , S. Funk , G. Ghisellini , F. Giordano , J.E. Grove , C. Hamadache (1) , D.H. Hartmann , M. Hayashida , J. Isern , G. Kanbach , J. Kiener (1) , J. Knödlseder (3) , C. Labanti , P. Laurent (5) , M. Leising , O. Limousin (6) , F. Longo , K. Mannheim , M. Marisaldi , M. Martinez , M.N. Mazziotta , J.E. Mcenery , S. Mereghetti , G. Minervini , A. Moiseev , A. Morselli , K. Nakazawa , P. Orleanski , J.M. Paredes , B. Patricelli , Jean Peyré (1) , G. Piano , M. Pohl , R. Rando , M. Roncadelli , F. Tavecchio , D.J. Thompson , R. Turolla , A. Ulyanov , A. Vacchi , X. Wu , A. Zoglauer

1 CSNSM - Centre de Sciences Nucléaires et de Sciences de la Matière
2 AIM (UMR7158 / UMR_E_9005 / UM_112) - Astrophysique Interprétation Modélisation
3 IRAP - Institut de recherche en astrophysique et planétologie
4 LLR - Laboratoire Leprince-Ringuet
5 APC (UMR_7164) - AstroParticule et Cosmologie
6 IRFU - Institut de Recherches sur les lois Fondamentales de l'Univers

e-ASTROGAM is a concept for a breakthrough observatory space mission carrying a γ-ray telescope dedicated to the study of the non-thermal Universe in the photon energy range from 0.15 MeV to 3 GeV. The lower energy limit can be pushed down to energies as low as 30 keV for gamma-ray burst detection with the calorimeter. The mission is based on an advanced space-proven detector technology, with unprecedented sensitivity, angular and energy resolution, combined with remarkable polarimetric capability. Thanks to its performance in the MeV–GeV domain, substantially improving its predecessors, e-ASTROGAM will open a new window on the non-thermal Universe, making pioneering observations of the most powerful Galactic and extragalactic sources, elucidating the nature of their relativistic outflows and their effects on the surroundings. With a line sensitivity in the MeV energy range one to two orders of magnitude better than previous and current generation instruments, e-ASTROGAM will determine the origin of key isotopes fundamental for the understanding of supernova explosion and the chemical evolution of our Galaxy. The mission will be a major player of the multiwavelength, multimessenger time-domain astronomy of the 2030s, and provide unique data of significant interest to a broad astronomical community, complementary to powerful observatories such as LISA, LIGO, Virgo, KAGRA, the Einstein Telescope and the Cosmic Explorer, IceCube-Gen2 and KM3NeT, SKA, ALMA, JWST, E-ELT, LSST, Athena, and the Cherenkov Telescope Array.

Mots clés: Gamma-ray astronomy; Time-domain astronomy; Space mission; Compton and pair creation telescope; Gamma-ray polarization; Nuclear astrophysics; High-energy astrophysical phenomena; gamma ray: detector; gamma ray: burst; photon: energy; detector: technology; observatory; sensitivity; galaxy; Cherenkov Telescope Array; Einstein Telescope; energy resolution; calorimeter; performance; supernova; messenger; KM3NeT; IceCube; KAGRA; VIRGO; LIGO; LISA

Domaines: Astrophysique [astro-ph]

V. Tatischeff, A. de Angelis, M. Tavani, I. Grenier, U. Oberlack, et al.. The e-ASTROGAM gamma-ray space observatory for the multimessenger astronomy of the 2030s. SPIE Astronomical Telescopes + Instrumentation 2018, Jun 2018, Austin, United States. pp.106992J, ⟨10.1117/12.2315151⟩. ⟨hal-01846557⟩