Würzburg 2018 – wissenschaftliches Programm

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T: Fachverband Teilchenphysik

T 30: Gammaastronomie I

T 30.1: Gruppenbericht

Dienstag, 20. März 2018, 16:30–16:50, Philo-HS7

e-ASTROGAM - The Next Big Step in Gamma-ray Astrophysics at MeV to GeV Energies — •Uwe Oberlack — JGU Mainz — on behalf of the e-ASTROGAM Collaboration

e-ASTROGAM (enhanced-ASTROGAM) is a breakthrough Observatory space mission dedicated to the study of the non-thermal universe in the photon energy range from 0.3 MeV to 3 GeV. This Compton and pair telescope, proposed as ESA's M5 medium-size mission in the Cosmic Visions program, is composed of a Silicon tracker, a calorimeter, and an anticoincidence system. Based on advanced, space-proven detector technology, the mission provides unprecedented sensitivity, angular and energy resolution, combined with polarimetric capability. The lower energy limit can be pushed to energies as low as 150 keV for the tracker and to 30 keV for calorimetric detection. 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 instruments, e-ASTROGAM will determine the origin of key isotopes fundamental for the understanding of supernova explosions and the chemical evolution of our Galaxy. With its high sensitivity and large field-of-view, the mission will provide unique data of significant interest to a broad astronomical community, complementary to future observatories covering lower and higher energy parts of the electromagnetic spectrum, gravitational waves, as well as astrophysical neutrinos.