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Journal of Astronomical Telescopes, Instruments, and Systems

e-ASTROGAM mission: a major step forward for gamma-ray polarimetry
Author(s): Vincent Tatischeff; Alessandro De Angelis; Christian Gouiffès; Lorraine Hanlon; Philippe Laurent; Grzegorz M. Madejski; Marco Tavani; Alexey Uliyanov; e-ASTROGAM Collaboration
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Paper Abstract

e-ASTROGAM is a gamma-ray space mission proposed for the fifth medium-size mission (M5) of the European Space Agency. It is dedicated to the study of the nonthermal universe in the photon energy range from 0.15    MeV to 3 GeV with unprecedented sensitivity and angular and energy resolution, together with a ground-breaking capability for gamma-ray polarimetric measurements over its entire bandwidth. We discuss here the main polarization results expected at low energies, between 150 keV and 5 MeV, using Compton interactions in the e-ASTROGAM instrument, from observations of active galactic nuclei, gamma-ray bursts, microquasars, and the Crab Pulsar and Nebula. The anticipated performance of the proposed observatory for polarimetry is illustrated by simulations of the polarization signals expected from various sources. We show that polarimetric analyses with e-ASTROGAM should provide definitive insight into the geometry, magnetization, and content of the high-energy plasmas found in the emitting sources, as well as on the processes of radiation of these plasmas.

Paper Details

Date Published: 28 November 2017
PDF: 11 pages
J. Astron. Telesc. Instrum. Syst. 4(1) 011003 doi: 10.1117/1.JATIS.4.1.011003
Published in: Journal of Astronomical Telescopes, Instruments, and Systems Volume 4, Issue 1
Show Author Affiliations
Vincent Tatischeff, Ctr. de Sciences Nucléaires et de Sciences de la Matière - CSNSM (France)
Ctr. National de la Recherche Scientifique (France)
Alessandro De Angelis, Univ. degli Studi di Padova (Italy)
Istituto Superior Técnico (Portugal)
Christian Gouiffès, Univ. Paris Diderot - Paris 7 (France)
Ctr. National de la Recherche Scientifique (France)
Commissariat à l'Énergie Atomique (France)
Lorraine Hanlon, Univ. College Dublin (Ireland)
Philippe Laurent, Univ. Paris Diderot - Paris 7 (France)
Ctr. National de la Recherche Scientifique (France)
CEA-Ctr. de SACLAY (France)
Grzegorz M. Madejski, Kavli Institute for Particle Astrophysics & Cosmology (United States)
Marco Tavani, INAF - Istituto di Astrofisica e Planetologia Spaziali (Italy)
Istituto Nazionale di Fisica Nucleare Sezione di Roma Tor Vergata (Italy)
Univ. degli Studi di Roma “Tor Vergata” (Italy)
Alexey Uliyanov, Univ. College Dublin (Ireland)
e-ASTROGAM Collaboration

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