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Title: e-ASTROGAM mission: a major step forward for gamma-ray polarimetry

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.
Authors:
 [1] ;  [2] ;  [3] ;  [4] ;  [3] ;  [5] ;  [6] ;  [4]
  1. Univ. Paris-Sud, Orsay (France); Univ. Paris-Saclay, Orsay (France). Centre de Sciences Nucleaires et de Sciences de la Matiere
  2. Univ. degli Studi di Padova (Italy)
  3. Univ. Paris Diderot (France)
  4. Univ. College Dublin (Ireland)
  5. Stanford Univ., CA (United States). Kavli Inst. for Cosmological Physics (KICP)
  6. Istituto Nazionale di Astrofisica (INAF), Roma (Italy). Istt. di Astrofisica e Planetologia Spaziali
Publication Date:
Grant/Contract Number:
AC02-76SF00515; 654215
Type:
Accepted Manuscript
Journal Name:
Journal of Astronomical Telescopes, Instruments, and Systems
Additional Journal Information:
Journal Volume: 4; Journal Issue: 01; Journal ID: ISSN 2329-4124
Publisher:
SPIE
Research Org:
SLAC National Accelerator Lab., Menlo Park, CA (United States)
Sponsoring Org:
USDOE; European Union (EU)
Contributing Orgs:
e-ASTROGAM Collaboration
Country of Publication:
United States
Language:
English
Subject:
79 ASTRONOMY AND ASTROPHYSICS; gamma-ray astronomy; polarization; space mission; Compton telescope; pair creation telescope
OSTI Identifier:
1437579

Tatischeff, Vincent, De Angelis, Alessandro, Gouiffes, Christian, Hanlon, Lorraine, Laurent, Philippe, Madejski, Grzegorz M., Tavani, Marco, and Uliyanov, Alexey. e-ASTROGAM mission: a major step forward for gamma-ray polarimetry. United States: N. p., Web. doi:10.1117/1.jatis.4.1.011003.
Tatischeff, Vincent, De Angelis, Alessandro, Gouiffes, Christian, Hanlon, Lorraine, Laurent, Philippe, Madejski, Grzegorz M., Tavani, Marco, & Uliyanov, Alexey. e-ASTROGAM mission: a major step forward for gamma-ray polarimetry. United States. doi:10.1117/1.jatis.4.1.011003.
Tatischeff, Vincent, De Angelis, Alessandro, Gouiffes, Christian, Hanlon, Lorraine, Laurent, Philippe, Madejski, Grzegorz M., Tavani, Marco, and Uliyanov, Alexey. 2017. "e-ASTROGAM mission: a major step forward for gamma-ray polarimetry". United States. doi:10.1117/1.jatis.4.1.011003. https://www.osti.gov/servlets/purl/1437579.
@article{osti_1437579,
title = {e-ASTROGAM mission: a major step forward for gamma-ray polarimetry},
author = {Tatischeff, Vincent and De Angelis, Alessandro and Gouiffes, Christian and Hanlon, Lorraine and Laurent, Philippe and Madejski, Grzegorz M. and Tavani, Marco and Uliyanov, Alexey},
abstractNote = {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.},
doi = {10.1117/1.jatis.4.1.011003},
journal = {Journal of Astronomical Telescopes, Instruments, and Systems},
number = 01,
volume = 4,
place = {United States},
year = {2017},
month = {11}
}