The Compton Spectrometer and Imager. (arXiv:1908.04334v1 [astro-ph.IM])

The Compton Spectrometer and Imager. (arXiv:1908.04334v1 [astro-ph.IM])
<a href="http://arxiv.org/find/astro-ph/1/au:+Tomsick_J/0/1/0/all/0/1">John A. Tomsick</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Zoglauer_A/0/1/0/all/0/1">Andreas Zoglauer</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Sleator_C/0/1/0/all/0/1">Clio Sleator</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Lazar_H/0/1/0/all/0/1">Hadar Lazar</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Beechert_J/0/1/0/all/0/1">Jacqueline Beechert</a> (UCB), <a href="http://arxiv.org/find/astro-ph/1/au:+Boggs_S/0/1/0/all/0/1">Steven Boggs</a> (UCSD and UCB), <a href="http://arxiv.org/find/astro-ph/1/au:+Roberts_J/0/1/0/all/0/1">Jarred Roberts</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Siegert_T/0/1/0/all/0/1">Thomas Siegert</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Lowell_A/0/1/0/all/0/1">Alex Lowell</a> (UCSD), <a href="http://arxiv.org/find/astro-ph/1/au:+Wulf_E/0/1/0/all/0/1">Eric Wulf</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Grove_E/0/1/0/all/0/1">Eric Grove</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Phlips_B/0/1/0/all/0/1">Bernard Phlips</a> (NRL), <a href="http://arxiv.org/find/astro-ph/1/au:+Brandt_T/0/1/0/all/0/1">Terri Brandt</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Smale_A/0/1/0/all/0/1">Alan Smale</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Kierans_C/0/1/0/all/0/1">Carolyn Kierans</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Burns_E/0/1/0/all/0/1">Eric Burns</a> (GSFC), <a href="http://arxiv.org/find/astro-ph/1/au:+Hartmann_D/0/1/0/all/0/1">Dieter Hartmann</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Leising_M/0/1/0/all/0/1">Mark Leising</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Ajello_M/0/1/0/all/0/1">Marco Ajello</a> (Clemson), <a href="http://arxiv.org/find/astro-ph/1/au:+Fryer_C/0/1/0/all/0/1">Chris Fryer</a> (LANL), <a href="http://arxiv.org/find/astro-ph/1/au:+Amman_M/0/1/0/all/0/1">Mark Amman</a> (independent), <a href="http://arxiv.org/find/astro-ph/1/au:+Chang_H/0/1/0/all/0/1">Hsiang-Kuang Chang</a> (NTHU, Taiwan), <a href="http://arxiv.org/find/astro-ph/1/au:+Jean_P/0/1/0/all/0/1">Pierre Jean</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Ballmoos_P/0/1/0/all/0/1">Peter von Ballmoos</a> (IRAP, France)

In this Astro2020 APC White Paper, we describe a Small Explorer (SMEX)
mission concept called the Compton Spectrometer and Imager. COSI is a Compton
telescope that covers the bandpass often referred to as the “MeV Gap” because
it is the least explored region of the whole electromagnetic spectrum. COSI
provides a significant improvement in sensitivity along with high-resolution
spectroscopy, enabling studies of 511 keV electron-positron annihilation
emission and measurements of several radioactive elements that trace the
Galactic history of supernovae. COSI also measures polarization of gamma-ray
bursts (GRBs), accreting black holes, and pulsars as well as detecting and
localizing multimessenger sources. In the following, we describe the COSI
science, the instrument, and its capabilities. We highlight many Astro2020
science WPs that describe the COSI science in depth.

http://arxiv.org/icons/sfx.gif