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Proceedings Paper

The Polarimeter for Relativistic Astrophysical X-ray Sources
Author(s): Keith Jahoda; Timothy R. Kallman; Chryssa Kouveliotou; Lorella Angelini; J. Kevin Black; Joanne E. Hill; Theodore Jaeger; Philip E. Kaaret; Craig B. Markwardt; Takashi Okajima; Robert Petre; Jeremy Schnittman; Yang Soong; Tod E. Strohmayer; Toru Tamagawa; Yuzuru Tawara
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Paper Abstract

The Polarimeter for Relativistic Astrophysical X-ray Sources (PRAXyS) is one of three Small Explorer (SMEX) missions selected by NASA for Phase A study, with a launch date in 2020. The PRAXyS Observatory exploits grazing incidence X-ray mirrors and Time Projection Chamber Polarimeters capable of measuring the linear polarization of cosmic X-ray sources in the 2-10 keV band. PRAXyS combines well-characterized instruments with spacecraft rotation to ensure low systematic errors. The PRAXyS payload is developed at the Goddard Space Flight Center with the Johns Hopkins University Applied Physics Laboratory, University of Iowa, and RIKEN (JAXA) collaborating on the Polarimeter Assembly. The LEOStar-2 spacecraft bus is developed by Orbital ATK, which also supplies the extendable optical bench that enables the Observatory to be compatible with a Pegasus class launch vehicle. A nine month primary mission will provide sensitive observations of multiple black hole and neutron star sources, where theory predicts polarization is a strong diagnostic, as well as exploratory observations of other high energy sources. The primary mission data will be released to the community rapidly and a Guest Observer extended mission will be vigorously proposed.

Paper Details

Date Published: 26 August 2016
PDF: 10 pages
Proc. SPIE 9905, Space Telescopes and Instrumentation 2016: Ultraviolet to Gamma Ray, 990516 (26 August 2016); doi: 10.1117/12.2234220
Show Author Affiliations
Keith Jahoda, NASA Goddard Space Flight Ctr. (United States)
Timothy R. Kallman, NASA Goddard Space Flight Ctr. (United States)
Chryssa Kouveliotou, The George Washington Univ. (United States)
Lorella Angelini, NASA Goddard Space Flight Ctr. (United States)
J. Kevin Black, NASA Goddard Space Flight Ctr. (United States)
Rock Creek Scientific (United States)
Joanne E. Hill, NASA Goddard Space Flight Ctr. (United States)
Theodore Jaeger, Johns Hopkins Univ. Applied Physics Lab. (United States)
Philip E. Kaaret, The Univ. of Iowa (United States)
Craig B. Markwardt, NASA Goddard Space Flight Ctr. (United States)
Takashi Okajima, NASA Goddard Space Flight Ctr. (United States)
Robert Petre, NASA Goddard Space Flight Ctr. (United States)
Jeremy Schnittman, NASA Goddard Space Flight Ctr. (United States)
Yang Soong, NASA Goddard Space Flight Ctr. (United States)
Universities Space Research Association (United States)
Tod E. Strohmayer, NASA Goddard Space Flight Ctr. (United States)
Toru Tamagawa, RIKEN (Japan)
Yuzuru Tawara, Nagoya Univ. (Japan)


Published in SPIE Proceedings Vol. 9905:
Space Telescopes and Instrumentation 2016: Ultraviolet to Gamma Ray
Jan-Willem A. den Herder; Tadayuki Takahashi; Marshall Bautz, Editor(s)

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