X-Ray Polarization Measurements with the EXIST Hard X-Ray Survey Telescope

Details X-Ray Polarization Measurements with the EXIST Hard X-Ray Survey Telescope X-Ray Polarization Measurements with the EXIST Hard X-Ray Survey Telescope

Jan 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009aas...21345301k&link_type=abstract

American Astronomical Society, AAS Meeting #213, #453.01; Bulletin of the American Astronomical Society, Vol. 41, p.348

Astronomy and Astrophysics

Astrophysics

Scientific paper

The Energetic X-ray Imaging Survey Telescope (EXIST) is a proposed NASA mission for scanning the entire sky in intermediate and hard X-rays. The EXIST mission includes a wide field of view High Energy Telescope (HET) covering the 5-600 keV energy range, and an infrared telescope. The HET has the capability to measure the energy dependent X-ray polarization properties of moderately bright and bright X-ray sources. Here we report on a study of the polarization sensitivity of EXIST as a function of the integration time. Broadband X-ray polarization measurements with EXIST have the potential to make important contributions to our understanding of a number of astrophysical source types including binary black holes, accreting neutron stars, magnetars, pulsar wind nebulae, active galactic nuclei and gamma-ray bursts. EXIST observations of the X-rays from binary black holes can be used to constrain the spins of black holes. Last but not least, EXIST observations of active galactic nuclei and gamma-ray bursts can be used for extremely sensitive Lorentz Invariance tests.

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