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X-ray polarimetry with the Polarization Spectroscopic Telescope Array (PolSTAR).

Krawczynski, H.S. and Stern, D. and Harrison, F.A. and Kislat, F.F. and Zajczyk, A. and Beilicke, M. and Hoormann, J. and Guo, Q. and Endsley, R. and Ingram, A.R. and Miyasaka, H. and Madsen, K.K. and Aaron, K.M. and Amini, R. and Baring, M.G. and Beheshtipour, B. and Bodaghee, A. and Booth, J. and Borden, C. and Böttcher, M. and Christensen, F.E. and Coppi, P.S. and Cowsik, R. and Davis, S. and Dexter, J. and Done, C. and Dominguez, L.A. and Ellison, D. and English, R.J. and Fabian, A.C. and Falcone, A. and Favretto, J.A. and Fernández, R. and Giommi, P. and Grefenstette, B.W. and Kara, E. and Lee, C.H. and Lyutikov, M. and Maccarone, T. and Matsumoto, H. and McKinney, J. and Mihara, T. and Miller, J.M. and Narayan, R. and Natalucci, L. and Özel, F. and Pivovaroff, M.J. and Pravdo, S. and Psaltis, D. and Okajima, T. and Toma, K. and Zhang, W.W. (2016) 'X-ray polarimetry with the Polarization Spectroscopic Telescope Array (PolSTAR).', Astroparticle physics., 75 . pp. 8-28.


This paper describes the Polarization Spectroscopic Telescope Array (PolSTAR), a mission proposed to NASA’s 2014 Small Explorer (SMEX) announcement of opportunity. PolSTAR measures the linear polarization of 3–50 keV (requirement; goal: 2.5–70 keV) X-rays probing the behavior of matter, radiation and the very fabric of spacetime under the extreme conditions close to the event horizons of black holes, as well as in and around magnetars and neutron stars. The PolSTAR design is based on the technology developed for the Nuclear Spectroscopic Telescope Array (NuSTAR) mission launched in June 2012. In particular, it uses the same X-ray optics, extendable telescope boom, optical bench, and CdZnTe detectors as NuSTAR. The mission has the sensitivity to measure ∼1% linear polarization fractions for X-ray sources with fluxes down to ∼5 mCrab. This paper describes the PolSTAR design as well as the science drivers and the potential science return.

Item Type:Article
Full text:(AM) Accepted Manuscript
Available under License - Creative Commons Attribution Non-commercial No Derivatives.
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Publisher statement:© 2015 This manuscript version is made available under the CC-BY-NC-ND 4.0 license
Date accepted:22 October 2015
Date deposited:29 May 2018
Date of first online publication:30 October 2015
Date first made open access:No date available

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