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Proceedings Paper

An x-ray polarimeter for HXMT mission
Author(s): Enrico Costa; Ronaldo Bellazzini; Gianpiero Tagliaferri; Luca Baldini; Stefano Basso; Johan Bregeon; Alessandro Brez; Oberto Citterio; Vincenzo Cotroneo; Filippo Frontera; Massimo Frutti; Giorgio Matt; Massimo Minuti; Fabio Muleri; Giovanni Pareschi; Giuseppe Cesare Perola; Alda Rubini; Carmelo Sgro; Paolo Soffitta; Gloria Spandre
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Paper Abstract

The development of micropixel gas detectors, capable to image tracks produced in a gas by photoelectrons, makes possible to perform polarimetry of X-ray celestial sources in the focus of grazing incidence X-ray telescopes. HXMT is a mission by the Chinese Space Agency aimed to survey the Hard X-ray Sky with Phoswich detectors, by exploitation of the direct demodulation technique. Since a fraction of the HXMT time will be spent on dedicated pointing of particular sources, it could host, with moderate additional resources a pair of X-ray telescopes, each with a photoelectric X-ray polarimeter in the focal plane. We present the design of the telescopes and the focal plane instrumentation and discuss the performance of this instrument to detect the degree and angle of linear polarization of some representative sources. Notwithstanding the limited resources the proposed instrument can represent a breakthrough in X-ray Polarimetry.

Paper Details

Date Published: 26 October 2007
PDF: 10 pages
Proc. SPIE 6686, UV, X-Ray, and Gamma-Ray Space Instrumentation for Astronomy XV, 66860Z (26 October 2007); doi: 10.1117/12.734536
Show Author Affiliations
Enrico Costa, Istituto di Astrofisica Spaziale e Fisica Cosmica (Italy)
Ronaldo Bellazzini, Istituto Nazionale di Fisica Nucleare (Italy)
Gianpiero Tagliaferri, Osservatorio Astronomico di Brera (Italy)
Luca Baldini, Istituto Nazionale di Fisica Nucleare (Italy)
Stefano Basso, Osservatorio Astronomico di Brera (Italy)
Johan Bregeon, Istituto Nazionale di Fisica Nucleare (Italy)
Alessandro Brez, Istituto Nazionale di Fisica Nucleare (Italy)
Oberto Citterio, Osservatorio Astronomico di Brera (Italy)
Vincenzo Cotroneo, Osservatorio Astronomico di Brera (Italy)
Filippo Frontera, Univ. di Ferrara (Italy)
Istituto di Astrofisica Spaziale e Fisica Cosmica (Italy)
Massimo Frutti, Istituto di Astrofisica Spaziale e Fisica Cosmica (Italy)
Giorgio Matt, Univ. di Roma Tre (Italy)
Massimo Minuti, Istituto Nazionale di Fisica Nucleare (Italy)
Fabio Muleri, Istituto di Astrofisica Spaziale e Fisica Cosmica (Italy)
Univ. di Roma Tor Vergata (Italy)
Giovanni Pareschi, Osservatorio Astronomico di Brera (Italy)
Giuseppe Cesare Perola, Univ. di Roman Tre (Italy)
Alda Rubini, Istituto di Astrofisica Spaziale e Fisica Cosmica (Italy)
Carmelo Sgro, Istituto Nazionale di Fisica Nucleare (Italy)
Paolo Soffitta, Istituto di Astrofisica Spaziale e Fisica Cosmica (Italy)
Gloria Spandre, Istituto Nazionale di Fisica Nucleare (Italy)


Published in SPIE Proceedings Vol. 6686:
UV, X-Ray, and Gamma-Ray Space Instrumentation for Astronomy XV
Oswald H.W. Siegmund, Editor(s)

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