Ground-based x-ray calibration of the Astro-E2 x-ray telescope: I. With pencil beam

Details Ground-based x-ray calibration of the Astro-E2 x-ray telescope: I. With pencil beam Ground-based x-ray calibration of the Astro-E2 x-ray telescope: I. With pencil beam

Oct 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004spie.5488...93i&link_type=abstract

UV and Gamma-Ray Space Telescope Systems. Edited by Hasinger, Günther; Turner, Martin J. L. Proceedings of the SPIE, Volume 548

Astronomy and Astrophysics

Astronomy

2

Scientific paper

We present X-ray characteristics of X-ray telescopes (XRTs) onboard the Astro-E2 satellite. It is scheduled to be launched in February 2005. We have been performed X-ray characterization measurements of XRTs at Institute of Space and Astronautical Science (ISAS) since January 2003. We adopted a raster scan method with a narrow X-ray pencil beam. Angular resolution of the Quadrants composed of the Astro-E2 XRT was evaluated to be 1$^{¥prime}$.6 -- 2$^{¥prime}$.2 (HPD; Half Power Diameter), irrespective of the X-ray energy, while those of the Astro-E XRT was 2$^{¥prime}$.0 -- 2$^{¥prime}$.2. The effective area of a telescope is approximately 450, 330, 250, and 170 [cm$^{2}$] at energies of 1.49, 4.51, 8.04, and 9.44 keV, respectively. The field of view (FOV) of the XRTs which is defined as Full Width Half Maximum (FWHM) of the vignetting function is $¥sim 18$ $^{¥prime}$ at 4.51 keV. We summarize these characters of the XRTs.

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