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Special Section Guest Editorial: The Hitomi X-ray Observatory
Kelley, Richard L.; Nakazawa, Kazuhiro
This guest editorial introduces the Special Section on the Hitomi X-Ray Observatory, Part 1.
Examining the angular resolution of the ASTRO-H's soft x-ray telescopes
Maeda, Yoshitomo; Ishida, Manabu; Okajima, Takashi +12 more
The international x-ray observatory ASTRO-H was renamed "Hitomi" after launch. It covers a wide energy range from a few hundred eV to 600 keV. It is equipped with two soft x-ray telescopes (SXTs: SXT-I and SXT-S) for imaging the soft x-ray sky up to ∼12 keV, which focus an image onto the respective focal-plane detectors: CCD camera (SXI) and a cal…
On the in-flight calibration plans of modern x-ray observatories
Petre, Robert; Guainazzi, Matteo; Audard, Marc +5 more
We present an overview of the set of celestial sources used for in-flight calibration of x-ray detectors by past and operational missions. We show the rationale behind their choice as a guideline for future missions aiming at optimizing the critical early phases of their science operations.