FIRST IMAGES FROM THE FOCUSING OPTICS X-RAY SOLAR IMAGER

被引：58

作者：

Krucker, Saem ^{[1
,2
]}

Christe, Steven ^{[3
]}

Glesener, Lindsay ^{[1
]}

Ishikawa, Shin-Nosuke ^{[4
]}

Ramsey, Brian ^{[5
]}

Takahashi, Tadayuki ^{[6
,7
]}

Watanabe, Shin ^{[6
,7
]}

Saito, Shinya ^{[6
,7
]}

Gubarev, Mikhail ^{[5
]}

Kilaru, Kiranmayee ^{[5
]}

Tajima, Hiroyasu ^{[8
]}

Tanaka, Takaaki ^{[9
]}

Turin, Paul ^{[1
]}

McBride, Stephen ^{[1
]}

Glaser, David ^{[1
]}

Fermin, Jose ^{[1
]}

White, Stephen ^{[10
]}

Lin, Robert ^{[1
]}

机构：

[1] Univ Calif Berkeley, Space Sci Lab, Berkeley, CA 94720 USA

[2] Univ Appl Sci & Arts Northwestern Switzerland, Windisch, Switzerland

[3] NASA, Goddard Space Flight Ctr, Greenbelt, MD 20771 USA

[4] Natl Astron Observ, Mitaka, Tokyo 181, Japan

[5] NASA, George C Marshall Space Flight Ctr, Huntsville, AL 35812 USA

[6] Inst Space & Astronaut Sci ISAS JAXA, Sagamihara, Kanagawa, Japan

[7] Univ Tokyo, Dept Phys, Tokyo 113, Japan

[8] Nagoya Univ, Solar Terr Environm Lab, Nagoya, Aichi 4648601, Japan

[9] Kyoto Univ, Dept Phys, Kyoto 606, Japan

[10] Air Force Res Lab, Albuquerque, NM USA

来源：

ASTROPHYSICAL JOURNAL LETTERS | 2014年 / 793卷 / 02期

关键词：

instrumentation: miscellaneous; Sun: corona; Sun: flares; Sun:; X-rays; gamma rays; RHESSI OBSERVATIONS; QUIET SUN; TELESCOPE; FLARES;

D O I：

10.1088/2041-8205/793/2/L32

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The Focusing Optics X-ray Solar Imager (FOXSI) sounding rocket payload flew for the first time on 2012 November 2, producing the first focused images of the Sun above 5 keV. To enable hard X-ray (HXR) imaging spectroscopy via direct focusing, FOXSI makes use of grazing-incidence replicated optics combined with fine-pitch solid-state detectors. On its first flight, FOXSI observed several targets that included active regions, the quiet Sun, and a GOES-class B2.7 microflare. This Letter provides an introduction to the FOXSI instrument and presents its first solar image. These data demonstrate the superiority in sensitivity and dynamic range that is achievable with a direct HXR imager with respect to previous, indirect imaging methods, and illustrate the technological readiness for a spaceborne mission to observe HXRs from solar flares via direct focusing optics.

引用

页数：5

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