Journal of The Korean Astronomical Society (천문학회지)

The Korean Astronomical Society (한국천문학회)
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FUV IMAGING SPECTROSCOPIC OBSERVATIONS OF INTERSTELLAR MEDIUM WITH FIMS

  • SEON KWANG-IL (Korea Astronomy and Space Science Institute) ;
  • HAN WONYONG (Korea Astronomy and Space Science Institute) ;
  • LEE DAE-HEE (Korea Astronomy and Space Science Institute) ;
  • NAM UK-WON (Korea Astronomy and Space Science Institute) ;
  • PARK JANG-HYUN (Korea Astronomy and Space Science Institute) ;
  • YUK IN-SOO (Korea Astronomy and Space Science Institute) ;
  • JIN HO (Korea Astronomy and Space Science Institute) ;
  • MIN KYUNG WOOK (Korea Advanced Institute of Science and Technology) ;
  • RYU KWANG-SUN (Korea Advanced Institute of Science and Technology) ;
  • EDELSTEIN JERRY (Space Sciences Laboratory, University of California) ;
  • KORPELA ERIC (Space Sciences Laboratory, University of California)
  • Published : 2005.06.01
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Abstract

The FIMS (Far-ultraviolet IMaging Spectrograph; also known as SPEAR, Spectroscopy of Plasma Evolution from Astrophysical Radiation) is the primary payload of the STSAT-1, the first Korean science satellite, which was launched in September, 2003. The FIMS performs spectral imaging of diffuse far-ultraviolet emission with the unprecedented wide field of view and the relatively good spectral resolution. We present far-ultraviolet spectral observations of highly ionized interstellar medium including supernova remnants, superbubbles, soft X-ray shadows, and the molecular hydrogen fluorescent emission lines. The FIMS has detected He II, C III, 0 III, O IV, Si IV, O VI, and $H_2$ fluorescent emission lines. The emission lines arise in shocked or thermally heated and in photo-ionized gases. We present an overview of the FIMS instrument and its initial observational results.

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