Journal of Astronomy and Space Sciences (Dec 2004)

Sensitivity Calibration of Far-Ultraviolet Imaging Spectrograph

  • I. -J. Kim,
  • K. -I. Seon,
  • I.-S. Yuk,
  • U.-W. Nam,
  • H. Jin,
  • J.-H. Park,
  • K.-S. Ryu,
  • D.-H. Lee,
  • W. Han,
  • K.-W. Min,
  • J. Edelstein,
  • E. Korpela

DOI
https://doi.org/10.5140/JASS.2004.21.4.383
Journal volume & issue
Vol. 21, no. 4
pp. 383 – 390

Abstract

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We describe the in-flight sensitivity calibration of the Far ultraviolet Imaging Spectrograph (FIMS, also known as SPEAR) onboard the first Korean science satellite, STSAT-1, which was launched in September 2003. The sensitivity calibration is based on a comparison of the FIMS observations of the hot white dwarf G191B2B, and two O-type stars Alpha-Cam, HD93521 with the HUT (Hopkins Ultraviolet Telescope) observations. The FIMS observations for the calibration targets have been conducted from November 2003 through May 2004. The effective areas calculated from the targets are compared with each other.

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