The Bulletin of The Korean Astronomical Society (천문학회보)

The Korean Astronomical Society (한국천문학회)
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Early Science Results from CQUEAN Commissioning Observation : Unique Views on Gamma Ray Bursts to High Redshift Quasars

  • Im, Myung-Shin (CEOU/Dept. of Physics & Astronomy, Seoul National University) ;
  • Pak, Soo-Jong (School of Space Research, Kyung Hee University) ;
  • Park, Won-Kee (CEOU/Dept. of Physics & Astronomy, Seoul National University) ;
  • Choi, Chang-Su (CEOU/Dept. of Physics & Astronomy, Seoul National University) ;
  • Jeon, Yi-Seul (CEOU/Dept. of Physics & Astronomy, Seoul National University) ;
  • Kim, Eun-Bin (School of Space Research, Kyung Hee University) ;
  • Jeong, Hyeong-Ju (School of Space Research, Kyung Hee University) ;
  • Kim, Jin-Young (Dept. of Astronomy and Space Sciences, Kyung Hee University) ;
  • Lim, Ju-Hee (Dept. of Astronomy and Space Sciences, Kyung Hee University)
  • Published : 2010.10.06
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Abstract

CQUEAN (Camera fo QUasars in EArly uNiverse) is a newly developed camera by CEOU for the 2.1m telescope at the McDonald Observatory, Texas, USA. We report the early science results from the commissioning run of CQUEAN which include the observations of the gamma-ray burst (GRB) afterglows and quasars at z ~ 5.5. Although the data were originally taken to test the instrument performance, the results are already very encouraging. We uncovered GRB afterglows at z = 0.8 - 1.4, with our data being used for the international collaboration research to understand the nature of GRBs. The unique filter sets we employed are providing the data which are effective for selecting quasars at z ~ 5.5. The special aspects of CQUEAN - high sensitivity at 0.8-1.1 ${\mu}m$ and fast readouts - will allow us to produce many interesting through surveys of high redshift quasars and fast follow-up of transient objects such as GRBs and exoplanets in future.

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