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AN EXTENSION OF A RELIABLE WAVELENGTH COVERAGE OF THE AKARI NG GRISM MODE KCI 등재

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  • URLhttps://db.koreascholar.com/Article/Detail/384294
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천문학논총 (Publications of the Korean Astronomical Society)
한국천문학회 (Korean Astronomical Society)
초록

The Infrared Camera onboard the AKARI satellite carried out spectroscopic observations with a grism mode named NG, whose wavelength coverage was 2.5{5.0 m. We reinvestigate the current ux calibration for the NG grism mode, with which calculated ux density implausibly decreases at 4.9 m especially for red objects due to the second-order light contamination. We perform a new spectral response calibration using blue and red standard objects simultaneously. New response curves which contain both the rst- and second-order light are able to separate each contribution consistently and useful for studies of red objects such as CO ro-vibrational absorption in active galactic nuclei.

목차
ABSTRACT
1. INTRODUCTION
2. METHOD
    2.1. Treatment of the 2nd Order Light Contamination
    2.2. Standard Objects
    2.3. Pixel-to-Wavelength Relation
3. RESULTS
4. CONCLUSIONS
REFERENCES
저자
  • Shunsuke Baba(Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency/Department of Physics, Graduate School of Science, The University of Tokyo)
  • Takao Nakagawa(Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency)
  • Naoki Isobe(Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency)
  • Mai Shirahata(National Astronomical Observatory of Japan)
  • Youichi Ohyama(Institute of Astronomy and Astrophysics, Academia Sinica)
  • Kenichi Yano(Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency/Department of Physics, Graduate School of Science, The University of Tokyo)
  • Chihiro Kochi(Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency/Department of Physics, Graduate School of Science, The University of Tokyo)