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CHANDRA OBSERVATIONS OF THE AKARI NEP DEEP FIELD KCI 등재

  • 언어ENG
  • URLhttps://db.koreascholar.com/Article/Detail/384334
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천문학논총 (Publications of the Korean Astronomical Society)
한국천문학회 (Korean Astronomical Society)
초록

The AKARI NEP Deep Field Survey is an international multiwavelength survey over 0.4 deg2 of the sky. This is the deepest survey made by the InfraRed Camera (IRC) of the infrared astronomical satellite AKARI with 9 filters continuously covering the 2-25 μm range, including three filters in the Spitzer gap between the IRAC and MIPS coverages. This enabled us to make sensitive MIR detection of AGN candidates at z~ 1, based on hot dust emission in the AGN torus. It is also eficient in detecting highly obscured Compton-thick AGN population. In this article, we report the rst results of X-ray observations on this eld. The field was covered by 15 overlapping Chandra ACIS-I observations with a total exposure of ~300 ks, detecting  450 X-ray sources. We utilize rest-frame stacking analysis of the MIR AGN candidates that are not detected individually. Our preliminary analysis shows a marginal detection of the rest-frame stacked Fe Kα line from our strong Compton-thick candidates.

목차
ABSTRACT
1. INTRODUCTION
2. OBSERVATIONS AND SOURCE DETECTION
3. SEARCH FOR COMPTON-THICK ACCRETION
REFERENCES
저자
  • T. Miyaji(Instituto de Astronoma, Universidad Nacional Autonoma de Mexico/University of California)
  • M. Krumpe(Max-Planck-Institut fur extraterrestrische Physik/European Southern Observatory)
  • H. Brunner(Max-Planck-Institut fur extraterrestrische Physik)
  • T. Ishigaki(Physics Section, Iwate University)
  • H. Hanami(Physics Section, Iwate University)
  • A. Markowitz(University of California/Karl Remeis Sternwarte & ECAP)
  • T. Takagi(Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency)
  • T. Goto(Inst. of Astronomy and Dept. of Physics, National Tsing Hua Univ.)
  • M. A. Malkan(Department of Physics and Astronomy, UCLA, Los Angeles)
  • H. Matsuhara(Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency/Dept. of Space and Astronautical Science, The Graduate University for Advanced Studies)
  • C. Pearson(RAL Space, STFC Rutherford Appleton Laboratory/The Open University/University of Oxford, Keble Rd)
  • Y. Ueda(Department of Astronomy, Kyoto University)
  • T. Wada(Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency)