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MID- AND FAR-INFRARED PROPERTIES OF LOCAL ACTIVE GALACTIC NUCLEI KCI 등재

  • 언어ENG
  • URLhttps://db.koreascholar.com/Article/Detail/389918
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천문학논총 (Publications of the Korean Astronomical Society)
한국천문학회 (Korean Astronomical Society)
초록

We investigate the mid-infrared (MIR) to far-infrared (FIR) properties of a nearly complete sample of local active galactic nuclei (AGNs) detected in the Swift/Burst Alert telescope (BAT) all-sky hard X-ray (14-195 keV) survey, based on the cross correlation with the infrared survey catalogs of AKARI, IRAS and WISE. Out of 135 non-blazar AGNs in the Swift/BAT 9-month catalog, we obtain the MIR photometric data for 128 sources in either the 9, 12, 18, 22, and $25{\mu}m$ band. We find a good correlation between their hard X-ray and MIR luminosities ranging three orders of magnitude (42 < log λLλ(9,18 μm ) < 45), which is tighter than that with the FIR luminosities at 90 μm . Both X-ray unabsorbed and absorbed AGNs follow the same correlation, implying isotropic infrared emission, as expected in clumpy dust tori models rather than homogeneous ones.

목차
ABSTRACT
1. INTRODUCTION
2. SAMPLE SELECTION
    2.1. Parent Sample and IR Counterparts
    2.2. AGN TYPE
3. RESULT
REFERENCES
저자
  • KOHEI ICHIKAWA(Department of Astronomy, Graduate School of Science, Kyoto University)
  • YOSHIHIRO UEDA(Department of Astronomy, Graduate School of Science, Kyoto University)
  • YUICHI TERASHIMA(Department of Physics, Faculty of Science, Ehime University)
  • SHINKI OYABU(Graduate School of Science, Nagoya University)
  • POSHAK GANDHI(Institute of Space and Astronautical Science (ISAS), Japan Aerospace Exploration Agency)
  • KEIKO MATSUTA(Department of Space and Astronautical Science, The Graduate University for Advanced Studies)
  • TAKAO NAKAGAWA(Institute of Space and Astronautical Science (ISAS), Japan Aerospace Exploration Agency)