λ5007 and X-RAY PROPERTIES of A COMPLETE SAMPLE of HARD X-RAY SELECTED AGNs in the LOCAL UNIVERSE

Y. Ueda, Y. Hashimoto, K. Ichikawa, Y. Ishino, A. Y. Kniazev, P. Väisänen, C. Ricci, S. Berney, P. Gandhi, M. Koss, R. Mushotzky, Y. Terashima, B. Trakhtenbrot, M. Crenshaw

研究成果: 雜誌貢獻文章

36 引文 斯高帕斯(Scopus)

摘要

We study the correlation between the [O iii] λ5007 and X-ray luminosities of local active galactic nuclei (AGNs), using a complete, hard X-ray (>10 keV) selected sample in the Swift/BAT 9-month catalog. From our optical spectroscopic observations at the South African Astronomical Observatory and the literature, a catalog of [O iii] λ5007 line flux for all 103 AGNs at Galactic latitudes of is compiled. Significant correlations with intrinsic X-ray luminosity () are found for both observed () and extinction-corrected () luminosities, separately for X-ray unabsorbed and absorbed AGNs. We obtain the regression form of and from the whole sample. The absorbed AGNs with low (<0.5%) scattering fractions in soft X-rays show on average smaller and ratios than the other absorbed AGNs, while those in edge-on host galaxies do not. These results suggest that a significant fraction of thisopulation is buried in tori with small opening angles. By using these versus correlations, the X-ray luminosity function (LF) of local AGNs (including Compton-thick AGNs) in a standardopulation synthesis model gives much better agreement with the [O iii] λ5007 LF derived from the Sloan Digital Sky Survey thanreviously reported. This confirms that hard X-ray observations are a veryowerful tool to find AGNs with high completeness.

原文英語
文章編號1
期刊Astrophysical Journal
815
發行號1
DOIs
出版狀態已發佈 - 2015 十二月 10

ASJC Scopus subject areas

  • Astronomy and Astrophysics
  • Space and Planetary Science

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    Ueda, Y., Hashimoto, Y., Ichikawa, K., Ishino, Y., Kniazev, A. Y., Väisänen, P., Ricci, C., Berney, S., Gandhi, P., Koss, M., Mushotzky, R., Terashima, Y., Trakhtenbrot, B., & Crenshaw, M. (2015). λ5007 and X-RAY PROPERTIES of A COMPLETE SAMPLE of HARD X-RAY SELECTED AGNs in the LOCAL UNIVERSE. Astrophysical Journal, 815(1), [1]. https://doi.org/10.1088/0004-637X/815/1/1