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2019 Fiscal Year Annual Research Report

Understanding the growth of low-mass black holes and its role in galaxy evolution

Research Project

Project/Area Number 17F17321
Research InstitutionKyoto University

Principal Investigator

上田 佳宏  京都大学, 理学研究科, 准教授 (10290876)

Co-Investigator(Kenkyū-buntansha) OH KYUSEOK  京都大学, 理学(系)研究科(研究院), 外国人特別研究員
Project Period (FY) 2017-11-10 – 2020-03-31
Keywordsブラックホール / 活動銀河核
Outline of Annual Research Achievements

The achievements made in the fiscal year of 2019 are summarized as follows: (1) several hundreds of a new and high-resolution optical / near-IR spectra, (2) presentation research at domestic / international conferences, and (3) a publication on the relationship between narrow emission-line ratio and AGN Eddington ratio.

(1) We obtained ~200 new optical spectra covering up to near-IR from Palomar, ESO VLT, and SOAR observatory. These new high-resolution spectra are a part of hard X-ray selected AGN, which are what we are currently doing a follow-up optical observations to measure black hole mass, emission-line strengths, and Eddington accretion rates. As a PI and co-I of successful observing programs since 2016, we have been working on observing proposal planning, design, phase 2, data reduction, and spectral line measurements. In addition to the other ~500 optical spectra obtained so far, we are covering complete set of optical spectra of local hard X-ray selected AGN (N~840).
(2) We have presented researches in the Korean Astronomical Society meeting (April, 2019) and carried research discussion at the collaboration meeting (ETH Zurich, June 2019). The presentation and discussion were about 1) the recent work about anti-correlation in AGN narrow emission-line ratio and Eddington accretion rate, and 2) a new method estimating / inferring galaxy and AGN spectral features, respectively.
(3) A new research work is published in the Astrophysical Journal. We investigated how AGN growth rate is related with narrow emission-line ratios in high-redshift.

Research Progress Status

令和元年度が最終年度であるため、記入しない。

Strategy for Future Research Activity

令和元年度が最終年度であるため、記入しない。

  • Research Products

    (5 results)

All 2019

All Journal Article (4 results) (of which Int'l Joint Research: 4 results,  Peer Reviewed: 4 results) Presentation (1 results)

  • [Journal Article] BAT AGN Spectroscopic Survey - XVII. The parsec-scale jet properties of the ultrahard X-ray-selected local AGNs2019

    • Author(s)
      Baek, J., (Oh, K., Ueda, Y.) et al.
    • Journal Title

      Monthly Notices of the Royal Astronomical Society

      Volume: 488 Pages: 4317-4328

    • DOI

      10.1093/mnras/stz1995

    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] BAT AGN Spectroscopic Survey. XVI. General Physical Characteristics of BAT Blazars2019

    • Author(s)
      Paliya, V. S., (Oh, K.) et al.
    • Journal Title

      The Astrophysical Journal

      Volume: 881 Pages: -

    • DOI

      10.3847/1538-4357/ab2f8b

    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] An observed link between AGN Eddington ratio and [NII]λ6583/Ha at 0.6<z<1.72019

    • Author(s)
      Oh, K., Ueda, Y. et al.
    • Journal Title

      The Astrophysics Journal

      Volume: 880 Pages: -

    • DOI

      10.3847/1538-4357/ab288b

    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] A Hard Look at NGC 5347: Revealing a Nearby Compton-thick AGN2019

    • Author(s)
      Kammoun, E. S., (Oh, K.) et al.
    • Journal Title

      The Astrophysical Journal

      Volume: 877 Pages: -

    • DOI

      10.3847/1538-4357/ab1c5f

    • Peer Reviewed / Int'l Joint Research
  • [Presentation] An observed link between λEdd and [NII]6583/Hα at 0.6<z<1.72019

    • Author(s)
      Oh, K., Ueda, Y. et al.
    • Organizer
      Korean Astronomical Society Meeting

URL: 

Published: 2021-01-27  

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