천문학회보 (The Bulletin of The Korean Astronomical Society)

한국천문학회 (The Korean Astronomical Society)
권호 표지

Variability study of AGN in NGC 4395

  • Cho, Hojin (Department of Physics and Astronomy, Seoul National University) ;
  • Woo, Jong-Hak (Department of Physics and Astronomy, Seoul National University) ;
  • Son, Donghoon (Department of Physics and Astronomy, Seoul National University) ;
  • Le, Huynh Anh (Department of Physics and Astronomy, Seoul National University) ;
  • Bae, Hyun-Jin (Department of Physics and Astronomy, Seoul National University) ;
  • Shin, Jaejin (Department of Physics and Astronomy, Seoul National University) ;
  • Park, Songyoun (Department of Physics and Astronomy, Seoul National University) ;
  • Cho, Wanjin (Department of Physics and Astronomy, Seoul National University) ;
  • Hodges-Kluck, Edmund (Department of Astronomy, University of Michigan) ;
  • Gallo, Ellena (Department of Astronomy, University of Michigan) ;
  • Kim, Minjin (Korea Astronomy and Space Science Institute) ;
  • Park, Daeseong (Korea Astronomy and Space Science Institute) ;
  • Sung, Hyun-il (Korea Astronomy and Space Science Institute) ;
  • Kim, Taewoo (National Youth Space Center) ;
  • Kang, Wonseok (National Youth Space Center)
  • 발행 : 2017.10.10
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초록

We present the preliminary results from our intensive monitoring campaign for measuring continuum and line variability of a low-mass Seyfert galaxy, NGC 4395, which host a smallest known AGN black hole in the reverberation mapping studies. We performed consecutive photometric observations during 5 nights in April 2017. Various telescopes in the world, including BOAO 1.8-m, NYSC 1-m, MDM 2.4-m, 1.3-m, etc, were dedicated for this campaign. Preliminary results show that the tentative time lag can be determined, which is approximately order of 1-2 hours.

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