The Bulletin of The Korean Astronomical Society (천문학회보)

The Korean Astronomical Society (한국천문학회)
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Intensive Monitoring Survey of Nearby Galaxies

  • Im, Myungshin (Astronomy Program/CEOU, Dept. of Physics & Astronomy, Seoul National University) ;
  • Choi, Changsu (Astronomy Program/CEOU, Dept. of Physics & Astronomy, Seoul National University) ;
  • Lim, Gu (Astronomy Program/CEOU, Dept. of Physics & Astronomy, Seoul National University) ;
  • Lee, Sangyun (Astronomy Program/CEOU, Dept. of Physics & Astronomy, Seoul National University) ;
  • Yoon, Sung Chul (Astronomy Program/CEOU, Dept. of Physics & Astronomy, Seoul National University) ;
  • Chun, Sang Hyun (Astronomy Program/CEOU, Dept. of Physics & Astronomy, Seoul National University) ;
  • Yoon, Hyun-Il (Korea Astronomy & Space Science Institute) ;
  • Jeon, Yeong-Beaom (Korea Astronomy & Space Science Institute) ;
  • Lee, Sang Gak (National Youth Space Center) ;
  • Kang, Wonseok (National Youth Space Center) ;
  • Kwon, Sun-gil (National Youth Space Center) ;
  • Pak, Soojong (School of Space Research and Institute of Natural Sciences, Kyunghee University) ;
  • Eghamberdiev, Shuhrat (Ulugh Beg Astronomical Institute)
  • Published : 2016.10.12
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Abstract

SNe light curves have been used to understand the expansion history of the universe, and a lot of efforts have gone into understanding the overall shape of the radioactively powered light curve. However, we still have little direct observational evidence for the theorized SN progenitor systems. Recent studies suggest that the light curve of a supernova shortly after its explosion (< 1 day) contains valuable information about its progenitor system and can be used to set a limit on the progenitor size, R*. In order to catch the early light curve of SNe explosion and understand SNe progenitors, we are performing a ~8hr interval monitoring survey of nearby galaxies (d < 50 Mpc) with 1-m class telescopes around the world. Through this survey, we expect to catch the very early precursor emission as faint as R=21 mag (~0.1 Rsun for the progenitor). In this talk, we outline this project, and present a few scientific highlights, such as the early light curve of SN 2015F in NGC 2442.

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