천문학회보 (The Bulletin of The Korean Astronomical Society)

한국천문학회 (The Korean Astronomical Society)
권호 표지

Intensive Monitoring Survey of Nearby Galaxies (IMSNG) : On the progenitor system of Type Ia SN 2018kp

  • Choi, Changsu (Center of the Exploration of the Origin of the Universe, Department of Physics & Astronomy, Seoul National University) ;
  • Im, Myungshin (Center of the Exploration of the Origin of the Universe, Department of Physics & Astronomy, Seoul National University) ;
  • Kim, Dohyeong (Astronomy Program, Department of Physics & Astronomy, Seoul National University) ;
  • Lim, Gu (Center of the Exploration of the Origin of the Universe, Department of Physics & Astronomy, Seoul National University) ;
  • Paek, Gregory S.H. (Center of the Exploration of the Origin of the Universe, Department of Physics & Astronomy, Seoul National University) ;
  • Kim, Sophia (Center of the Exploration of the Origin of the Universe, Department of Physics & Astronomy, Seoul National University) ;
  • Hwang, Sungyong (Center of the Exploration of the Origin of the Universe, Department of Physics & Astronomy, Seoul National University)
  • 발행 : 2020.10.13
PDF 다운로드
⟨ 이전 논문 다음 논문 ⟩

초록

Intensive Monitoring Survey of Nearby Galaxies (IMSNG) has been managed over 6 years. It aimed to constrain the progenitor system and explosion mechanism of SNe by detection of very early signal from shock heated emission. We have conducted monitoring observation of nearby bright galaxies those were carefully selected using global network of 1-m class telescopes. More than 20 SNe have occured in our target fields. As One of result of the survey, we present light curve analysis of type Ia SN 2018kp, which was discovered in NGC 3367. Based on photometric analysis, we calculated explosion parameters and set constraints of physical conditions of this supernova. We compared the results with theoretical model progenitor systems to find out which scenario is the most fitted to SN 2018kp case. Moreover, we estimate the distance to the galaxy and look into the relation between SNe and galactic physical parameters.

키워드