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http://dx.doi.org/10.5303/JKAS.2019.52.1.11

INTENSIVE MONITORING SURVEY OF NEARBY GALAXIES (IMSNG)  

Im, Myungshin (Center for the Exploration of the Origin of the Universe, Department of Physics and Astronomy, Seoul National University)
Choi, Changsu (Center for the Exploration of the Origin of the Universe, Department of Physics and Astronomy, Seoul National University)
Hwang, Sungyong (Center for the Exploration of the Origin of the Universe, Department of Physics and Astronomy, Seoul National University)
Lim, Gu (Center for the Exploration of the Origin of the Universe, Department of Physics and Astronomy, Seoul National University)
Kim, Joonho (Center for the Exploration of the Origin of the Universe, Department of Physics and Astronomy, Seoul National University)
Kim, Sophia (Center for the Exploration of the Origin of the Universe, Department of Physics and Astronomy, Seoul National University)
Paek, Gregory S.H. (Center for the Exploration of the Origin of the Universe, Department of Physics and Astronomy, Seoul National University)
Lee, Sang-Yun (Center for the Exploration of the Origin of the Universe, Department of Physics and Astronomy, Seoul National University)
Yoon, Sung-Chul (Astronomy Program, Department of Physics and Astronomy, Seoul National University)
Jung, Hyunjin (Department of Physics, Pohang University of Science and Technology)
Sung, Hyun-Il (Korea Astronomy and Space Science Institute)
Jeon, Yeong-beom (Korea Astronomy and Space Science Institute)
Ehgamberdiev, Shuhrat (Ulugh Beg Astronomical Institute, Uzbek Academy of Sciences)
Burhonov, Otabek (Ulugh Beg Astronomical Institute, Uzbek Academy of Sciences)
Milzaqulov, Davron (Ulugh Beg Astronomical Institute, Uzbek Academy of Sciences)
Parmonov, Omon (Ulugh Beg Astronomical Institute, Uzbek Academy of Sciences)
Lee, Sang Gak (Astronomy Program, Department of Physics and Astronomy, Seoul National University)
Kang, Wonseok (National Youth Space Center)
Kim, Taewoo (National Youth Space Center)
Kwon, Sun-gill (National Youth Space Center)
Pak, Soojong (Center for the Exploration of the Origin of the Universe, Department of Physics and Astronomy, Seoul National University)
Ji, Tae-Geun (Center for the Exploration of the Origin of the Universe, Department of Physics and Astronomy, Seoul National University)
Lee, Hye-In (Center for the Exploration of the Origin of the Universe, Department of Physics and Astronomy, Seoul National University)
Park, Woojin (Center for the Exploration of the Origin of the Universe, Department of Physics and Astronomy, Seoul National University)
Ahn, Hojae (Department of Astronomy and Space Science, Kyung Hee University)
Byeon, Seoyeon (Department of Astronomy and Space Science, Kyung Hee University)
Han, Jimin (Department of Astronomy and Space Science, Kyung Hee University)
Gibson, Coyne (McDonald Observatory, The University of Texas at Austin)
Wheeler, J. Craig (McDonald Observatory, The University of Texas at Austin)
Kuehne, John (McDonald Observatory, The University of Texas at Austin)
Johns-Krull, Chris (Department of Physics & Astronomy, Rice University)
Marshall, Jennifer (Mitchell Institute for Fundamental Physics and Astronomy and Department of Physics and Astronomy, Texas A&M University)
Hyun, Minhee (Center for the Exploration of the Origin of the Universe, Department of Physics and Astronomy, Seoul National University)
Lee, Seong-Kook J. (Center for the Exploration of the Origin of the Universe, Department of Physics and Astronomy, Seoul National University)
Kim, Yongjung (Center for the Exploration of the Origin of the Universe, Department of Physics and Astronomy, Seoul National University)
Yoon, Yongmin (Center for the Exploration of the Origin of the Universe, Department of Physics and Astronomy, Seoul National University)
Paek, Insu (Center for the Exploration of the Origin of the Universe, Department of Physics and Astronomy, Seoul National University)
Shin, Suhyun (Center for the Exploration of the Origin of the Universe, Department of Physics and Astronomy, Seoul National University)
Taak, Yoon Chan (Center for the Exploration of the Origin of the Universe, Department of Physics and Astronomy, Seoul National University)
Kang, Juhyung (Astronomy Program, Department of Physics and Astronomy, Seoul National University)
Choi, Seoyeon (Center for the Exploration of the Origin of the Universe, Department of Physics and Astronomy, Seoul National University)
Jeong, Mankeun (Astronomy Program, Department of Physics and Astronomy, Seoul National University)
Jung, Moo-Keon (Astronomy Program, Department of Physics and Astronomy, Seoul National University)
Kim, Hwara (Department of Earth Science Education, Seoul National University)
Kim, Jisu (Department of Astronomy and Space Science, Kyung Hee University)
Lee, Dayae (Department of Astronomy, Yonsei University)
Park, Bomi (Center for the Exploration of the Origin of the Universe, Department of Physics and Astronomy, Seoul National University)
Park, Keunwoo (Department of Astronomy and Space Science, Sejong University)
O, Seong A (Astronomy Program, Department of Physics and Astronomy, Seoul National University)
Publication Information
Journal of The Korean Astronomical Society / v.52, no.1, 2019 , pp. 11-21 More about this Journal
Abstract
Intensive Monitoring Survey of Nearby Galaxies (IMSNG) is a high cadence observation program monitoring nearby galaxies with high probabilities of hosting supernovae (SNe). IMSNG aims to constrain the SN explosion mechanism by inferring sizes of SN progenitor systems through the detection of the shock-heated emission that lasts less than a few days after the SN explosion. To catch the signal, IMSNG utilizes a network of 0.5-m to 1-m class telescopes around the world and monitors the images of 60 nearby galaxies at distances D < 50 Mpc to a cadence as short as a few hours. The target galaxies are bright in near-ultraviolet (NUV) with $M_{NUV}$ < -18.4 AB mag and have high probabilities of hosting SNe ($0.06SN\;yr^{-1}$ per galaxy). With this strategy, we expect to detect the early light curves of 3.4 SNe per year to a depth of R ~ 19.5 mag, enabling us to detect the shock-heated emission from a progenitor star with a radius as small as $0.1R_{\odot}$. The accumulated data will be also useful for studying faint features around the target galaxies and other science projects. So far, 18 SNe have occurred in our target fields (16 in IMSNG galaxies) over 5 years, confirming our SN rate estimate of $0.06SN\;yr^{-1}$ per galaxy.
Keywords
surveys; techniques: photometric; supernovae: general;
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