2021 Fiscal Year Annual Research Report
Unveiling the Nature of Type Ia Supernovae with Early-phase Photometry by Subaru/HSC
| Project/Area Number |
19K23456
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| Research Institution | The University of Tokyo |
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Principal Investigator |
姜 継安 東京大学, カブリ数物連携宇宙研究機構, 特任研究員 (00846503)
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| Project Period (FY) |
2019-08-30 – 2022-03-31
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| Keywords | Supernova / Observation / Survey / Transient / Time-domain |
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| Outline of Annual Research Achievements |
A series of optical observations were carried out with Japanese wide-field survey facilities (e.g., Subaru/HSC, Kiso/Tomo-e) in FY2021. A dozen of early-phase supernovae have been discovered and follow-up observations have been carried out via international collaborations successfully.
With a promising number of early-phase Type Ia supernovae discovered in FY2021, the long-standing progenitor and explosion issues of Type Ia supernovae can be further investigated. Moreover, interesting transients other than early-phase supernovae have also been discovered. Scientific papers focusing on different transients were published, submitted or in preparation in FY2021.
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Research Products
(4 results)
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[Journal Article] A repeating fast radio burst associated with a persistent radio source2022
Author(s)
C.-H. Niu, K. Aggarwal, D. Li, X. Zhang, S. Chatterjee, C.-W. Tsai, W. Yu, C. J. Law, S. Burke-Spolaor, J. M. Cordes, Y.-K. Zhang, S. Ocker, J.-M. Yao, P. Wang, Y. Feng, Y. Niino, C. Bochenek, M. Cruces, L. Connor, J.-A. Jiang, et al.
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Journal Title
Nature (in press)
Volume: -
Pages: -
Peer Reviewed / Int'l Joint Research
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[Journal Article] Discovery of the Fastest Early Optical Emission from Overluminous SN Ia 2020hvf: A Thermonuclear Explosion within a Dense Circumstellar Environment2021
Author(s)
Jiang Ji-an, Maeda Keiichi, Kawabata Miho, Doi Mamoru, Shigeyama Toshikazu, Tanaka Masaomi, Tominaga Nozomu, Nomoto Ken’ichi, Niino Yuu, Sako Shigeyuki, Ohsawa Ryou, Schramm Malte, Yamanaka Masayuki, Kobayashi Naoto, Takahashi Hidenori, et al.
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Journal Title
The Astrophysical Journal Letters
Volume: 923
Pages: L8～L8
DOI
Peer Reviewed / Open Access
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[Journal Article] Calcium-rich Transient SN 2019ehk in a Star-forming Environment: Yet Another Candidate for a Precursor of a Double Neutron-star Binary2021
Author(s)
Nakaoka Tatsuya, Maeda Keiichi, Yamanaka Masayuki, Tanaka Masaomi, Kawabata Miho, Moriya Takashi J., Kawabata Koji S., Tominaga Nozomu, Takagi Kengo, Imazato Fumiya, Morokuma Tomoki, Sako Shigeyuki, Ohsawa Ryou, Nagao Takashi, Jiang Ji-an, et al.
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Journal Title
The Astrophysical Journal
Volume: 912
Pages: 30～30
DOI
Peer Reviewed / Open Access
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