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Unveiling the Nature of Type Ia Supernovae with Early-phase Photometry by Subaru/HSC

Research Project

Project/Area Number 19K23456
Research Category

Grant-in-Aid for Research Activity Start-up

Allocation TypeMulti-year Fund
Review Section 0204:Astronomy, earth and planetary science, and related fields
Research InstitutionThe University of Tokyo

Principal Investigator

Jiang Jian  東京大学, カブリ数物連携宇宙研究機構, 特任研究員 (00846503)

Project Period (FY) 2019-08-30 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
Fiscal Year 2020: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2019: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
KeywordsSupernova / Observation / Survey / Transient / Time-domain / Astronomy / Cosmology
Outline of Research at the Start

Although the type Ia supernova (SN Ia) have been applied as the cosmic distance indicator and helped us to discover the accelerating expansion of the Universe, their nature is still under debate. Given that observational information on SNe Ia soon after explosion is the best indicator of the origin of SNe Ia, we are carrying out a unique project that is optimized to study early-phase SNe Ia with the best survey facility in the world, the Hyper Suprime-Cam (HSC) mounted on the Subaru telescope. Breakthroughs on the long-standing issues of SNe Ia can be achieved with this innovative project.

Outline of Final Research Achievements

Our team carried out a series of observations with the 8.2m Subaru telescope from 2019 to 2021. Over 10 early-phase Type Ia supernovae (SNe Ia) have been discovered by Subaru/HSC and follow-up observations have been conducted for most of them by using various telescopes through domestic and international collaborations. On the other hand, another early-phase SN Ia that shows interesting features has been found by the Tomo-e Gozen transient survey. These early-phase SNe Ia helped us to further understand the explosion mechanism and progenitor system of specific SN Ia subclasses. In addition, a fast-evolving ultra-luminous transient, MUSSES2020J, has been discovered by our Subaru observation in 2020, which provides a unique opportunity of studying these rare and extreme astronomical phenomena in the universe. Three scientific papers based on the Subaru/HSC observations have already been published/accepted.

Academic Significance and Societal Importance of the Research Achievements

Ia型超新星は宇宙膨張測定に用いられてきているが、その起源はよくわかっていない。早期観測によって起源解明への重要な情報をえることができ、将来より高精度な宇宙膨張測定が可能になることが期待される。

Report

(4 results)
  • 2021 Annual Research Report   Final Research Report ( PDF )
  • 2020 Research-status Report
  • 2019 Research-status Report
  • Research Products

    (15 results)

All 2022 2021 2020 2019

All Journal Article (7 results) (of which Int'l Joint Research: 7 results,  Peer Reviewed: 7 results,  Open Access: 6 results) Presentation (8 results) (of which Int'l Joint Research: 4 results)

  • [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.
    • Journal Title

      Nature (in press)

      Volume: -

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [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.
    • Journal Title

      The Astrophysical Journal Letters

      Volume: 923 Issue: 1 Pages: L8-L8

    • DOI

      10.3847/2041-8213/ac375f

    • NAID

      120007177816

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [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.、et al.
    • Journal Title

      The Astrophysical Journal

      Volume: 912 Issue: 1 Pages: 30-30

    • DOI

      10.3847/1538-4357/abe765

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Constraints on the Rate of Supernovae Lasting for More Than a Year from Subaru/Hyper Suprime-Cam2021

    • Author(s)
      Moriya Takashi J.、Jiang Ji-an、Yasuda Naoki、Kokubo Mitsuru、Kawana Kojiro、Maeda Keiichi、Pan Yen-Chen、Quimby Robert M.、Suzuki Nao、Takahashi Ichiro、Tanaka Masaomi、Tominaga Nozomu、Nomoto Ken’ichi、Cooke Jeff、Galbany Lluis、Gonzalez-Gaitan Santiago、Lee Chien-Hsiu、Pignata Giuliano
    • Journal Title

      The Astrophysical Journal

      Volume: 908 Issue: 2 Pages: 249-249

    • DOI

      10.3847/1538-4357/abcfc0

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Rapidly Evolving Transients from the Hyper Suprime-Cam SSP Transient Survey2020

    • Author(s)
      Tampo Yusuke、Tanaka Masaomi、Maeda Keiichi、Yasuda Naoki、Tominaga Nozomu、Jiang Ji-an、Moriya Takashi J.、Morokuma Tomoki、Suzuki Nao、Takahashi Ichiro、Kokubo Mitsuru、Kawana Kojiro
    • Journal Title

      The Astrophysical Journal

      Volume: 894 Issue: 1 Pages: 27-46

    • DOI

      10.3847/1538-4357/ab7ccc

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] The HSC-SSP Transient Survey: Implications from Early Photometry and Rise Time of Normal Type Ia Supernovae2020

    • Author(s)
      Jiang Ji-an、Yasuda Naoki、Maeda Keiichi、Doi Mamoru、Shigeyama Toshikazu、Tominaga Nozomu、Tanaka Masaomi、Moriya Takashi J.、Takahashi Ichiro、Suzuki Nao、Morokuma Tomoki、Nomoto Ken’ichi
    • Journal Title

      The Astrophysical Journal

      Volume: 892 Issue: 1 Pages: 25-37

    • DOI

      10.3847/1538-4357/ab76cb

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] SN 2019ein: New Insights into the Similarities and Diversity among High-velocity Type Ia Supernovae2020

    • Author(s)
      Kawabata Miho、Maeda Keiichi、Yamanaka Masayuki、Nakaoka Tatsuya、Kawabata Koji S.、Adachi Ryo、Akitaya Hiroshi、Burgaz Umut、Hanayama Hidekazu、Horiuchi Takashi、Hosokawa Ryohei、Iida Kota、Imazato Fumiya、Isogai Keisuke、Jiang Ji-an、et al.
    • Journal Title

      The Astrophysical Journal

      Volume: 893 Issue: 2 Pages: 143-143

    • DOI

      10.3847/1538-4357/ab8236

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] Catching the Earliest Optical Emission of SN Ia 2020hvf with the Tomo-e Gozen Camera2021

    • Author(s)
      Ji-an Jiang
    • Organizer
      木曽シュミットシンポジウム 2021
    • Related Report
      2021 Annual Research Report
  • [Presentation] Catching the First Light of Type Ia Supernovae with HSC Deep Imaging Surveys2020

    • Author(s)
      Ji-an Jiang
    • Organizer
      HSC Seminars 2020
    • Related Report
      2020 Research-status Report
  • [Presentation] An Overview of Japanese Supernova Surveys2020

    • Author(s)
      Ji-an Jiang
    • Organizer
      Joint KIAA-IPMU online meeting
    • Related Report
      2020 Research-status Report
  • [Presentation] Unveiling the Nature of Type Ia Supernovae with Subaru/HSC Deep Imaging Surveys2019

    • Author(s)
      Ji-an Jiang
    • Organizer
      Subaru Telescope 20th Anniversary (The 7th Subaru International Conference)
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] Multiple Origins of Early-excess SNe Ia and Associated Subclasses2019

    • Author(s)
      Ji-an Jiang
    • Organizer
      Progenitors of Type Ia Supernovae
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] Multiple Origins of Early-excess SNe Ia and Associated Subclasses2019

    • Author(s)
      Ji-an Jiang
    • Organizer
      The Deaths and Afterlives of Stars
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] Unveiling the Nature of SNe Ia with Subaru/HSC Deep Imaging Surveys2019

    • Author(s)
      Ji-an Jiang
    • Organizer
      Cosmic Acceleration
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] Studying fast-brightening transients with the HSC-Tomo-e synergetic survey2019

    • Author(s)
      Ji-an Jiang
    • Organizer
      木曽シュミットシンポジウム2019 (Kiso Schmidt Symposium 2019)
    • Related Report
      2019 Research-status Report

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Published: 2019-09-03   Modified: 2023-01-30  

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