マグネター駆動型超新星爆発の研究

• Project/Area Number: 18J21778
• Research Category: Grant-in-Aid for JSPS Fellows
• Allocation Type: Single-year Grants
• Section: 国内
• Research Field: Particle/Nuclear/Cosmic ray/Astro physics
• Research Institution: The University of Tokyo
• Principal Investigator: OMAND CONOR 東京大学, 理学系研究科, 特別研究員(DC1)
• Project Period (FY): 2018-04-25 – 2021-03-31
• Project Status: Completed (Fiscal Year 2020)
• Budget Amount: ¥2,800,000 (Direct Cost: ¥2,800,000); Fiscal Year 2020: ¥900,000 (Direct Cost: ¥900,000); Fiscal Year 2019: ¥900,000 (Direct Cost: ¥900,000); Fiscal Year 2018: ¥1,000,000 (Direct Cost: ¥1,000,000)
• Keywords: Magnetar / Pulsar / Pulsar Wind Nebula / Radio Emission / Supernova / Superluminous Supernova / Fast Radio Burst / Spectroscopy / Spectra / Dust / Radio / Submillimetre / Non-thermal emission

Outline of Annual Research Achievements

I joined a new collaboration which was doing a large radio survey of superluminous supernova (SLSN) remanants. I wrote a comparison between my method and their method of determining pulsar parameters from optical light curves, and altered my code to generate radio light curves in a consistent way. We published the survey results and pulsar constraints, and found that the model, with the assumptions we are currently using, is inconsistent with several supernovae.
I continued working on code for determining optical spectra, but decided to collaborate with a group that has already developed similar code. We are modeling these spectra now.
I wrote my PhD thesis and graduated.

Research Progress Status

令和2年度が最終年度であるため、記入しない。

Strategy for Future Research Activity

令和2年度が最終年度であるため、記入しない。

Research Products

• [Journal Article] Late-Time Radio and Millimeter Observations of Superluminous Supernovae and Long Gamma Ray Bursts: Implications for Obscured Star Formation, Central Engines, and Fast Radio Bursts (2021)
  • Author(s): Eftekhari, T.; Margalit, B.; Omand, C. M. B.; Berger, E.; Blanchard, P. K.; Demorest, P.; Metzger, B. D.; Murase, K.; Nicholl, M.; Villar, V. A.; Williams, P. K. G.; Alexander, K. D.; Chatterjee, S.; Coppejans, D. L.; Cordes, J. M.; Gomez, S.; Hosseinzadeh, G.; Hsu, B.; Kashiyama, K.; Margutti, R. Yin, Y.
  • Journal Title: Astrophysical Journal Volume: (Accepted)
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] A Search for Late-time Radio Emission and Fast Radio Bursts from Superluminous Supernovae (2019)
  • Author(s): Law C. J.、Omand C. M. B.、Kashiyama K.、Murase K.、Bower G. C.、Aggarwal K.、Burke-Spolaor S.、Butler B. J.、Demorest P.、Lazio T. J. W.、Linford J.、Tendulkar S. P.、Rupen M. P.
  • Journal Title: The Astrophysical Journal Volume: 886 Issue: 1 Pages: 24-24
  • DOI: 10.3847/1538-4357/ab4adb
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Dust formation in embryonic pulsar-aided supernova remnants (2019)
  • Author(s): Omand Conor M B、Kashiyama Kazumi、Murase Kohta
  • Journal Title: Monthly Notices of the Royal Astronomical Society Volume: 484 Issue: 4 Pages: 5468-5483
  • DOI: 10.1093/mnras/stz371
  • Peer Reviewed / Int'l Joint Research
• [Presentation] Broadband Constraints on the Pulsar-Driven Supernova Model (2019)
  • Author(s): Omand Conor
  • Organizer: Invited Seminar - Ochanomizu University
  • Invited
• [Presentation] Broadband Constraints on the Pulsar-Driven Supernova Model (2019)
  • Author(s): Omand Conor
  • Organizer: Invited Seminar - RIKEN
  • Invited
• [Presentation] Radio and Submillimetre Constraints on the Pulsar-Driven Supernova Model (2019)
  • Author(s): Omand Conor
  • Organizer: Multimessenger Astrophysics in the Gravitational Wave Era
• [Presentation] Radio and Submillimetre Constraints on the Pulsar-Driven Supernova Model (2019)
  • Author(s): Omand Conor
  • Organizer: Autumn Annual Meeting of the Astronomical Society of Japan
• [Presentation] Radio and Submillimetre Constraints on the Pulsar-Driven Supernova Model (2019)
  • Author(s): Omand Conor
  • Organizer: RESCEU Summer School
• [Presentation] Radio and Submillimetre Constraints on the Pulsar-Driven Supernova Model (2019)
  • Author(s): Omand Conor
  • Organizer: High Energy Astrophysics Japan Israel Workshop
• [Presentation] Radio and Submillimetre Constraints on the Pulsar-Driven Supernova Model (2019)
  • Author(s): Omand Conor
  • Organizer: Fifty-One Ergs
• [Presentation] Dust Formation and Emission from Pulsar-Aided Supernova Remnants (2019)
  • Author(s): Conor Omand
  • Organizer: 10th DTA Symposium
• [Presentation] Non-thermal Signals from Embryonic Supernova Remnants (2018)
  • Author(s): Conor Omand
  • Organizer: Annual Japanese Theoretical Astrophysics Symposium
• [Presentation] Non-thermal Signals from Embryonic Supernova Remnants (2018)
  • Author(s): Conor Omand
  • Organizer: Annual Japanese High-Energy Astrophyics Conference,
• [Presentation] Dust Formation and Emission from Pulsar-Aided Supernovae (2018)
  • Author(s): Conor Omand
  • Organizer: RESCEU Summer School
• [Presentation] Dust Formation and Emission from Pulsar-Aided Supernovae (2018)
  • Author(s): Conor Omand
  • Organizer: Jets and Shock Breakouts in Cosmic Transients