Studying the environment of supernova explosion sites with narrow-band multi-color imaging

2017 Fiscal Year Final Research Report

• Project/Area Number: 26287029
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Partial Multi-year Fund
• Section: 一般
• Research Field: Astronomy
• Research Institution: The University of Tokyo
• Principal Investigator: Doi Mamoru 東京大学, 大学院理学系研究科(理学部), 教授 (00242090)
• Co-Investigator(Renkei-kenkyūsha): Sako Shigeyuki 東京大学, 大学院理学系研究科, 助教 (90533563) ; Morokuma Tomoki 東京大学, 大学院理学系研究科, 助教 (10594674)
• Research Collaborator: Takanashi Naohiro ; Kuncarayakti Hanindyo ; Hashiba Yasuhito ; Kokubo Mitsuru ; Mitsuda Kazuma ; Jiang Ji-an ; Sugai Hajime
• Project Period (FY): 2014-04-01 – 2017-03-31
• Keywords: 超新星 / 出現環境 / 可視同時撮像 / ダイクロイックミラー / 面分光

Outline of Final Research Achievements

We have studied explosion sites of supernovae observationally. We found that there are two groups of Type Ia supernovae (SNeIa) based on luminosity-color distributions, depending on their host properties (color). We also found a SNIa on a S0 galaxy, whose explosion was ignited with He detonation.
We have studied equivalent widths of Halpha and metalicity of explosion sites of Core Collapse SNe statistically. But we could not find significant differences amoung different types of SNe.
We updated a CCD of Kyoto3DII IFU spectrograph, and carried out spectroscopy of a host galaxy of a Fast Radio Burst. We also updated CCDs of a 15-band optical simultaneous imager DMC.

Free Research Field

光赤外線天文学・銀河天文学・観測的宇宙論