Simulation of multicolor light curves and spectra for the first supernovae in the Universe: from superluminous to faint supernovae

2017 Fiscal Year Final Research Report

• Project/Area Number: 16K17658
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Astronomy
• Research Institution: The University of Tokyo
• Principal Investigator: TOLSTOV ALEXEY 東京大学, カブリ数物連携宇宙研究機構, 特任研究員 (30729546)
• Project Period (FY): 2016-04-01 – 2018-03-31
• Keywords: First supernovae / superluminous supernovae / photometry / identification / detectability

Outline of Final Research Achievements

Recent theoretical studies show that Pop III and metal-poor supernovae (SNe) will be visible in the NIR and optical bands for z ~ 0.01 - 30 by many current and future surveys: WISH, WFIRST, JWST, PTF, Pan-STARRS, LSST. The main purpose of this research is to calculate light curve and spectra templates that are in demand for finding and fast identification of first SNe. The observation of Pop III SNe is a potential to directly probe the properties of the first stars, which are the key to the formation of primitive galaxies, early cosmological reionization and chemical enrichment, and the origin of supermassive black holes. In accordance with the purpose of research multicolor light curves for a number of metal-free core-collapse SN models have been calculated. It was found that color evolution of the plateau phase is helpful for identification of zero- and low- metallicity SNe by current and future transient surveys.

Free Research Field

天文学