Study of the Dependence of the Plateau Shape for Type II Supernovae on Metallicityстатья
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Дата последнего поиска статьи во внешних источниках: 9 декабря 2020 г.
Аннотация:We consider the effect of a change in the rate of flux decline in the U band for type II-P supernovae (SNe IIP) as a function of metallicity Z. Based on this effect, we propose a new method to determine the photometric redshift from the SN IIP light curve in the U band. Using the STELLA code, we have constructed model light curves in different bands for different redshifts z=0, 0.1, and 0.3, as the metallicity in the models decreases from Z~10^{-3} to 10^{-6}. The flux in the U band is shown to reach a plateau at the lowest metallicities. We consider the influence of other parameters as well: the presupernova mass and the mass of radioactive nickel-56.