The Rate of Type Ia Supernovae in Nearby Dwarf Galaxies
نویسندگان
چکیده
We used the Robotic Optical Transient Search Experiment (ROTSE-III) astrophysical transient survey to determine the rate of type Ia supernovae (SNe Ia) in dwarf galaxies within a radius of 310 Mpc. The rate is inferred from the SNe Ia sample discovered by ROTSE-III and a Monte Carlo simulation that estimates the ROTSE-III SNe Ia detection efficiency. Assuming that the rate of SNe Ia is the same in high surface brightness galaxies and dwarf galaxies, we determined the SNe Ia rate in dwarf galaxies to be 0.017 −0.015 SNe Mpc −3century−1. The rate implies a luminosity density of dwarf galaxy and intergalactic stellar population of 9.44 −8.3× 10 LB, Mpc−3.
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تاریخ انتشار 2006