| 28 | 29 | Today, supernovae are discovered in imaging-based surveys and classified using follow-up spectroscopy. I will show how large-scale spectroscopic galaxy surveys, such as the Sloan Digital Sky Survey (SDSS), can be used to conduct spectroscopic supernova surveys. Using a code that detects and classifies supernovae buried in galaxy spectra, I have detected 90 Type Ia supernovae among ~700,000 galaxy spectra in the 7th SDSS Data Release, which I then used to measure rates and constrain this type of supernova's progenitor scenarios. The results of this survey add to a growing body of evidence that the progenitor is a binary system composed of two carbon-oxygen white dwarfs. |
