The Mount Stromlo Abell Cluster Supernova Search has been in operation for 1-1/2 years and has been successful in discovering 20 supernovae (SNe) to date. Once a large enough sample is gathered, we expect to be able to estimate the SN luminosity function and rate (in clusters and in the field) and to compare the effect of host galaxy type on SN characteristics. We also plan to compare the SN Ia distances derived for several clusters to those measured by Lauer and Postman (1994) using brightest cluster galaxy (BCG) distances, and to discuss the implications for the measurement of the reflex motion of the Local Group (LG) with respect to Abell clusters using SNe Ia and/or BCG. We present preliminary results from the volume-limited sample of SNe obtained during the first year of the search, including light curves, spectra, distances, and interesting objects. In addition, we discuss preliminary estimates of the SN rate and luminosity function.
American Astronomical Society Meeting Abstracts
- Pub Date:
- December 1997