Other
Scientific paper
Jan 2009
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009aas...21343813s&link_type=abstract
American Astronomical Society, AAS Meeting #213, #438.13; Bulletin of the American Astronomical Society, Vol. 41, p.312
Other
Scientific paper
Berkeley SuperNova Ia Program (BSNIP) has been observing nearby (z < 0.1) Type Ia supernovae (SNe Ia) both photometrically and spectroscopically for two decades. Using telescopes at both Lick and Keck Observatories, we have amassed an extensive collection of well-sampled optical light curves with complementary spectra covering, on average, 3400-10,000 Å. About 70% of the objects for which we have light curves were discovered (and often followed photometrically) using the 0.76-m Katzman Automatic Imaging Telescope (KAIT) at Lick Observatory. In addition, about 40% of the SNe for which we only have spectra and about 72% of the SNe for which we have both photometry and spectroscopy were discovered by KAIT.
Through 2006, we have obtained nearly 600 spectra of more than 200 SNe Ia with light-curve information. We also have densely sampled multi-color light curves of 118 SNe Ia and unfiltered light curves of at least 185 other SNe Ia. This sample represents a >50% increase in the number of published low-z SN Ia spectra and will triple the current sample of published low-z SN Ia light curves. Moreover our entire set of well over 1000 spectra representing more than 400 different SNe Ia will not only double the number of published low-z SNe Ia spectra, but will also quadruple the number of low-z SNe Ia that have published spectra. Its sheer size, along with the uniform nature of the observations and data reduction, set this dataset apart from any other SN Ia dataset published thus far.
Here we present some of the data obtained between 1986 and 2006, as well as a summary of the contents of the entire dataset. Initial analysis, along with the entire dataset itself, will be published in the coming year.
We gratefully acknowledge the financial support of NSF grant AST-0607485 and the TABASGO Foundation.
Chornock Ryan
Filippenko Alexei V.
Foley Ryan J.
Ganeshalingam Mohan
Li Wangrong
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