Other
Scientific paper
Jan 2010
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010aas...21543026p&link_type=abstract
American Astronomical Society, AAS Meeting #215, #430.26; Bulletin of the American Astronomical Society, Vol. 42, p.360
Other
Scientific paper
We present the UV and optical properties of the Type-IIn supernovae 2007pk. UV and optical observations using Swift's UV/Optical Telescope began approximately 5 days after explosion. The supernova is observed post peak in the UV and exhibits a linear decay while the optical is detected approximately 8 days before v-band peak and exhibits a very shallow decay. A series of optical/near-IR spectra taken with the Hobby-Eberly Telescope show spectra highly similar to that of the well-studied SN 1998S, while a Swift u-grism spectrum shows a strong blue-continuum with weak emission lines. The emission from 2007pk falls below detection approximately 20 days after explosion in the UV and 50 in the optical showing no sign of the long duration emission of other Type-IIn supernovae such as 2005ip. We estimate the mass loss rate of 2007pk and compare with 2005ip's at late time to examine the observational differences between Type-IIn supernovae with and without late time emission.
Kuin Paul N. M.
Pritchard Tyler A.
Roming Peter W. A.
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