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A swift look at sn 2011fe: the earliest ultraviolet observations of a type ia supernova
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Gronwall, Caryl Siegel, Michael Mazzali, Paolo Oates, Samantha Brown, Peter J. DePasquale, Massimiliano Holland, Stephen Immler, Stefan Kuin, Paul Miline, Peter Dawson, Kyle S. |
| Copyright Year | 2012 |
| Description | We present the earliest ultraviolet (UV) observations of the bright Type Ia supernova SN 2011fe/PTF11kly in the nearby galaxy M101 at a distance of only 6.4 Mpc. It was discovered shortly after explosion by the Palomar Transient Factory and first observed by Swift/UVOT about a day after explosion. The early UV light is well-defined, with approx. 20 data points per filter in the 5 days after explosion. With these early UV observations, we extend the near-UV template of SNe Ia to earlier times for comparison with observations at low and high redshift and report fits from semiempirical models of the explosion. We find the early UV count rates to be well fit by the superposition of two parabolic curves. Finally, we use the early UV flux measurements to examine a possible shock interaction with a non-degenerate companion. We find that even a solar mass companion at a distance of a few solar radii is unlikely at more than 95% confidence. |
| File Size | 590090 |
| Page Count | 6 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_20120009384 |
| Archival Resource Key | ark:/13960/t89h0nc4p |
| Language | English |
| Publisher Date | 2012-01-01 |
| Access Restriction | Open |
| Subject Keyword | Astronomy Swift Observatory Red Shift Supernovae Spaceborne Astronomy Ultraviolet Astronomy Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Article |
