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SOUSA: the Swift Optical/Ultraviolet Supernova Archive

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Abstract

The Ultra-Violet Optical Telescope on the Swift spacecraft has observed hundreds of supernovae, covering all major types and most subtypes. Here we introduce the Swift Optical/Ultraviolet Supernova Archive (SOUSA), which will contain all of the supernova images and photometry. We describe the observation and reduction procedures and how they impact the final data. We show photometry from well-observed examples of most supernova classes, whose absolute magnitudes and colors may be used to infer supernova types in the absence of a spectrum. A full understanding of the variety within classes and a robust photometric separation of the groups requires a larger sample, which will be provided by the final archive. The data from the existing Swift supernovae are also useful for planning future observations with Swift as well as future UV observatories.

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Notes

  1. http://swift.gsfc.nasa.gov/docs/swift/sne/swift_sn.html.

  2. http://swift.gsfc.nasa.gov/cgi-bin/sdc/ql?.

  3. http://heasarc.gsfc.nasa.gov/cgi-bin/W3Browse/swift.pl.

  4. See http://archive.stsci.edu/swiftuvot/file_formats.html for a more detailed description.

  5. http://heasarc.gsfc.nasa.gov/docs/heasarc/caldb/swift/docs/uvot/uvotcaldb_throughput_02b.pdf.

  6. http://swift.gsfc.nasa.gov/analysis/uvot_digest/timing.html.

  7. See Fig. 6 in http://archive.stsci.edu/pub/hlsp/stisngsl/aaareadme.pdf.

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Acknowledgements

We wish to thank the many members of the Swift team who respond to and schedule our many SN requests, sometimes at very inconvenient times. We are also grateful to the many different groups who discover SNe and announce them to the world so we can follow them up in the UV. SOUSA is supported by NASA’s Astrophysics Data Analysis Program through grant NNX13AF35G.

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Correspondence to Peter J. Brown.

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Brown, P.J., Breeveld, A.A., Holland, S. et al. SOUSA: the Swift Optical/Ultraviolet Supernova Archive. Astrophys Space Sci 354, 89–96 (2014). https://doi.org/10.1007/s10509-014-2059-8

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  • DOI: https://doi.org/10.1007/s10509-014-2059-8

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