Welcome to the new version of CaltechAUTHORS. Login is currently restricted to library staff. If you notice any issues, please email coda@library.caltech.edu
Published December 1, 2013 | Published + Submitted
Journal Article Open

A Plausible (Overlooked) Super-luminous Supernova in the Sloan Digital Sky Survey Stripe 82 Data


We present the discovery of a plausible super-luminous supernova (SLSN), found in the archival data of Sloan Digital Sky Survey (SDSS) Stripe 82, called PSN 000123+000504. The supernova (SN) peaked at m_g < 19.4 mag in the second half of 2005 September, but was missed by the real-time SN hunt. The observed part of the light curve (17 epochs) showed that the rise to the maximum took over 30 days, while the decline time lasted at least 70 days (observed frame), closely resembling other SLSNe of SN 2007bi type. The spectrum of the host galaxy reveals a redshift of z = 0.281 and the distance modulus of μ = 40.77 mag. Combining this information with the SDSS photometry, we found the host galaxy to be an LMC-like irregular dwarf galaxy with an absolute magnitude of M_B = –18.2 ± 0.2 mag and an oxygen abundance of 12+log[O/H]=8.3 ± 0.2; hence, the SN peaked at M_g < –21.3 mag. Our SLSN follows the relation for the most energetic/super-luminous SNe exploding in low-metallicity environments, but we found no clear evidence for SLSNe to explode in low-luminosity (dwarf) galaxies only. The available information on the PSN 000123+000504 light curve suggests the magnetar-powered model as a likely scenario of this event. This SLSN is a new addition to a quickly growing family of super-luminous SNe.

Additional Information

© 2013 American Astronomical Society. Received 2013 July 23; accepted 2013 October 19; published 2013 November 13. Based in part on the data obtained at the W. M. Keck Observatory, which is operated as a scientific partnership among the California Institute of Technology, the University of California, and the National Aeronautics and Space Administration. The Observatory was made possible by the generous financial support of the W. M. Keck Foundation. Z.K.R. is supported from grant 2011/01/N/ST9/03069 by the Polish National Science Centre. S.K. is supported from (FP7/2007-2013)/ERC grant agreement No. 246678 awarded by the European Research Council under the European Community's Seventh Framework Programme to the OGLE project. Ł.W. acknowledges support from the "Ideas Plus" grant No. IdP2012 000162 by the Polish Ministry of Science and Higher Education. S.G.D. and A.A.M. were supported in part by the NSF grant AST-0909182.

Attached Files

Published - 0004-637X_778_2_168.pdf

Submitted - 1308.2065v2.pdf


Files (953.6 kB)
Name Size Download all
359.0 kB Preview Download
594.5 kB Preview Download

Additional details

August 22, 2023
October 25, 2023