Rapidly Evolving And Luminous Transients From Pan-STARRS1
dc.contributor.utaustinauthor | Marion, G. H. | en_US |
dc.creator | Drout, M. R. | en_US |
dc.creator | Chornock, Ryan | en_US |
dc.creator | Soderberg, Alicia M. | en_US |
dc.creator | Sanders, N. E. | en_US |
dc.creator | McKinnon, R. | en_US |
dc.creator | Rest, A. | en_US |
dc.creator | Foley, Ryan J. | en_US |
dc.creator | Milisavljevic, Dan | en_US |
dc.creator | Margutti, R. | en_US |
dc.creator | Berger, E. | en_US |
dc.creator | Calkins, M. | en_US |
dc.creator | Fong, W. | en_US |
dc.creator | Gezari, S. | en_US |
dc.creator | Huber, M. E. | en_US |
dc.creator | Kankare, E. | en_US |
dc.creator | Kirshner, Robert P. | en_US |
dc.creator | Leibler, C. | en_US |
dc.creator | Lunnan, R. | en_US |
dc.creator | Mattila, S. | en_US |
dc.creator | Marion, G. H. | en_US |
dc.creator | Narayan, G. | en_US |
dc.creator | Riess, Adam G. | en_US |
dc.creator | Roth, K. C. | en_US |
dc.creator | Scolnic, D. | en_US |
dc.creator | Smartt, S. J. | en_US |
dc.creator | Tonry, J. L. | en_US |
dc.creator | Burgett, W. S. | en_US |
dc.creator | Chambers, K. C. | en_US |
dc.creator | Hodapp, K. W. | en_US |
dc.creator | Jedicke, R. | en_US |
dc.creator | Kaiser, N. | en_US |
dc.creator | Magnier, E. A. | en_US |
dc.creator | Metcalfe, N. | en_US |
dc.creator | Morgan, J. S. | en_US |
dc.creator | Price, P. A. | en_US |
dc.creator | Waters, C. | en_US |
dc.date.accessioned | 2016-04-28T19:33:03Z | |
dc.date.available | 2016-04-28T19:33:03Z | |
dc.date.issued | 2014-10 | en |
dc.description.abstract | In the past decade, several rapidly evolving transients have been discovered whose timescales and luminosities are not easily explained by traditional supernovae (SNe) models. The sample size of these objects has remained small due, at least in part, to the challenges of detecting short timescale transients with traditional survey cadences. Here we present the results from a search within the Pan-STARRS1 Medium Deep Survey (PS1-MDS) for rapidly evolving and luminous transients. We identify 10 new transients with a time above half-maximum (t(1/2)) of less than 12 days and -16.5 > M> -20 mag. This increases the number of known events in this region of SN phase space by roughly a factor of three. The median redshift of the PS1-MDS sample is z = 0.275 and they all exploded in star-forming galaxies. In general, the transients possess faster rise than decline timescale and blue colors at maximum light (g(P1) - r(P1) less than or similar to -0.2). Best-fit blackbodies reveal photospheric temperatures/radii that expand/cool with time and explosion spectra taken near maximum light are dominated by a blue continuum, consistent with a hot, optically thick, ejecta. We find it difficult to reconcile the short timescale, high peak luminosity (L> 10(43) erg s(-1)), and lack of UV line blanketing observed in many of these transients with an explosion powered mainly by the radioactive decay of56Ni. Rather, we find that many are consistent with either (1) cooling envelope emission from the explosion of a star with a low-mass extended envelope that ejected very little (<0.03 M-circle dot) radioactive material, or (2) a shock breakout within a dense, optically thick, wind surrounding the progenitor star. After calculating the detection efficiency for objects with rapid timescales in the PS1-MDS we find a volumetric rate of 4800-8000 events yr(-1) Gpc(-3) (4%-7% of the core-collapse SN rate at z = 0.2). | en_US |
dc.description.department | Astronomy | en_US |
dc.description.sponsorship | NSF through a Graduate Research Fellowship | en_US |
dc.description.sponsorship | David and Lucile Packard Foundation Fellowship for Science and Engineering | en_US |
dc.description.sponsorship | Jenny and Antti Wihuri Foundation | en_US |
dc.description.sponsorship | European Research Council under the European Union 291222 | en_US |
dc.description.sponsorship | National Aeronautics and Space Administration NNX08AR22G | en_US |
dc.description.sponsorship | Planetary Science Division of the NASA Science Mission Directorate, the National Science Foundation AST-1238877 | en_US |
dc.description.sponsorship | University of Maryland | en_US |
dc.description.sponsorship | Eotvos Lorand University (ELTE) | en_US |
dc.description.sponsorship | Gemini Observatory GN-2011B-Q-3, GS-2012A-Q-31 | en_US |
dc.identifier | doi:10.15781/T2XB8X | |
dc.identifier.Filename | 2014_10_starrs1.pdf | en_US |
dc.identifier.citation | Drout, M. R., R. Chornock, A. M. Soderberg, N. E. Sanders, R. McKinnon, A. Rest, R. J. Foley et al. "Rapidly Evolving and Luminous Transients from Pan-STARRS1." The Astrophysical Journal, Vol. 794, No. 1 (Oct., 2014): 23. | en_US |
dc.identifier.doi | 10.1088/0004637x/794/1/23 | en_US |
dc.identifier.issn | 0004-637X | en_US |
dc.identifier.uri | http://hdl.handle.net/2152/34711 | |
dc.language.iso | English | en_US |
dc.relation.ispartof | en_US | |
dc.relation.ispartofserial | Astrophysical Journal | en_US |
dc.rights | Administrative deposit of works to Texas ScholarWorks: This works author(s) is or was a University faculty member, student or staff member; this article is already available through open access or the publisher allows a PDF version of the article to be freely posted online. The library makes the deposit as a matter of fair use (for scholarly, educational, and research purposes), and to preserve the work and further secure public access to the works of the University. | en_US |
dc.rights.restriction | Open | en_US |
dc.subject | supernovae: general | en_US |
dc.subject | gamma-ray bursts | en_US |
dc.subject | core-collapse supernovae | en_US |
dc.subject | mass-metallicity relation | en_US |
dc.subject | digital sky survey | en_US |
dc.subject | multiband light curves | en_US |
dc.subject | star-forming galaxies | en_US |
dc.subject | host | en_US |
dc.subject | galaxies | en_US |
dc.subject | ia supernovae | en_US |
dc.subject | shock breakout | en_US |
dc.subject | ic supernova | en_US |
dc.subject | astronomy & astrophysics | en_US |
dc.title | Rapidly Evolving And Luminous Transients From Pan-STARRS1 | en_US |
dc.type | Article | en_US |