dc.contributor.author | Chornock, Ryan T. | |
dc.contributor.author | Berger, Edo | |
dc.contributor.author | Rest, A. | |
dc.contributor.author | Milisavljevic, Danny | |
dc.contributor.author | Lunnan, Ragnhild | |
dc.contributor.author | Foley, R. J. | |
dc.contributor.author | Soderberg, Alicia M. | |
dc.contributor.author | Smartt, S. J. | |
dc.contributor.author | Burgasser, A. J. | |
dc.contributor.author | Challis, Peter M. | |
dc.contributor.author | Chomiuk, L. | |
dc.contributor.author | Czekala, Ian Philip | |
dc.contributor.author | Drout, Maria Rebecca | |
dc.contributor.author | Fong, Wen-fai | |
dc.contributor.author | Huber, M. E. | |
dc.contributor.author | Kirshner, Robert P. | |
dc.contributor.author | Leibler, C. | |
dc.contributor.author | McLeod, Brian A. | |
dc.contributor.author | Marion, G. H. | |
dc.contributor.author | Narayan, Gautham Siddharth | |
dc.contributor.author | Riess, A. G. | |
dc.contributor.author | Roth, K. C. | |
dc.contributor.author | Sanders, Nathan Edward | |
dc.contributor.author | Scolnic, D. | |
dc.contributor.author | Smith, K. | |
dc.contributor.author | Stubbs, Christopher William | |
dc.contributor.author | Tonry, J. L. | |
dc.contributor.author | Valenti, S. | |
dc.contributor.author | Burgett, W. S. | |
dc.contributor.author | Chambers, K. C. | |
dc.contributor.author | Hodapp, K. W. | |
dc.contributor.author | Kaiser, N. | |
dc.contributor.author | Kudritzki, R.-P. | |
dc.contributor.author | Magnier, E. A. | |
dc.contributor.author | Price, P. A. | |
dc.date.accessioned | 2014-03-04T13:15:34Z | |
dc.date.issued | 2013 | |
dc.identifier | Quick submit: 2014-01-17T10:52:47-05:00 | |
dc.identifier.citation | Chornock, R., E. Berger, A. Rest, D. Milisavljevic, R. Lunnan, R. J. Foley, A. M. Soderberg, et al. 2013. “ PS1-10afx AT z = 1.388: Pan-STARRS1 Discovery of a New Type of Superluminous Supernova.” The Astrophysical Journal 767 (2) (April 20): 162. doi:10.1088/0004-637x/767/2/162. http://dx.doi.org/10.1088/0004-637X/767/2/162. | en_US |
dc.identifier.issn | 0004-637X | en_US |
dc.identifier.uri | http://nrs.harvard.edu/urn-3:HUL.InstRepos:11857774 | |
dc.description.abstract | We present the Pan-STARRS1 discovery of PS1-10afx, a unique hydrogen-deficient superluminous supernova (SLSN) at redshift z = 1.388. The light curve peaked at z P1 = 21.7 mag, making PS1-10afx comparable to the most luminous known SNe, with Mu = –22.3 mag. Our extensive optical and near-infrared observations indicate that the bolometric light curve of PS1-10afx rose on the unusually fast timescale of ~12 days to the extraordinary peak luminosity of 4.1 × 1044 erg s–1 (M bol = –22.8 mag) and subsequently faded rapidly. Equally important, the spectral energy distribution is unusually red for an SLSN, with a color temperature of ~6800 K near maximum light, in contrast to previous hydrogen-poor SLSNe, which are bright in the ultraviolet (UV). The spectra more closely resemble those of a normal SN Ic than any known SLSN, with a photospheric velocity of ~11, 000 km s–1 and evidence for line blanketing in the rest-frame UV. Despite the fast rise, these parameters imply a very large emitting radius (gsim 5 × 1015 cm). We demonstrate that no existing theoretical model can satisfactorily explain this combination of properties: (1) a nickel-powered light curve cannot match the combination of high peak luminosity with the fast timescale; (2) models powered by the spindown energy of a rapidly rotating magnetar predict significantly hotter and faster ejecta; and (3) models invoking shock breakout through a dense circumstellar medium cannot explain the observed spectra or color evolution. The host galaxy is well detected in pre-explosion imaging with a luminosity near L*, a star formation rate of ~15 M ☉ yr–1, and is fairly massive (~2 × 1010 M ☉), with a stellar population age of ~108 yr, also in contrast to the young dwarf hosts of known hydrogen-poor SLSNe. PS1-10afx is distinct from known examples of SLSNe in its spectra, colors, light-curve shape, and host galaxy properties, suggesting that it resulted from a different channel than other hydrogen-poor SLSNe. | en_US |
dc.description.sponsorship | Astronomy | en_US |
dc.language.iso | en_US | en_US |
dc.publisher | American Astronomical Society | en_US |
dc.relation.isversionof | doi:10.1088/0004-637x/767/2/162 | en_US |
dash.license | OAP | |
dc.title | PS1-10afx at z = 1.388: Pan-STARRS1 Discovery of a New Type of Superluminous Supernova | en_US |
dc.type | Journal Article | en_US |
dc.date.updated | 2014-01-17T15:54:10Z | |
dc.description.version | Author's Original | en_US |
dc.rights.holder | Ryan Chornock, E Berger, A Rest, D Milisavljevic, R Lunnan, RJ Foley, AM Soderberg, SJ Smartt, AJ Burgasser, P Challis, L Chomiuk, I Czekala, M Drout, W Fong, ME Huber, RP Kirshner, C Leibler, B McLeod, GH Marion, G Narayan, AG Riess, KC Roth, NE Sanders, D Scolnic, K Smith, CW Stubbs, JL Tonry, S Valenti, WS Burgett, KC Chambers, KW Hodapp, N Kaiser, R-P Kudritzki, EA Magnier, PA Price | |
dc.relation.journal | Astrophysical Journal | en_US |
dash.depositing.author | Stubbs, Christopher William | |
dc.date.available | 2014-03-04T13:15:34Z | |
dc.identifier.doi | 10.1088/0004-637x/767/2/162 | * |
dash.authorsordered | false | |
dash.contributor.affiliated | Lunnan, R | |
dash.contributor.affiliated | Czekala, Ian | |
dash.contributor.affiliated | Fong, W | |
dash.contributor.affiliated | Narayan, Gautham | |
dash.contributor.affiliated | McLeod, Brian | |
dash.contributor.affiliated | Stubbs, Christopher | |
dash.contributor.affiliated | Chornock, R | |
dash.contributor.affiliated | Drout, Maria Rebecca | |
dash.contributor.affiliated | Challis, Peter | |
dash.contributor.affiliated | Kirshner, Robert | |
dash.contributor.affiliated | Soderberg, Alicia | |
dash.contributor.affiliated | Milisavljevic, Danny | |
dash.contributor.affiliated | Berger, Edo | |
dash.contributor.affiliated | Sanders, Nathan Edward | |