dc.contributor.author | Sanders, Nathan Edward | |
dc.contributor.author | Soderberg, Alicia M. | |
dc.contributor.author | Valenti, S. | |
dc.contributor.author | Foley, R. J. | |
dc.contributor.author | Chornock, R | |
dc.contributor.author | Chomiuk, L | |
dc.contributor.author | Berger, Edo | |
dc.contributor.author | Smartt, S. | |
dc.contributor.author | Hurley, K. | |
dc.contributor.author | Barthelmy, S. D. | |
dc.contributor.author | Levesque, E. M. | |
dc.contributor.author | Narayan, G. | |
dc.contributor.author | Botticella, M. T. | |
dc.contributor.author | Briggs, M. S. | |
dc.contributor.author | Connaughton, V. | |
dc.contributor.author | Terada, Y. | |
dc.contributor.author | Gehrels, N. | |
dc.contributor.author | Golenetskii, S. | |
dc.contributor.author | Mazets, E. | |
dc.contributor.author | Cline, T. | |
dc.contributor.author | von Kienlin, A. | |
dc.contributor.author | Boynton, W. | |
dc.contributor.author | Chambers, K. C. | |
dc.contributor.author | Grav, T. | |
dc.contributor.author | Heasley, J. N. | |
dc.contributor.author | Hodapp, K. W. | |
dc.contributor.author | Jedicke, R. | |
dc.contributor.author | Kaiser, N. | |
dc.contributor.author | Kirshner, Robert P. | |
dc.contributor.author | Kudritzki, R.-P. | |
dc.contributor.author | Luppino, G. A. | |
dc.contributor.author | Lupton, R. H. | |
dc.contributor.author | Magnier, E. A. | |
dc.contributor.author | Monet, D. G. | |
dc.contributor.author | Morgan, J. S. | |
dc.contributor.author | Onaka, P. M. | |
dc.contributor.author | Price, P. A. | |
dc.contributor.author | Stubbs, Christopher William | |
dc.contributor.author | Tonry, J. L. | |
dc.contributor.author | Wainscoat, R. J. | |
dc.contributor.author | Waterson, M. F. | |
dc.date.accessioned | 2017-02-22T21:11:47Z | |
dc.date.issued | 2012 | |
dc.identifier.citation | Sanders, N. E., A. M. Soderberg, S. Valenti, R. J. Foley, R. Chornock, L. Chomiuk, E. Berger, et al. 2012. Sn 2010ay Is a Luminous and Broad-Lined Type Ic Supernova Within a Low-Metallicity Host Galaxy. The Astrophysical Journal 756, no. 2: 184. doi:10.1088/0004-637x/756/2/184. | en_US |
dc.identifier.issn | 0004-637X | en_US |
dc.identifier.uri | http://nrs.harvard.edu/urn-3:HUL.InstRepos:30410844 | |
dc.description.abstract | We report on our serendipitous pre-discovery detection and detailed follow-up of the broad-lined Type Ic supernova (SN) 2010ay at z = 0.067 imaged by the Pan-STARRS1 3π survey just ∼ 4 days after explosion. The SN had a peak luminosity, MR ≈ −20.2 mag, significantly more luminous than known GRB-SNe and one of the most luminous SNe Ib/c ever discovered. The absorption velocity of SN 2010ay is vSi ≈ 19 × 103 km s−1 at ∼ 40 days after explosion, 2 − 5 times higher than other broad-lined SNe and similar to the GRB-SN 2010bh at comparable epochs. Moreover, the velocity declines ∼ 2 times slower than other SNe Ic-BL and GRB-SNe. Assuming that the optical emission is powered by radioactive decay, the peak magnitude implies the synthesis of an unusually large mass of 56Ni, MNi = 0.9 M⊙. Modeling of the light-curve points to a total ejecta mass, Mej ≈ 4.7M⊙, and total kinetic energy, EK ≈ 11 × 1051 ergs. The ratio of MNi to Mej is ∼ 2 times as large for SN 2010ay as typical GRB-SNe and may suggest an additional energy reservoir. The metallicity (log(O/H)PP04 + 12 = 8.19) of the explosion site within the host galaxy places SN 2010ay in the low-metallicity regime populated by GRB-SNe, and ∼ 0.5(0.2) dex lower than that typically measured for the host environments of normal (broad-lined) Ic supernovae. We constrain any gammaray emission with Eγ . 6 × 1048 erg (25-150 keV) and our deep radio follow-up observations with the Expanded Very Large Array rule out relativistic ejecta with energy, E & 1048 erg. We therefore rule out the association of a relativistic outflow like those which accompanied SN 1998bw and traditional long-duration GRBs, but place less-stringent constraints on a weak afterglow like that seen from XRF 060218. These observations challenge the importance of progenitor metallicity for the production of a GRB, and suggest that other parameters also play a key role. | en_US |
dc.description.sponsorship | Astronomy | en_US |
dc.language.iso | en_US | en_US |
dc.publisher | IOP Publishing | en_US |
dc.relation.isversionof | doi:10.1088/0004-637x/756/2/184 | en_US |
dc.relation.hasversion | https://arxiv.org/pdf/1110.2363.pdf | en_US |
dash.license | OAP | |
dc.subject | gamma-rays: bursts | en_US |
dc.subject | Surveys: Pan-STARRS1 | en_US |
dc.subject | supernovae: individual (2010ay) | en_US |
dc.title | Sn 2010ay Is a Luminous and Broad-Lined Type Ic Supernova Within a Low-Metallicity Host Galaxy | en_US |
dc.type | Journal Article | en_US |
dc.description.version | Accepted Manuscript | en_US |
dc.relation.journal | The Astrophysical Journal | en_US |
dash.depositing.author | Berger, Edo | |
dc.date.available | 2017-02-22T21:11:47Z | |
dc.identifier.doi | 10.1088/0004-637x/756/2/184 | * |
dash.authorsordered | false | |
dash.contributor.affiliated | Stubbs, Christopher | |
dash.contributor.affiliated | Chornock, R | |
dash.contributor.affiliated | Kirshner, Robert | |
dash.contributor.affiliated | Chomiuk, Laura | |
dash.contributor.affiliated | Soderberg, Alicia | |
dash.contributor.affiliated | Berger, Edo | |
dash.contributor.affiliated | Sanders, Nathan Edward | |