DES15E2mlf: a spectroscopically confirmed superluminous supernova that exploded 3.5 Gyr after the big bang

dc.creatorPan, Y. C.
dc.creatorFoley, R. J.
dc.creatorSmith, M.
dc.creatorGonzález Gaitán, Santiago
dc.date.accessioned2018-07-09T14:49:09Z
dc.date.accessioned2019-04-26T01:41:31Z
dc.date.available2018-07-09T14:49:09Z
dc.date.available2019-04-26T01:41:31Z
dc.date.created2018-07-09T14:49:09Z
dc.date.issued2017
dc.identifierMonthly Notices of The Royal Astronomical Society 470, 4241–4250 (2017)
dc.identifier10.1093/mnras/stx1467
dc.identifierhttp://repositorio.uchile.cl/handle/2250/149654
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/2453703
dc.description.abstractWe present the Dark Energy Survey (DES) discovery of DES15E2mlf, the most distant superluminous supernova (SLSN) spectroscopically confirmed to date. The light curves and Gemini spectroscopy of DES15E2mlf indicate that it is a Type I superluminous supernova (SLSN-I) at z = 1.861 (a lookback time of similar to 10 Gyr) and peaking at M-AB = -22.3 +/- 0.1 mag. Given the high redshift, our data probe the rest-frame ultraviolet (1400-3500 angstrom) properties of the SN, finding velocity of the C III feature changes by similar to 5600 km s(-1) over 14 d around maximum light. We find the host galaxy of DES15E2mlf has a stellar mass of 3.5(-2.4)(+3.6) x 10(9) M-circle dot, which is more massive than the typical SLSN-I host galaxy.
dc.languageen
dc.publisherOxford University Press
dc.rightshttp://creativecommons.org/licenses/by-nc-nd/3.0/cl/
dc.rightsAttribution-NonCommercial-NoDerivs 3.0 Chile
dc.sourceMonthly Notices of The Royal Astronomical Society
dc.subjectSupernovae general
dc.subjectSupernovae individual: DES15E2mlf
dc.titleDES15E2mlf: a spectroscopically confirmed superluminous supernova that exploded 3.5 Gyr after the big bang
dc.typeArtículos de revistas


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