Pan, Y-C;
Foley, RJ;
Smith, M;
Galbany, L;
D'Andrea, CB;
Gonzalez-Gaitan, S;
Jarvis, MJ;
... Walker, AR; + view all
(2017)
DES15E2mlf: a spectroscopically confirmed superluminous supernova that exploded 3.5 Gyr after the big bang.
Monthly Notices of the Royal Astronomical Society
, 470
(4)
pp. 4241-4250.
10.1093/mnras/stx1467.
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Abstract
We 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 ∼10 Gyr) and peaking at MAB = −22.3 ± 0.1 mag. Given the high redshift, our data probe the rest-frame ultraviolet (1400–3500 Å) properties of the SN, finding velocity of the C III feature changes by ∼5600 km s−1 over 14 d around maximum light. We find the host galaxy of DES15E2mlf has a stellar mass of 3.5+3.6 −2.4 × 109 M, which is more massive than the typical SLSN-I host galaxy.
| Type: | Article |
|---|---|
| Title: | DES15E2mlf: a spectroscopically confirmed superluminous supernova that exploded 3.5 Gyr after the big bang |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1093/mnras/stx1467 |
| Publisher version: | http://doi.org/10.1093/mnras/stx1467 |
| Language: | English |
| Additional information: | © 2017 The Authors. Published by Oxford University Press on behalf of the Royal Astronomical Society. This version is the version of record. For information on re-use, please refer to the publisher’s terms and conditions. |
| Keywords: | Science & Technology, Physical Sciences, Astronomy & Astrophysics, supernovae: general, supernovae: individual: DES15E2mlf, MASS-METALLICITY RELATION, DIGITAL SKY SURVEY, STAR-FORMING GALAXIES, LUMINOUS SUPERNOVAE, IA SUPERNOVAE, REDSHIFTS, EVOLUTION, EXPLOSIONS, ORIGIN, SAMPLE |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Physics and Astronomy |
| URI: | https://discovery-pp.ucl.ac.uk/id/eprint/1571025 |
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