Journal article
DES15E2mlf: a spectroscopically confirmed superluminous supernova that exploded 3.5 Gyr after the big bang
- 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 M_AB = -22.3 +/- 0.1 mag. Given the high redshift, our data probe the rest-frame ultraviolet (1400-3500 A) properties of the SN, finding velocity of the C III feature changes by ~5600 km/s over 14 days around maximum light. We find the host galaxy of DES15E2mlf has a stellar mass of 3.5^+3.6_-2.4 x 10^9 M_sun, which is more massive than the typical SLSN-I host galaxy.
- Publication status:
- Published
- Peer review status:
- Peer reviewed
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(Preview, Version of record, pdf, 974.4KB, Terms of use)
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- Publisher copy:
- 10.1093/mnras/stx1467
Authors
- Publisher:
- Oxford University Press
- Journal:
- Monthly Notices of the Royal Astronomical Society More from this journal
- Volume:
- 470
- Issue:
- 4
- Pages:
- 4241-4250
- Publication date:
- 2017-06-01
- Acceptance date:
- 2017-06-08
- DOI:
- EISSN:
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1365-2966
- ISSN:
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0035-8711
- Keywords:
- Pubs id:
-
pubs:727849
- UUID:
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uuid:4bb58206-aa8d-494c-82b9-a183efbe414e
- Local pid:
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pubs:727849
- Source identifiers:
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727849
- Deposit date:
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2018-01-11
Terms of use
- Copyright holder:
- Jarvis et al
- Copyright date:
- 2017
- Notes:
- © 2017 The Authors. Published by Oxford University Press on behalf of the Royal Astronomical Society
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