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The volumetric rate of superluminous supernovae at z ~ 1

The volumetric rate of superluminous supernovae at z ~ 1
The volumetric rate of superluminous supernovae at z ~ 1
We present a measurement of the volumetric rate of superluminous supernovae (SLSNe) at z ? 1.0, measured using archival data from the first four years of the Canada–France–Hawaii Telescope Supernova Legacy Survey (SNLS). We develop a method for the photometric classification of SLSNe to construct our sample. Our sample includes two previously spectroscopically identified objects, and a further new candidate selected using our classification technique. We use the point-source recovery efficiencies from Perrett et al. and a Monte Carlo approach to calculate the rate based on our SLSN sample. We find that the three identified SLSNe from SNLS give a rate of 91+76?36 SNe yr?1 Gpc?3 at a volume-weighted redshift of z = 1.13. This is equivalent to 2.2+1.8?0.9×10?4 of the volumetric core-collapse supernova rate at the same redshift. When combined with other rate measurements from the literature, we show that the rate of SLSNe increases with redshift in a manner consistent with that of the cosmic star formation history. We also estimate the rate of ultra-long gamma-ray bursts based on the events discovered by the Swift satellite, and show that it is comparable to the rate of SLSNe, providing further evidence of a possible connection between these two classes of events. We also examine the host galaxies of the SLSNe discovered in SNLS, and find them to be consistent with the stellar-mass distribution of other published samples of SLSNe.
0035-8711
3568-3579
Prajs, S.
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Sullivan, M.
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Smith, M.
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Levan, A.
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Karpenka, N.V.
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Edwards, T.D.P.
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Walker, C.R.
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Wolf, W.M.
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Balland, C.
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Carlberg, R.
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Howell, D.A.
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Lidman, C.
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Pain, R.
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Pritchet, C.
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Ruhlmann-Kleider, V.
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Prajs, S.
84bb5d78-0e3f-4ce9-9dd2-de5479b03aaa
Sullivan, M.
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Smith, M.
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Levan, A.
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Karpenka, N.V.
1213b4a7-ef6f-4bc5-adfa-7f8e4478d4e5
Edwards, T.D.P.
ce2343da-b47d-4de4-976e-2a3cea311a2d
Walker, C.R.
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Wolf, W.M.
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Balland, C.
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Carlberg, R.
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Howell, D.A.
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Lidman, C.
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Pain, R.
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Pritchet, C.
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Ruhlmann-Kleider, V.
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Prajs, S., Sullivan, M., Smith, M., Levan, A., Karpenka, N.V., Edwards, T.D.P., Walker, C.R., Wolf, W.M., Balland, C., Carlberg, R., Howell, D.A., Lidman, C., Pain, R., Pritchet, C. and Ruhlmann-Kleider, V. (2017) The volumetric rate of superluminous supernovae at z ~ 1. Monthly Notices of the Royal Astronomical Society, 464 (3), 3568-3579. (doi:10.1093/mnras/stw1942).

Record type: Article

Abstract

We present a measurement of the volumetric rate of superluminous supernovae (SLSNe) at z ? 1.0, measured using archival data from the first four years of the Canada–France–Hawaii Telescope Supernova Legacy Survey (SNLS). We develop a method for the photometric classification of SLSNe to construct our sample. Our sample includes two previously spectroscopically identified objects, and a further new candidate selected using our classification technique. We use the point-source recovery efficiencies from Perrett et al. and a Monte Carlo approach to calculate the rate based on our SLSN sample. We find that the three identified SLSNe from SNLS give a rate of 91+76?36 SNe yr?1 Gpc?3 at a volume-weighted redshift of z = 1.13. This is equivalent to 2.2+1.8?0.9×10?4 of the volumetric core-collapse supernova rate at the same redshift. When combined with other rate measurements from the literature, we show that the rate of SLSNe increases with redshift in a manner consistent with that of the cosmic star formation history. We also estimate the rate of ultra-long gamma-ray bursts based on the events discovered by the Swift satellite, and show that it is comparable to the rate of SLSNe, providing further evidence of a possible connection between these two classes of events. We also examine the host galaxies of the SLSNe discovered in SNLS, and find them to be consistent with the stellar-mass distribution of other published samples of SLSNe.

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The Volumetric Rate of Superluminous Supernovae at z 1 - Accepted Manuscript
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Accepted/In Press date: 2 August 2016
e-pub ahead of print date: 16 August 2016
Published date: 21 January 2017
Organisations: Astronomy Group

Identifiers

Local EPrints ID: 404062
URI: https://eprints.soton.ac.uk/id/eprint/404062
ISSN: 0035-8711
PURE UUID: 2444473f-ba0e-4e67-ae23-4ad9bad296c2
ORCID for M. Sullivan: ORCID iD orcid.org/0000-0001-9053-4820
ORCID for M. Smith: ORCID iD orcid.org/0000-0002-3321-1432

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Date deposited: 20 Dec 2016 11:45
Last modified: 17 May 2019 00:30

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Contributors

Author: S. Prajs
Author: M. Sullivan ORCID iD
Author: M. Smith ORCID iD
Author: A. Levan
Author: N.V. Karpenka
Author: T.D.P. Edwards
Author: C.R. Walker
Author: W.M. Wolf
Author: C. Balland
Author: R. Carlberg
Author: D.A. Howell
Author: C. Lidman
Author: R. Pain
Author: C. Pritchet
Author: V. Ruhlmann-Kleider

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