C. Inserra
Super-Luminous Type Ic Supernovae: Catching a Magnetar by the Tail
Inserra, C.; Smartt, S.J.; Jerkstrand, A.; Valenti, S.; Fraser, M.; Wright, D.; Smith, K.; Chen, T.-W.; Kotak, R.; Pastorello, A.; Nicholl, M.; Bresolin, F.; Kudritzki, R.P.; Benetti, S.; Botticella, M.T.; Burgett, W.S.; Chambers, K.C.; Ergon, M.; Flewelling, H.; Fynbo, J.P.U.; Geier, S.; Hodapp, K.W.; Howell, D.A.; Huber, M.; Kaiser, N.; Leloudas, G.; Magill, L.; Magnier, E.A.; McCrum, M.G.; Metcalfe, N.; Price, P.A.; Rest, A.; Sollerman, J.; Sweeney, W.; Taddia, F.; Taubenberger, S.; Tonry, J.L.; Wainscoat, R.J.; Waters, C.; Young, D.
Authors
S.J. Smartt
A. Jerkstrand
S. Valenti
M. Fraser
D. Wright
K. Smith
T.-W. Chen
R. Kotak
A. Pastorello
M. Nicholl
F. Bresolin
R.P. Kudritzki
S. Benetti
M.T. Botticella
W.S. Burgett
K.C. Chambers
M. Ergon
H. Flewelling
J.P.U. Fynbo
S. Geier
K.W. Hodapp
D.A. Howell
M. Huber
N. Kaiser
G. Leloudas
L. Magill
E.A. Magnier
M.G. McCrum
Dr Nigel Metcalfe nigel.metcalfe@durham.ac.uk
Assistant Professor
P.A. Price
A. Rest
J. Sollerman
W. Sweeney
F. Taddia
S. Taubenberger
J.L. Tonry
R.J. Wainscoat
C. Waters
D. Young
Abstract
We report extensive observational data for five of the lowest redshift Super-Luminous Type Ic Supernovae (SL-SNe Ic) discovered to date, namely, PTF10hgi, SN2011ke, PTF11rks, SN2011kf, and SN2012il. Photometric imaging of the transients at +50 to +230 days after peak combined with host galaxy subtraction reveals a luminous tail phase for four of these SL-SNe. A high-resolution, optical, and near-infrared spectrum from xshooter provides detection of a broad He I λ10830 emission line in the spectrum (+50 days) of SN2012il, revealing that at least some SL-SNe Ic are not completely helium-free. At first sight, the tail luminosity decline rates that we measure are consistent with the radioactive decay of 56Co, and would require 1-4 M ☉ of 56Ni to produce the luminosity. These 56Ni masses cannot be made consistent with the short diffusion times at peak, and indeed are insufficient to power the peak luminosity. We instead favor energy deposition by newborn magnetars as the power source for these objects. A semi-analytical diffusion model with energy input from the spin-down of a magnetar reproduces the extensive light curve data well. The model predictions of ejecta velocities and temperatures which are required are in reasonable agreement with those determined from our observations. We derive magnetar energies of 0.4 lsim E(1051 erg) lsim 6.9 and ejecta masses of 2.3 lsim M ej(M ☉) lsim 8.6. The sample of five SL-SNe Ic presented here, combined with SN 2010gx—the best sampled SL-SNe Ic so far—points toward an explosion driven by a magnetar as a viable explanation for all SL-SNe Ic.
Citation
Inserra, C., Smartt, S., Jerkstrand, A., Valenti, S., Fraser, M., Wright, D., …Young, D. (2013). Super-Luminous Type Ic Supernovae: Catching a Magnetar by the Tail. Astrophysical Journal, 770(2), Article 128. https://doi.org/10.1088/0004-637x/770/2/128
Journal Article Type | Article |
---|---|
Publication Date | Jun 20, 2013 |
Deposit Date | Apr 3, 2014 |
Publicly Available Date | Mar 28, 2024 |
Journal | Astrophysical Journal |
Print ISSN | 0004-637X |
Electronic ISSN | 1538-4357 |
Publisher | American Astronomical Society |
Peer Reviewed | Peer Reviewed |
Volume | 770 |
Issue | 2 |
Article Number | 128 |
DOI | https://doi.org/10.1088/0004-637x/770/2/128 |
Keywords | Stars: magnetars, Supernovae: general, Supernovae: individual (PTF10hgi, PTF11rks, SN 2011ke, SN 2011kf, SN 2012il). |
Files
Published Journal Article
(3.6 Mb)
PDF
Copyright Statement
© 2013. The American Astronomical Society. All rights reserved.
You might also like
The VST ATLAS quasar survey I: Catalogue of photometrically selected quasar candidates
(2023)
Journal Article
VST ATLAS galaxy cluster catalogue I: cluster detection and mass calibration
(2023)
Journal Article
The local hole: a galaxy underdensity covering 90 per cent of sky to ≈200 Mpc
(2022)
Journal Article
The nature of sub-millimetre galaxies II: an ALMA comparison of SMG dust heating mechanisms
(2022)
Journal Article
Downloadable Citations
About Durham Research Online (DRO)
Administrator e-mail: dro.admin@durham.ac.uk
This application uses the following open-source libraries:
SheetJS Community Edition
Apache License Version 2.0 (http://www.apache.org/licenses/)
PDF.js
Apache License Version 2.0 (http://www.apache.org/licenses/)
Font Awesome
SIL OFL 1.1 (http://scripts.sil.org/OFL)
MIT License (http://opensource.org/licenses/mit-license.html)
CC BY 3.0 ( http://creativecommons.org/licenses/by/3.0/)
Powered by Worktribe © 2024
Advanced Search