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A hot and fast ultra-stripped supernova that likely formed a compact neutron star binary

A hot and fast ultra-stripped supernova that likely formed a compact neutron star binary
A hot and fast ultra-stripped supernova that likely formed a compact neutron star binary

Compact neutron star binary systems are produced from binary massive stars through stellar evolution involving up to two supernova explosions.The final stages in the formation of these systems have not been directly observed. We report the discovery of iPTF 14gqr (SN 2014ft), a type Ic supernova with a fast-evolving light curve indicating an extremely low ejecta mass (≈0.2 solar masses) and low kinetic energy (≈2 × 1050 ergs). Early photometry and spectroscopy reveal evidence of shock cooling of an extended helium-rich envelope, likely ejected in an intense pre-explosion mass-loss episode of the progenitor. Taken together, we interpret iPTF 14gqr as evidence for ultra-stripped supernovae that form neutron stars in compact binary systems.

0036-8075
201-206
De, K.
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Kasliwal, M. M.
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Ofek, E. O.
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Moriya, T. J.
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Burke, J.
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Cao, Y.
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Cenko, S. B.
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Doran, G. B.
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Duggan, G. E.
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Fender, R. P.
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Fransson, C.
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Gal-Yam, A.
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Horesh, A.
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Kulkarni, S. R.
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Laher, R. R.
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Lunnan, R.
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Manulis, I.
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Masci, F.
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Mazzali, P. A.
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Nugent, P. E.
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Perley, D. A.
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Petrushevska, T.
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Piro, A. L.
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Rumsey, C.
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Sollerman, J.
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Sullivan, M.
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Taddia, F.
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De, K.
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Kasliwal, M. M.
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Ofek, E. O.
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Moriya, T. J.
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Burke, J.
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Cao, Y.
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Cenko, S. B.
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Doran, G. B.
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Duggan, G. E.
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Fender, R. P.
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Fransson, C.
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Gal-Yam, A.
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Horesh, A.
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Kulkarni, S. R.
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Laher, R. R.
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Lunnan, R.
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Manulis, I.
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Masci, F.
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Mazzali, P. A.
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Nugent, P. E.
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Perley, D. A.
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Petrushevska, T.
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Piro, A. L.
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Rumsey, C.
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Sollerman, J.
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Sullivan, M.
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Taddia, F.
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De, K., Kasliwal, M. M., Ofek, E. O., Moriya, T. J., Burke, J., Cao, Y., Cenko, S. B., Doran, G. B., Duggan, G. E., Fender, R. P., Fransson, C., Gal-Yam, A., Horesh, A., Kulkarni, S. R., Laher, R. R., Lunnan, R., Manulis, I., Masci, F., Mazzali, P. A., Nugent, P. E., Perley, D. A., Petrushevska, T., Piro, A. L., Rumsey, C., Sollerman, J., Sullivan, M. and Taddia, F. (2018) A hot and fast ultra-stripped supernova that likely formed a compact neutron star binary. Science, 362 (6411), 201-206. (doi:10.1126/science.aas8693).

Record type: Article

Abstract

Compact neutron star binary systems are produced from binary massive stars through stellar evolution involving up to two supernova explosions.The final stages in the formation of these systems have not been directly observed. We report the discovery of iPTF 14gqr (SN 2014ft), a type Ic supernova with a fast-evolving light curve indicating an extremely low ejecta mass (≈0.2 solar masses) and low kinetic energy (≈2 × 1050 ergs). Early photometry and spectroscopy reveal evidence of shock cooling of an extended helium-rich envelope, likely ejected in an intense pre-explosion mass-loss episode of the progenitor. Taken together, we interpret iPTF 14gqr as evidence for ultra-stripped supernovae that form neutron stars in compact binary systems.

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A hot and fast ultra-stripped supernova that likely formed a compact neutron star binary - Accepted Manuscript
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Accepted/In Press date: 26 July 2018
e-pub ahead of print date: 12 October 2018

Identifiers

Local EPrints ID: 425864
URI: https://eprints.soton.ac.uk/id/eprint/425864
ISSN: 0036-8075
PURE UUID: f4faa694-004e-4a17-941b-056682ae6448
ORCID for M. Sullivan: ORCID iD orcid.org/0000-0001-9053-4820

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Date deposited: 05 Nov 2018 17:30
Last modified: 19 Jul 2019 00:41

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Contributors

Author: K. De
Author: M. M. Kasliwal
Author: E. O. Ofek
Author: T. J. Moriya
Author: J. Burke
Author: Y. Cao
Author: S. B. Cenko
Author: G. B. Doran
Author: G. E. Duggan
Author: R. P. Fender
Author: C. Fransson
Author: A. Gal-Yam
Author: A. Horesh
Author: S. R. Kulkarni
Author: R. R. Laher
Author: R. Lunnan
Author: I. Manulis
Author: F. Masci
Author: P. A. Mazzali
Author: P. E. Nugent
Author: D. A. Perley
Author: T. Petrushevska
Author: A. L. Piro
Author: C. Rumsey
Author: J. Sollerman
Author: M. Sullivan ORCID iD
Author: F. Taddia

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