Hydrogen-rich supernovae beyond the neutrino-driven core-collapse paradigm

G. Terreran; M.~L. Pumo; T. -W. Chen; T.~J. Moriya; F. Taddia; L. Dessart; L. Zampieri; S.~J. Smartt; S. Benetti; C. Inserra; E. Cappellaro; M. Nicholl; M. Fraser; Ł. Wyrzykowski; A. Udalski; D.~A. Howell; C. McCully; S. Valenti; G. Dimitriadis; K. Maguire; M. Sullivan; K.~W. Smith; O. Yaron; D.~R. Young; J.~P. Anderson; M. Della Valle; N. Elias-Rosa; A. Gal-Yam; A. Jerkstrand; E. Kankare; A. Pastorello; J. Sollerman; M. Turatto; Z. Kostrzewa-Rutkowska; S. Kozłowski; P. Mróz; M. Pawlak; P. Pietrukowicz; R. Poleski; D. Skowron; J. Skowron; I. Soszyński; M.~K. Szymański; K. Ulaczyk

doi:10.1038/s41550-017-0228-8

Hydrogen-rich supernovae beyond the neutrino-driven core-collapse paradigm

G. Terreran, M.~L. Pumo, T. -W. Chen, T.~J. Moriya, F. Taddia, L. Dessart, L. Zampieri, S.~J. Smartt, S. Benetti, C. Inserra, E. Cappellaro, M. Nicholl, M. Fraser, Ł. Wyrzykowski, A. Udalski, D.~A. Howell, C. McCully, S. Valenti, G. Dimitriadis, K. MaguireM. Sullivan, K.~W. Smith, O. Yaron, D.~R. Young, J.~P. Anderson, M. Della Valle, N. Elias-Rosa, A. Gal-Yam, A. Jerkstrand, E. Kankare, A. Pastorello, J. Sollerman, M. Turatto, Z. Kostrzewa-Rutkowska, S. Kozłowski, P. Mróz, M. Pawlak, P. Pietrukowicz, R. Poleski, D. Skowron, J. Skowron, I. Soszyński, M.~K. Szymański, K. Ulaczyk

Physics and Astronomy

Research output: Contribution to journal › Article › peer-review

26 Citations (Scopus)

Abstract

Type II supernovae are the final stage of massive stars (above 8 M ⊙) which retain part of their hydrogen-rich envelope at the moment of explosion. They typically eject up to 15 M ⊙ of material, with peak magnitudes of −17.5 mag and energies in the order of 1051 erg, which can be explained by neutrino-driven explosions and neutron star formation. Here, we present our study of OGLE-2014-SN-073, one of the brightest type II supernovae ever discovered, with an unusually broad lightcurve combined with high ejecta velocities. From our hydrodynamical modelling, we infer a remarkable ejecta mass of 60+42−16 M ⊙ and a relatively high explosion energy of 12.4+13.0−5.9×1051 erg. We show that this object belongs, along with a very small number of other hydrogen-rich supernovae, to an energy regime that is not explained by standard core-collapse neutrino-driven explosions. We compare the quantities inferred by the hydrodynamical modelling with the expectations of various exploding scenarios and attempt to explain the high energy and luminosity released. We find some qualitative similarities with pair-instability supernovae, although the prompt injection of energy by a magnetar seems to be a viable alternative explanation for such an extreme event.

Original language	English
Pages (from-to)	713-720
Number of pages	8
Journal	Nature Astronomy
Volume	1
DOIs	https://doi.org/10.1038/s41550-017-0228-8
Publication status	Published - 1 Sept 2017

Keywords

Astrophysics - Solar and Stellar Astrophysics

Access to Document

10.1038/s41550-017-0228-8

Cite this

Terreran, G., Pumo, M. L., Chen, T. .-W., Moriya, T. J., Taddia, F., Dessart, L., Zampieri, L., Smartt, S. J., Benetti, S., Inserra, C., Cappellaro, E., Nicholl, M., Fraser, M., Wyrzykowski, Ł., Udalski, A., Howell, D. A., McCully, C., Valenti, S., Dimitriadis, G., ... Ulaczyk, K. (2017). Hydrogen-rich supernovae beyond the neutrino-driven core-collapse paradigm. Nature Astronomy, 1, 713-720. https://doi.org/10.1038/s41550-017-0228-8

@article{a9899834169a4b86bab13417c054eced,

title = "Hydrogen-rich supernovae beyond the neutrino-driven core-collapse paradigm",

abstract = "Type II supernovae are the final stage of massive stars (above 8 M ⊙) which retain part of their hydrogen-rich envelope at the moment of explosion. They typically eject up to 15 M ⊙ of material, with peak magnitudes of −17.5 mag and energies in the order of 1051 erg, which can be explained by neutrino-driven explosions and neutron star formation. Here, we present our study of OGLE-2014-SN-073, one of the brightest type II supernovae ever discovered, with an unusually broad lightcurve combined with high ejecta velocities. From our hydrodynamical modelling, we infer a remarkable ejecta mass of 60+42−16 M ⊙ and a relatively high explosion energy of 12.4+13.0−5.9×1051 erg. We show that this object belongs, along with a very small number of other hydrogen-rich supernovae, to an energy regime that is not explained by standard core-collapse neutrino-driven explosions. We compare the quantities inferred by the hydrodynamical modelling with the expectations of various exploding scenarios and attempt to explain the high energy and luminosity released. We find some qualitative similarities with pair-instability supernovae, although the prompt injection of energy by a magnetar seems to be a viable alternative explanation for such an extreme event.",

keywords = "Astrophysics - Solar and Stellar Astrophysics",

author = "G. Terreran and M.~L. Pumo and Chen, {T. -W.} and T.~J. Moriya and F. Taddia and L. Dessart and L. Zampieri and S.~J. Smartt and S. Benetti and C. Inserra and E. Cappellaro and M. Nicholl and M. Fraser and {\L}. Wyrzykowski and A. Udalski and D.~A. Howell and C. McCully and S. Valenti and G. Dimitriadis and K. Maguire and M. Sullivan and K.~W. Smith and O. Yaron and D.~R. Young and J.~P. Anderson and {Della Valle}, M. and N. Elias-Rosa and A. Gal-Yam and A. Jerkstrand and E. Kankare and A. Pastorello and J. Sollerman and M. Turatto and Z. Kostrzewa-Rutkowska and S. Koz{\l}owski and P. Mr{\'o}z and M. Pawlak and P. Pietrukowicz and R. Poleski and D. Skowron and J. Skowron and I. Soszy{\'n}ski and M.~K. Szyma{\'n}ski and K. Ulaczyk",

year = "2017",

month = sep,

day = "1",

doi = "10.1038/s41550-017-0228-8",

language = "English",

volume = "1",

pages = "713--720",

journal = "Nature Astronomy",

issn = "2397-3366",

publisher = "Nature Publishing Group",

}

Terreran, G, Pumo, ML, Chen, T-W, Moriya, TJ, Taddia, F, Dessart, L, Zampieri, L, Smartt, SJ, Benetti, S, Inserra, C, Cappellaro, E, Nicholl, M, Fraser, M, Wyrzykowski, Ł, Udalski, A, Howell, DA, McCully, C, Valenti, S, Dimitriadis, G, Maguire, K, Sullivan, M, Smith, KW, Yaron, O, Young, DR, Anderson, JP, Della Valle, M, Elias-Rosa, N, Gal-Yam, A, Jerkstrand, A, Kankare, E, Pastorello, A, Sollerman, J, Turatto, M, Kostrzewa-Rutkowska, Z, Kozłowski, S, Mróz, P, Pawlak, M, Pietrukowicz, P, Poleski, R, Skowron, D, Skowron, J, Soszyński, I, Szymański, MK & Ulaczyk, K 2017, 'Hydrogen-rich supernovae beyond the neutrino-driven core-collapse paradigm', Nature Astronomy, vol. 1, pp. 713-720. https://doi.org/10.1038/s41550-017-0228-8

TY - JOUR

T1 - Hydrogen-rich supernovae beyond the neutrino-driven core-collapse paradigm

AU - Terreran, G.

AU - Pumo, M.~L.

AU - Chen, T. -W.

AU - Moriya, T.~J.

AU - Taddia, F.

AU - Dessart, L.

AU - Zampieri, L.

AU - Smartt, S.~J.

AU - Benetti, S.

AU - Inserra, C.

AU - Cappellaro, E.

AU - Nicholl, M.

AU - Fraser, M.

AU - Wyrzykowski, Ł.

AU - Udalski, A.

AU - Howell, D.~A.

AU - McCully, C.

AU - Valenti, S.

AU - Dimitriadis, G.

AU - Maguire, K.

AU - Sullivan, M.

AU - Smith, K.~W.

AU - Yaron, O.

AU - Young, D.~R.

AU - Anderson, J.~P.

AU - Della Valle, M.

AU - Elias-Rosa, N.

AU - Gal-Yam, A.

AU - Jerkstrand, A.

AU - Kankare, E.

AU - Pastorello, A.

AU - Sollerman, J.

AU - Turatto, M.

AU - Kostrzewa-Rutkowska, Z.

AU - Kozłowski, S.

AU - Mróz, P.

AU - Pawlak, M.

AU - Pietrukowicz, P.

AU - Poleski, R.

AU - Skowron, D.

AU - Skowron, J.

AU - Soszyński, I.

AU - Szymański, M.~K.

AU - Ulaczyk, K.

PY - 2017/9/1

Y1 - 2017/9/1

N2 - Type II supernovae are the final stage of massive stars (above 8 M ⊙) which retain part of their hydrogen-rich envelope at the moment of explosion. They typically eject up to 15 M ⊙ of material, with peak magnitudes of −17.5 mag and energies in the order of 1051 erg, which can be explained by neutrino-driven explosions and neutron star formation. Here, we present our study of OGLE-2014-SN-073, one of the brightest type II supernovae ever discovered, with an unusually broad lightcurve combined with high ejecta velocities. From our hydrodynamical modelling, we infer a remarkable ejecta mass of 60+42−16 M ⊙ and a relatively high explosion energy of 12.4+13.0−5.9×1051 erg. We show that this object belongs, along with a very small number of other hydrogen-rich supernovae, to an energy regime that is not explained by standard core-collapse neutrino-driven explosions. We compare the quantities inferred by the hydrodynamical modelling with the expectations of various exploding scenarios and attempt to explain the high energy and luminosity released. We find some qualitative similarities with pair-instability supernovae, although the prompt injection of energy by a magnetar seems to be a viable alternative explanation for such an extreme event.

AB - Type II supernovae are the final stage of massive stars (above 8 M ⊙) which retain part of their hydrogen-rich envelope at the moment of explosion. They typically eject up to 15 M ⊙ of material, with peak magnitudes of −17.5 mag and energies in the order of 1051 erg, which can be explained by neutrino-driven explosions and neutron star formation. Here, we present our study of OGLE-2014-SN-073, one of the brightest type II supernovae ever discovered, with an unusually broad lightcurve combined with high ejecta velocities. From our hydrodynamical modelling, we infer a remarkable ejecta mass of 60+42−16 M ⊙ and a relatively high explosion energy of 12.4+13.0−5.9×1051 erg. We show that this object belongs, along with a very small number of other hydrogen-rich supernovae, to an energy regime that is not explained by standard core-collapse neutrino-driven explosions. We compare the quantities inferred by the hydrodynamical modelling with the expectations of various exploding scenarios and attempt to explain the high energy and luminosity released. We find some qualitative similarities with pair-instability supernovae, although the prompt injection of energy by a magnetar seems to be a viable alternative explanation for such an extreme event.

KW - Astrophysics - Solar and Stellar Astrophysics

U2 - 10.1038/s41550-017-0228-8

DO - 10.1038/s41550-017-0228-8

M3 - Article

SN - 2397-3366

VL - 1

SP - 713

EP - 720

JO - Nature Astronomy

JF - Nature Astronomy

ER -

Hydrogen-rich supernovae beyond the neutrino-driven core-collapse paradigm

Abstract

Keywords

Access to Document

Fingerprint

Cite this