Predicting the presence of companions for stripped-envelope supernovae: The case of the broad-lined type Ic SN 2002ap

E. Zapartas, S. E.De Mink, S. D.Van Dyk, O. D. Fox, Nathan Smith, K. A. Bostroem, A. De Koter, A. V. Filippenko, R. G. Izzard, P. L. Kelly, C. J. Neijssel, M. Renzo, S. Ryder

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

Many young, massive stars are found in close binaries. Using population synthesis simulations we predict the likelihood of a companion star being present when these massive stars end their lives as core-collapse supernovae (SNe). We focus on stripped-envelope SNe, whose progenitors have lost their outer hydrogen and possibly helium layers before explosion. We use these results to interpret new Hubble Space Telescope observations of the site of the broad-lined Type Ic SN 2002ap, 14 years post-explosion. For a subsolar metallicity consistent with SN 2002ap, we expect a main-sequence (MS) companion present in about two thirds of all stripped-envelope SNe and a compact companion (likely a stripped helium star or a white dwarf/neutron star/black hole) in about 5% of cases. About a quarter of progenitors are single at explosion (originating from initially single stars, mergers, or disrupted systems). All of the latter scenarios require a massive progenitor, inconsistent with earlier studies of SN 2002ap. Our new, deeper upper limits exclude the presence of an MS companion star >8-10 , ruling out about 40% of all stripped-envelope SN channels. The most likely scenario for SN 2002ap includes nonconservative binary interaction of a primary star initially . Although unlikely (<1% of the scenarios), we also discuss the possibility of an exotic reverse merger channel for broad-lined Type Ic events. Finally, we explore how our results depend on the metallicity and the model assumptions and discuss how additional searches for companions can constrain the physics that govern the evolution of SN progenitors.

Original languageEnglish (US)
Article number125
JournalAstrophysical Journal
Volume842
Issue number2
DOIs
StatePublished - Jun 20 2017

Fingerprint

supernovae
explosions
explosion
companion stars
envelopes
massive stars
merger
helium
metallicity
dwarf stars
stars
B stars
main sequence stars
Hubble Space Telescope
neutron stars
physics
hydrogen
synthesis
simulation
interactions

Keywords

  • binaries: close
  • binaries: general
  • stars: evolution
  • stars: massive
  • supernovae: general
  • supernovae: individual (SN 2002ap)

ASJC Scopus subject areas

  • Astronomy and Astrophysics
  • Space and Planetary Science

Cite this

Predicting the presence of companions for stripped-envelope supernovae : The case of the broad-lined type Ic SN 2002ap. / Zapartas, E.; Mink, S. E.De; Dyk, S. D.Van; Fox, O. D.; Smith, Nathan; Bostroem, K. A.; Koter, A. De; Filippenko, A. V.; Izzard, R. G.; Kelly, P. L.; Neijssel, C. J.; Renzo, M.; Ryder, S.

In: Astrophysical Journal, Vol. 842, No. 2, 125, 20.06.2017.

Research output: Contribution to journalArticle

Zapartas, E, Mink, SED, Dyk, SDV, Fox, OD, Smith, N, Bostroem, KA, Koter, AD, Filippenko, AV, Izzard, RG, Kelly, PL, Neijssel, CJ, Renzo, M & Ryder, S 2017, 'Predicting the presence of companions for stripped-envelope supernovae: The case of the broad-lined type Ic SN 2002ap', Astrophysical Journal, vol. 842, no. 2, 125. https://doi.org/10.3847/1538-4357/aa7467
Zapartas, E. ; Mink, S. E.De ; Dyk, S. D.Van ; Fox, O. D. ; Smith, Nathan ; Bostroem, K. A. ; Koter, A. De ; Filippenko, A. V. ; Izzard, R. G. ; Kelly, P. L. ; Neijssel, C. J. ; Renzo, M. ; Ryder, S. / Predicting the presence of companions for stripped-envelope supernovae : The case of the broad-lined type Ic SN 2002ap. In: Astrophysical Journal. 2017 ; Vol. 842, No. 2.
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abstract = "Many young, massive stars are found in close binaries. Using population synthesis simulations we predict the likelihood of a companion star being present when these massive stars end their lives as core-collapse supernovae (SNe). We focus on stripped-envelope SNe, whose progenitors have lost their outer hydrogen and possibly helium layers before explosion. We use these results to interpret new Hubble Space Telescope observations of the site of the broad-lined Type Ic SN 2002ap, 14 years post-explosion. For a subsolar metallicity consistent with SN 2002ap, we expect a main-sequence (MS) companion present in about two thirds of all stripped-envelope SNe and a compact companion (likely a stripped helium star or a white dwarf/neutron star/black hole) in about 5{\%} of cases. About a quarter of progenitors are single at explosion (originating from initially single stars, mergers, or disrupted systems). All of the latter scenarios require a massive progenitor, inconsistent with earlier studies of SN 2002ap. Our new, deeper upper limits exclude the presence of an MS companion star >8-10 , ruling out about 40{\%} of all stripped-envelope SN channels. The most likely scenario for SN 2002ap includes nonconservative binary interaction of a primary star initially . Although unlikely (<1{\%} of the scenarios), we also discuss the possibility of an exotic reverse merger channel for broad-lined Type Ic events. Finally, we explore how our results depend on the metallicity and the model assumptions and discuss how additional searches for companions can constrain the physics that govern the evolution of SN progenitors.",
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