On the progenitor system of the type Iax supernova 2014dt in M61

Ryan J. Foley, Schuyler D. Van Dyk, Saurabh W. Jha, Kelsey I. Clubb, Alexei V. Filippenko, Jon C. Mauerhan, Adam A. Miller, Nathan Smith

Research output: Contribution to journalArticle

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Abstract

We present pre-explosion and post-explosion Hubble Space Telescope images of the Type Iax supernova (SN Iax) 2014dt in M61. After astrometrically aligning these images, we do not detect any stellar sources at the position of the SN in the pre-explosion images to relatively deep limits (3σ limits of MF438W > -5.0 mag and MF814W > -5.9 mag). These limits are similar to the luminosity of SN 2012Z's progenitor system (MF435W = -5.43 ± 0.15 and MF814W = -5.24 ± 0.16 mag), the only probable detected progenitor system in pre-explosion images of a SN Iax, and indeed, of any white-dwarf supernova. SN 2014dt is consistent with having a C/O white-dwarf primary/helium-star companion progenitor system, as was suggested for SN 2012Z, although perhaps with a slightly smaller or hotter donor. The data are also consistent with SN 2014dt having a low-mass red giant or main-sequence star companion. The data rule out main-sequence stars with Minit ≳ 16 M and most evolved stars with Minit ≳ 8 M as being the progenitor of SN 2014dt. Hot Wolf-Rayet stars are also allowed, but the lack of nearby bright sources makes this scenario unlikely. Because of its proximity (D = 12 Mpc), SN 2014dt is ideal for long-term monitoring, where images in ∼2 yr may detect the companion star or the luminous bound remnant of the progenitor white dwarf.

Original languageEnglish (US)
Article numberL37
JournalAstrophysical Journal Letters
Volume798
Issue number2
DOIs
StatePublished - Jan 1 2015

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supernovae
explosions
explosion
main sequence stars
companion stars
Wolf-Rayet stars
B stars
hot stars
Hubble Space Telescope
helium
proximity
luminosity
stars
monitoring

Keywords

  • galaxies: individual (M61)
  • supernovae: general
  • supernovae: individual (SN 2014dt)

ASJC Scopus subject areas

  • Space and Planetary Science
  • Astronomy and Astrophysics

Cite this

Foley, R. J., Van Dyk, S. D., Jha, S. W., Clubb, K. I., Filippenko, A. V., Mauerhan, J. C., ... Smith, N. (2015). On the progenitor system of the type Iax supernova 2014dt in M61. Astrophysical Journal Letters, 798(2), [L37]. https://doi.org/10.1088/2041-8205/798/2/L37

On the progenitor system of the type Iax supernova 2014dt in M61. / Foley, Ryan J.; Van Dyk, Schuyler D.; Jha, Saurabh W.; Clubb, Kelsey I.; Filippenko, Alexei V.; Mauerhan, Jon C.; Miller, Adam A.; Smith, Nathan.

In: Astrophysical Journal Letters, Vol. 798, No. 2, L37, 01.01.2015.

Research output: Contribution to journalArticle

Foley, RJ, Van Dyk, SD, Jha, SW, Clubb, KI, Filippenko, AV, Mauerhan, JC, Miller, AA & Smith, N 2015, 'On the progenitor system of the type Iax supernova 2014dt in M61', Astrophysical Journal Letters, vol. 798, no. 2, L37. https://doi.org/10.1088/2041-8205/798/2/L37
Foley RJ, Van Dyk SD, Jha SW, Clubb KI, Filippenko AV, Mauerhan JC et al. On the progenitor system of the type Iax supernova 2014dt in M61. Astrophysical Journal Letters. 2015 Jan 1;798(2). L37. https://doi.org/10.1088/2041-8205/798/2/L37
Foley, Ryan J. ; Van Dyk, Schuyler D. ; Jha, Saurabh W. ; Clubb, Kelsey I. ; Filippenko, Alexei V. ; Mauerhan, Jon C. ; Miller, Adam A. ; Smith, Nathan. / On the progenitor system of the type Iax supernova 2014dt in M61. In: Astrophysical Journal Letters. 2015 ; Vol. 798, No. 2.
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