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On the Progenitor System of the Type Iax Supernova 2014dt in M61

Foley, Ryan J. and Van Dyk, Schuyler D. and Jha, Saurabh and Clubb, Kelsey I. and Filippenko, Alexei V. and Mauerhan, Jon C. and Miller, Adam A. and Smith, Nathan (2015) On the Progenitor System of the Type Iax Supernova 2014dt in M61. Astrophysical Journal Letters, 798 (2). Art. No. L37. ISSN 2041-8205.

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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 M_F438W > –5.0 mag and M_F814W > –5.9 mag). These limits are similar to the luminosity of SN 2012Z's progenitor system (M F435W = –5.43 ± 0.15 and M_F814W = –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 M_init ≳ 16 M_☉ and most evolved stars with M_init ≳ 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.

Item Type:Article
Related URLs:
URLURL TypeDescription Paper
Van Dyk, Schuyler D.0000-0001-9038-9950
Filippenko, Alexei V.0000-0003-3460-0103
Miller, Adam A.0000-0001-9515-478X
Additional Information:© 2015 The American Astronomical Society. Received 1 December 2014; accepted for publication 16 December 2014; published 31 December 2014. Based on observations made with the NASA/ESA Hubble Space Telescope, obtained at the Space Telescope Science Institute (STScI), which is operated by the Association of Universities for Research in Astronomy, Inc., under NASA contract NAS 5–26555. These observations are associated with and funded through program GO-13683. Data were obtained through the Hubble Legacy Archive, which is a collaboration between STScI/NASA, the Space Telescope European Coordinating Facility (ST-ECF/ESA), and the Canadian Astronomy Data Centre (CADC/NRC/CSA). SN Iax research at the University of Illinois is supported in part through NASA/HST grant GO–12999.01. This research at Rutgers University was supported through NASA/HST grant GO–12913.01 and National Science Foundation (NSF) CAREER award AST–0847157 to S.W.J. A.A.M. acknowledges support for this work by NASA from Hubble Fellowship grant HST–HF–51325.01, awarded by STScI. A.V.F.'s group at U.C. Berkeley is supported by the Christopher R. Redlich Fund, the TABASGO Foundation, and NSF grant AST–1211916. Facility: HST (WFPC2, WFC3) - Hubble Space Telescope satellite, Shane (Kast) - Lick Observatory's 3m Shane Telescope
Group:Infrared Processing and Analysis Center (IPAC)
Funding AgencyGrant Number
Christopher R. Redlich FundUNSPECIFIED
Subject Keywords:galaxies: individual (M61); supernovae: general; supernovae: individual (SN 2014dt)
Issue or Number:2
Record Number:CaltechAUTHORS:20150205-103608966
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Official Citation:On the Progenitor System of the Type Iax Supernova 2014dt in M61 Ryan J. Foley et al. 2015 ApJ 798 L37
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:54419
Deposited By: Jason Perez
Deposited On:05 Feb 2015 20:44
Last Modified:09 Mar 2020 13:19

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