DISCOVERY, PROGENITOR AND EARLY EVOLUTION OF A STRIPPED ENVELOPE SUPERNOVA iPTF13bvn

By Yi Cao, Mansi M. Kasliwal, I. Arcavi, A. Horesh, P. Hancock, S. Valenti, S. Cenko, S. Kulkarni, A. Gal-yam, E. Gorbikov and 19 more. 2013

139 citations recorded by the source corpus.

The intermediate Palomar Transient Factory reports our discovery of a young supernova, iPTF13bvn, in the nearby galaxy, NGC 5806 (22.5 Mpc). Our spectral sequence in the optical and infrared suggests a Type Ib classification. We identify a blue progenitor candidate in deep pre-explosion imaging within a 2σ error circle of 80 mas (8.7 pc). The candidate has an MB luminosity of −5.52 ± 0.39 mag and a B − I color of 0.25 ± 0.25 mag. If confirmed by future observations, this would be the first direct detection for a progenitor of a Type Ib. Fitting a power law to the early light curve, we find an extrapolated explosion date around 0.6 days before our first detection. We see no evidence of shock cooling. The pre-explosion detection limits constrain the radius of the progenitor to be smaller than a few solar radii. iPTF13bvn is also detected in centimeter and millimeter wavelengths. Fitting a synchrotron self-absorption model to our radio data, we find a mass-loading parameter of 1.3×1012 g cm−1. Assuming a wind velocity of 103 km s−1, we derive a progenitor mass-loss rate of 3 × 10−5 M☉ yr−1. Our observations, taken as a whole, are consistent with a Wolf–Rayet progenitor of the supernova iPTF13bvn.

Subfields: Astronomy and Astrophysics, Nuclear and High Energy Physics

View Paper: https://www.semanticscholar.org/paper/332efe2ac5e2db045bbc47c17d558de94611fc9c

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In Astronomy and Astrophysics

1. S. Smartt
2. A. Filippenko
3. R. Kirshner
4. S. Jha
5. N. Smith
6. J. Eldridge
7. A. Gal-yam
8. D. Maoz

In Nuclear and High Energy Physics

1. S. Smartt
2. R. Kirshner
3. M. Kromer
4. S. Jha
5. A. Gal-yam
6. W. Hillebrandt
7. J. C. Wheeler
8. A. Filippenko

Citations in the corpus

• Binary Population and Spectral Synthesis Version 2.1: Construction, Observational Verification, and New Results (2017, background): “For the type Ib/c SNe, only one progenitor has been observed, iPTF13bvn (Cao et al. 2013; Eldridge & Maund 2016).”
• Early-time light curves of Type Ib/c supernovae from the SDSS-II Supernova Survey (2014, background): “…the explosion date is to extrapolate the light curve back in time assuming some functional form − usually a power law (PL), L(t) = A(t− tPLexpl)α. Cao et al. (2013) applied a PL fit to the early light curve of iPTF13bvn, and the same was done by Pignata et al. (2011) for SN 2009bb. PL and…”
• The Wolf-Rayet stars in the Large Magellanic Cloud - A comprehensive analysis of the WN class (2014, background): “The first tentative identification of a WR star as a type Ib SN progenitor has been recently reported for SN iPTF13bvn (Cao et al. 2013).”
• PESSTO: survey description and products from the first data release by the Public ESO Spectroscopic Survey of Transient Objects (2014, methodology): “…community to observe it with multiwavelength facilities in the interesting early phases of a few days after explosion (e.g. Soderberg et al. 2008; Cao et al. 2013) To gauge how the first year of PESSTO progressed, we compare the phases of the first classification spectra taken by PESSTO of La…”
• Bolometric light curves and explosion parameters of 38 stripped-envelope core-collapse supernovae (2014, unknown): “Although a high-mass star (MZAMS 30–40 M ) was proposed as the progenitor of the SN Ib iPTF13bvn (Cao et al. 2013; Groh et al. 2013a) based on detections in pre-explosion imaging, the recent works of Fremling et al. (2014), Bersten et al. (2014) and Eldridge et al. (2015) argue against a single…”
• The Carnegie Supernova Project I: analysis of stripped-envelope supernova light curves (2017, background): “…et al. 2009), SN 2008D (Soderberg et al. 2008; Mazzali et al. 2008; Modjaz et al. 2009; Malesani et al. 2009; Bersten et al. 2013), SN 2009jf (Valenti et al. 2011), SN 2013ge (Drout et al. 2016), amd iPTF13bvn (Cao et al. 2013; Fremling et al. 2014; Bersten et al. 2014; Fremling et al. 2016).”
• Observational Constraints on the Progenitors of Core-Collapse Supernovae: The Case for Missing High-Mass Stars (2015, methodology): “Just after the publication of the Eldridge et al. (2013) summary, the Palomar Transient Factory (PTF) discovered a nearby Ib SN in NGC5806 (d = 22 Mpc) and set a very restrictive time on the explosion epoch (Cao et al. 2013).”
• OPTICAL SPECTRA OF 73 STRIPPED-ENVELOPE CORE-COLLAPSE SUPERNOVAE (2014, background): “Recent reviews (Smartt et al. 2009; Eldridge et al. 2013) show that pre-explosion Hubble Space Telescope (HST) images at the sites of SNe Ib, SNe Ic, and SNe Ic-bl have not yet conclusively detected a candidate for the progenitor star (except perhaps for a recent SN Ib; Cao et al. 2013).”
• PTF12os and iPTF13bvn. Two stripped-envelope supernovae from low-mass progenitors in NGC 5806 (2016, methodology): “We note that the explosion date we find using this method is within 0.1 d of the explosion date estimate by Cao et al. (2013), but around 0.3 d later than the explosion date derived from our hydrodynamical modeling.”
• Dawes Review 6: The Impact of Companions on Stellar Evolution (2016, result): “The predictions of Eldridge et al. (2013) may have been bourn out in the discovery of a possible progenitor of SN iPTF13bvn (Cao et al., 2013) that is consistent with a lower mass helium star, but inconsistent with a WR progenitor (Eldridge et al., 2015).”