The Progenitor and Early Evolution of the Type IIb SN 2016gkg

Tartaglia, L.; Fraser, M.; Sand, David J.; Valenti, S.; Smartt, S. J.; McCully, C.; Anderson, J. P.; Arcavi, I.; Elias‐Rosa, N.; Galbany, L.; Gal‐Yam, A.; Haislip, J. B.; Hosseinzadeh, G.; Howell, D. A.; Inserra, C.; Jha, Saurabh W.; Kankare, E.; Lundqvist, Peter; Maguire, K.; Mattila, S.; Reichart, D.; Smith, Kenneth; Smith, M.; Stritzinger, M. D.; Sullivan, M.; Taddia, F.; Tomasella, L.

doi:10.3847/2041-8213/aa5c7f

Cited by 61 publications

(86 citation statements)

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“…This lightcurve evolution is indicative of a massive progenitor that explodes via core collapse. A similar early-time bump was also detected in the Type Ib SN 1999ex (Stritzinger et al 2002), and in recent years early bumps have been used to constrain the radius of the progenitor star in a number of cases, such as SN 2008D (Chevalier & Fransson 2008;Bersten et al 2013), SN 2011dh (Arcavi et al 2011;Soderberg et al 2012;Bersten et al 2012), SN 2011fu (Kumar et al 2013), SN 2011hs (Bufano et al 2014), SN 2013df (Morales-Garoffolo et al 2014, and SN 2016gkg (Tartaglia et al 2017;Arcavi et al 2017). …”

Section: Introductionmentioning

confidence: 95%

“…In light of current and upcoming surveys such as the All-Sky Automated Survey for Supernovae (ASAS-SN; Shappee et al 2014;Kochanek et al 2017), the Asteroid Terrestrial-impact Last Alert System (ATLAS; Tonry 2011; Tonry et al 2016), the Distance Less Than 40 Mpc survey (DLT40; Tartaglia et al 2017), Pan-STARRS1 (Magnier et al 2013), and the Zwicky Transient Facility (ZTF; Smith et al 2014), progressively more young SE SNe will be discovered within hours of explosion. These early discoveries, coupled with high-cadence spectroscopy at medium or high resolutions, offer the potential to provide new constraints on SE SN progenitors, their pre-SN history, and the reddening of light produced by circumstellar dust.…”

Section: Prospects For the Futurementioning

confidence: 99%

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The Carnegie Supernova Project I

Stritzinger

Anderson

Contreras

et al. 2018

A&A

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The first phase of the Carnegie Supernova Project (CSP-I) was a dedicated supernova follow-up program based at the Las Campanas Observatory that collected science data of young, low-redshift supernovae between 2004 and 2009. Presented in this paper is the CSP-I photometric data release of low-redshift stripped-envelope core-collapse supernovae. The data consist of optical (uBgVri) photometry of 34 objects, with a subset of 26 having near-infrared (Y JH) photometry. Twenty objects have optical pre-maximum coverage with a subset of 12 beginning at least five days prior to the epoch of B-band maximum brightness. In the near-infrared, 17 objects have pre-maximum observations with a subset of 14 beginning at least five days prior to the epoch of J-band maximum brightness. Analysis of this photometric data release is presented in companion papers focusing on techniques to estimate host-galaxy extinction and the light-curve and progenitor star properties of the sample. The analysis of an accompanying visual-wavelength spectroscopy sample of ∼150 spectra will be the subject of a future paper.

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Section: Introductionmentioning

confidence: 95%

Section: Prospects For the Futurementioning

confidence: 99%

The Carnegie Supernova Project I

Stritzinger

Anderson

Contreras

et al. 2018

A&A

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“…Alternatively, "flash spectroscopy" at very early phases can probe the physical properties of the CSM as well as the mass-loss history of the progenitor star prior to its explosion (e.g., Gal-Yam et al 2014;Smith et al 2015;Khazov et al 2016;Yaron et al 2017). Even when archival HST data are available, radius estimates through the analysis of very early data can give important results, since the progenitor field might be contaminated by the presence of binary companions (e.g., Tartaglia et al 2017a).…”

Section: Introductionmentioning

confidence: 99%

The Early Detection and Follow-up of the Highly Obscured Type II Supernova 2016ija/DLT16am^∗

Tartaglia

Sand

Valenti

et al. 2018

ApJ

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We present our analysis of the Type II supernova DLT16am (SN 2016ija). The object was discovered during the ongoing D 40 Mpc < (DLT40) one-day cadence supernova search at r 20.1 mag in the "edge-on" nearby (D 20.0 4.0 Mpc =  ) galaxy NGC1532. The subsequent prompt and high-cadenced spectroscopic and photometric follow-up revealed a highly extinguished transient, with E B V 1.95 0.15 mag -=  ( ) , consistent with a standard extinction law with R V = 3.1 and a bright (M 18.48 0.77 mag V = - ) absolute peak magnitude. A comparison of the photometric features with those of large samples of SNe II reveals a fast rise for the derived luminosity and a relatively short plateau phase, with a slope of S 0.84 0.04 mag 50 days V 50 =  , consistent with the photometric properties typical of those of fast-declining SNe II. Despite the large uncertainties on the distance and the extinction in the direction of DLT16am, the measured photospheric expansion velocity and the derived absolute V-band magnitude at 50 days after the explosion match the existing luminosity-velocity relation for SNe II.

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“…SN1993J in M81 attracted considerable interest in part owing to its proximity (3.6 Mpc), which enabled the detection of not just the progenitor star (Aldering et al 1994;Van Dyk et al 2002) but also a putative early B-type supergiant companion star (Maund et al 2004;Fox et al 2014). Progenitor stars have also been identified in pre-explosion images of the TypeIIb SNe 2008ax (Crockett et al 2008;Folatelli et al 2015), 2011dh (Maund et al 2011;Van Dyk et al 2011), 2013df (Van Dyk et al 2014, and 2016gkg (Kilpatrick et al 2017;Tartaglia et al 2017;Bersten et al 2018), while searches for a binary companion to SN2011dh are inconclusive (Folatelli et al 2014;Maund et al 2015). The relatively low initial masses inferred from these SNeIIb progenitors, which overlap with the progenitor mass range of SNeIIP (Smartt 2009), further complicate the hypothesis that SNeIIb form a transition from normal SNeIIP/IIL to SNeIbc with increasing initial mass and/ or mass loss rate.…”

Section: Introductionmentioning

confidence: 99%

Ultraviolet Detection of the Binary Companion to the Type IIb SN 2001ig

Ryder

Dyk

Fox

et al. 2018

ApJ

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We present HST/WFC3 ultraviolet imaging in the F275W and F336W bands of the TypeIIb SN2001ig at an age of more than 14years. A clear point source is detected at the site of the explosion, with m F275W =25.39±0.10 and m F336W =25.88±0.13 mag. Despite weak constraints on both the distance to the host galaxy NGC7424 and the line-of-sight reddening to the supernova, this source matches the characteristics of an early B-type mainsequence star with 19,000<T eff <22,000 K and3.92 0.14 bol . A BPASS v2.1 binary evolution model, with primary and secondary masses of 13M e and 9M e, respectively, is found to simultaneously resemble, in the Hertzsprung-Russell diagram, both the observed location of this surviving companion, and the primary star evolutionary endpoints for other TypeIIb supernovae. This same model exhibits highly variable late-stage mass loss, as expected from the behavior of the radio light curves. A Gemini/GMOS optical spectrum at an age of 6 years reveals a narrow He II λ4686 emission line, indicative of continuing interaction with a dense circumstellar medium at large radii from the progenitor. We review our findings on SN2001ig in the context of binary evolution channels for stripped-envelope supernovae. Owing to the uncrowded nature of its environment in the ultraviolet, this study of SN2001ig represents one of the cleanest detections to date of a surviving binary companion to a TypeIIb supernova.

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The Progenitor and Early Evolution of the Type IIb SN 2016gkg

Cited by 61 publications

References 40 publications

The Carnegie Supernova Project I

The Carnegie Supernova Project I

The Early Detection and Follow-up of the Highly Obscured Type II Supernova 2016ija/DLT16am^∗

Ultraviolet Detection of the Binary Companion to the Type IIb SN 2001ig

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The Progenitor and Early Evolution of the Type IIb SN 2016gkg

Cited by 61 publications

References 40 publications

The Carnegie Supernova Project I

The Carnegie Supernova Project I

The Early Detection and Follow-up of the Highly Obscured Type II Supernova 2016ija/DLT16am∗

Ultraviolet Detection of the Binary Companion to the Type IIb SN 2001ig

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About

The Early Detection and Follow-up of the Highly Obscured Type II Supernova 2016ija/DLT16am^∗