Constraints on the Progenitor of SN 2016gkg from Its Shock-cooling Light Curve

Iair Arcavi; Griffin Hosseinzadeh; Peter J. Brown; Stephen J. Smartt; Stefano Valenti; Leonardo Tartaglia; Anthony L. Piro; José L. Sanchez; Brent Nicholls; Berto L.A.G. Monard; D. Andrew Howell; Curtis McCully; David J. Sand; John Tonry; Larry Denneau; Brian Stalder; Ari Heinze; Armin Rest; Ken W. Smith; David Bishop

doi:https://doi.org/10.3847/2041-8213/aa5be1

Constraints on the Progenitor of SN 2016gkg from Its Shock-cooling Light Curve

Iair Arcavi, Griffin Hosseinzadeh, Peter J. Brown, Stephen J. Smartt, Stefano Valenti, Leonardo Tartaglia, Anthony L. Piro, José L. Sanchez, Brent Nicholls, Berto L.A.G. Monard, D. Andrew Howell, Curtis McCully, David J. Sand, John Tonry, Larry Denneau, Brian Stalder, Ari Heinze, Armin Rest, Ken W. Smith, David Bishop

Research output: Contribution to journal › Article › peer-review

Abstract

SN 2016gkg is a nearby SN IIb discovered shortly after explosion. Like several other Type IIb events with early-time data, SN 2016gkg displays a double-peaked light curve, with the first peak associated with the cooling of a low-mass extended progenitor envelope. We present unprecedented intranight-cadence multi-band photometric coverage of the first light curve peak of SN 2016gkg obtained from the Las Cumbres Observatory Global Telescope network, the Asteroid Terrestrial-impact Last Alert System, the Swift satellite, and various amateur-operated telescopes. Fitting these data to analytical shock-cooling models gives a progenitor radius of ∼40-150 with ∼2-40 × 10^-2M_⊙ of material in the extended envelope (depending on the model and the assumed host-galaxy extinction). Our radius estimates are broadly consistent with values derived independently (in other works) from HST imaging of the progenitor star. However, the shock-cooling model radii are on the lower end of the values indicated by pre-explosion imaging. Hydrodynamical simulations could refine the progenitor parameters deduced from the shock-cooling emission and test the analytical models.

Original language	English
Article number	L2
Journal	Astrophysical Journal Letters
Volume	837
Issue number	1
DOIs	https://doi.org/10.3847/2041-8213/aa5be1
State	Published - 1 Mar 2017
Externally published	Yes

Keywords

supernovae: general
supernovae: individual (SN 2016gkg)

All Science Journal Classification (ASJC) codes

Astronomy and Astrophysics
Space and Planetary Science

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https://doi.org/10.3847/2041-8213/aa5be1

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Arcavi, I., Hosseinzadeh, G., Brown, P. J., Smartt, S. J., Valenti, S., Tartaglia, L., Piro, A. L., Sanchez, J. L., Nicholls, B., Monard, B. L. A. G., Howell, D. A., McCully, C., Sand, D. J., Tonry, J., Denneau, L., Stalder, B., Heinze, A., Rest, A., Smith, K. W., & Bishop, D. (2017). Constraints on the Progenitor of SN 2016gkg from Its Shock-cooling Light Curve. Astrophysical Journal Letters, 837(1), Article L2. https://doi.org/10.3847/2041-8213/aa5be1

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title = "Constraints on the Progenitor of SN 2016gkg from Its Shock-cooling Light Curve",

abstract = "SN 2016gkg is a nearby SN IIb discovered shortly after explosion. Like several other Type IIb events with early-time data, SN 2016gkg displays a double-peaked light curve, with the first peak associated with the cooling of a low-mass extended progenitor envelope. We present unprecedented intranight-cadence multi-band photometric coverage of the first light curve peak of SN 2016gkg obtained from the Las Cumbres Observatory Global Telescope network, the Asteroid Terrestrial-impact Last Alert System, the Swift satellite, and various amateur-operated telescopes. Fitting these data to analytical shock-cooling models gives a progenitor radius of ∼40-150 with ∼2-40 × 10-2M⊙ of material in the extended envelope (depending on the model and the assumed host-galaxy extinction). Our radius estimates are broadly consistent with values derived independently (in other works) from HST imaging of the progenitor star. However, the shock-cooling model radii are on the lower end of the values indicated by pre-explosion imaging. Hydrodynamical simulations could refine the progenitor parameters deduced from the shock-cooling emission and test the analytical models.",

keywords = "supernovae: general, supernovae: individual (SN 2016gkg)",

author = "Iair Arcavi and Griffin Hosseinzadeh and Brown, {Peter J.} and Smartt, {Stephen J.} and Stefano Valenti and Leonardo Tartaglia and Piro, {Anthony L.} and Sanchez, {Jos{\'e} L.} and Brent Nicholls and Monard, {Berto L.A.G.} and Howell, {D. Andrew} and Curtis McCully and Sand, {David J.} and John Tonry and Larry Denneau and Brian Stalder and Ari Heinze and Armin Rest and Smith, {Ken W.} and David Bishop",

year = "2017",

month = mar,

day = "1",

doi = "https://doi.org/10.3847/2041-8213/aa5be1",

language = "الإنجليزيّة",

volume = "837",

journal = "Astrophysical Journal Letters",

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Arcavi, I, Hosseinzadeh, G, Brown, PJ, Smartt, SJ, Valenti, S, Tartaglia, L, Piro, AL, Sanchez, JL, Nicholls, B, Monard, BLAG, Howell, DA, McCully, C, Sand, DJ, Tonry, J, Denneau, L, Stalder, B, Heinze, A, Rest, A, Smith, KW & Bishop, D 2017, 'Constraints on the Progenitor of SN 2016gkg from Its Shock-cooling Light Curve', Astrophysical Journal Letters, vol. 837, no. 1, L2. https://doi.org/10.3847/2041-8213/aa5be1

TY - JOUR

T1 - Constraints on the Progenitor of SN 2016gkg from Its Shock-cooling Light Curve

AU - Arcavi, Iair

AU - Hosseinzadeh, Griffin

AU - Brown, Peter J.

AU - Smartt, Stephen J.

AU - Valenti, Stefano

AU - Tartaglia, Leonardo

AU - Piro, Anthony L.

AU - Sanchez, José L.

AU - Nicholls, Brent

AU - Monard, Berto L.A.G.

AU - Howell, D. Andrew

AU - McCully, Curtis

AU - Sand, David J.

AU - Tonry, John

AU - Denneau, Larry

AU - Stalder, Brian

AU - Heinze, Ari

AU - Rest, Armin

AU - Smith, Ken W.

AU - Bishop, David

PY - 2017/3/1

Y1 - 2017/3/1

N2 - SN 2016gkg is a nearby SN IIb discovered shortly after explosion. Like several other Type IIb events with early-time data, SN 2016gkg displays a double-peaked light curve, with the first peak associated with the cooling of a low-mass extended progenitor envelope. We present unprecedented intranight-cadence multi-band photometric coverage of the first light curve peak of SN 2016gkg obtained from the Las Cumbres Observatory Global Telescope network, the Asteroid Terrestrial-impact Last Alert System, the Swift satellite, and various amateur-operated telescopes. Fitting these data to analytical shock-cooling models gives a progenitor radius of ∼40-150 with ∼2-40 × 10-2M⊙ of material in the extended envelope (depending on the model and the assumed host-galaxy extinction). Our radius estimates are broadly consistent with values derived independently (in other works) from HST imaging of the progenitor star. However, the shock-cooling model radii are on the lower end of the values indicated by pre-explosion imaging. Hydrodynamical simulations could refine the progenitor parameters deduced from the shock-cooling emission and test the analytical models.

AB - SN 2016gkg is a nearby SN IIb discovered shortly after explosion. Like several other Type IIb events with early-time data, SN 2016gkg displays a double-peaked light curve, with the first peak associated with the cooling of a low-mass extended progenitor envelope. We present unprecedented intranight-cadence multi-band photometric coverage of the first light curve peak of SN 2016gkg obtained from the Las Cumbres Observatory Global Telescope network, the Asteroid Terrestrial-impact Last Alert System, the Swift satellite, and various amateur-operated telescopes. Fitting these data to analytical shock-cooling models gives a progenitor radius of ∼40-150 with ∼2-40 × 10-2M⊙ of material in the extended envelope (depending on the model and the assumed host-galaxy extinction). Our radius estimates are broadly consistent with values derived independently (in other works) from HST imaging of the progenitor star. However, the shock-cooling model radii are on the lower end of the values indicated by pre-explosion imaging. Hydrodynamical simulations could refine the progenitor parameters deduced from the shock-cooling emission and test the analytical models.

KW - supernovae: general

KW - supernovae: individual (SN 2016gkg)

UR - http://www.scopus.com/inward/record.url?scp=85014888746&partnerID=8YFLogxK

U2 - https://doi.org/10.3847/2041-8213/aa5be1

DO - https://doi.org/10.3847/2041-8213/aa5be1

M3 - مقالة

SN - 2041-8205

VL - 837

JO - Astrophysical Journal Letters

JF - Astrophysical Journal Letters

IS - 1

M1 - L2

ER -

Constraints on the Progenitor of SN 2016gkg from Its Shock-cooling Light Curve

Abstract

Keywords

All Science Journal Classification (ASJC) codes

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