2021MNRAS.507.3125A

Query : 2021MNRAS.507.3125A

2021MNRAS.507.3125A - Mon. Not. R. Astron. Soc., 507, 3125-3138 (2021/November-1)

SN2017jgh: a high-cadence complete shock cooling light curve of a SN IIb with the Kepler telescope.

ARMSTRONG P., TUCKER B.E., REST A., RIDDEN-HARPER R., ZENATI Y., PIRO A.L., HINTON S., LIDMAN C., MARGHEIM S., NARAYAN G., SHAYA E., GARNAVICH P., KASEN D., VILLAR V., ZENTENO A., ARCAVI I., DROUT M., FOLEY R.J., WHEELER J., ANAIS J., CAMPILLAY A., COULTER D., DIMITRIADIS G., JONES D., KILPATRICK C.D., MUNOZ-ELGUETA N., ROJAS-BRAVO C., VARGAS-GONZALEZ J., BULGER J., CHAMBERS K., HUBER M., LOWE T., MAGNIER E., SHAPPEE B.J., SMARTT S., SMITH K.W., BARCLAY T., BARENTSEN G., DOTSON J., GULLY-SANTIAGO M., HEDGES C., HOWELL S., CODY A., AUCHETTL K., BODI A., BOGNAR Z., BRIMACOMBE J., BROWN P., CSEH B., GALBANY L., HIRAMATSU D., HOLOIEN T.W.-S., HOWELL D.A., JHA S.W., KONYVES-TOTH R., KRISKOVICS L., McCULLY C., MILNE P., MUNOZ J., PAN Y., PAL A., SAI H., SARNECZKY K., SMITH N., SODOR A., SZABO R., SZAKATS R., VALENTI S., VINKO J., WANG X., ZHANG K. and ZSIDI G.

Abstract (from CDS):

SN 2017jgh is a type IIb supernova discovered by Pan-STARRS during the C16/C17 campaigns of the Kepler/K2 mission. Here, we present the Kepler/K2 and ground based observations of SN 2017jgh, which captured the shock cooling of the progenitor shock breakout with an unprecedented cadence. This event presents a unique opportunity to investigate the progenitors of stripped envelope supernovae. By fitting analytical models to the SN 2017jgh light curve, we find that the progenitor of SN 2017jgh was likely a yellow supergiant with an envelope radius of ∼50-290 R☉, and an envelope mass of ∼0-1.7 M☉. SN 2017jgh likely had a shock velocity of ∼7500-10 300 km s–1. Additionally, we use the light curve of SN 2017jgh to investigate how early observations of the rise contribute to constraints on progenitor models. Fitting just the ground based observations, we find an envelope radius of ∼50-330 R☉, an envelope mass of ∼0.3-1.7 M☉ and a shock velocity of ∼9000-15 000 km s–1. Without the rise, the explosion time cannot be well constrained that leads to a systematic offset in the velocity parameter and larger uncertainties in the mass and radius. Therefore, it is likely that progenitor property estimates through these models may have larger systematic uncertainties than previously calculated.

Abstract Copyright: © 2021 The Author(s) Published by Oxford University Press on behalf of Royal Astronomical Society

Journal keyword(s): shock waves - supernovae: general - supernovae: individual - transients: supernovae

Simbad objects: 8

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Number of rows : 8
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 SN 2016gkg SN* 01 34 14.46 -29 26 25.0           SNII 126 0
2 SN 2011fu SN* 02 08 21.40 +41 29 12.3           SNII 74 1
3 LEDA 1402940 G 09 02 56.1478483872 +12 03 00.383330736           ~ 6 0
4 SN 2017jgh SN* 09 02 56.736 +12 03 04.27           SNIIb 15 0
5 SN 1993J SN* 09 55 24.77476 +69 01 13.7026   10.8 12.0     SNIIb 1507 1
6 SN 2013df SN* 12 26 29.33 +31 13 38.3           SNIIb 142 1
7 SN 2011dh SN* 13 30 05.10555 +47 10 10.9227           SNIIb 445 1
8 SN 2011hs SN* 22 57 11.77 -43 23 04.8           SNIIb 59 1

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