PS1-14abm , the SIMBAD biblio

2023ApJ...943L..15W - Astrophys. J., 943, L15 (2023/February-1)

Revealing the Progenitor of SN 2021zby through Analysis of the TESS Shock-cooling Light Curve.

WANG Q., ARMSTRONG P., ZENATI Y., RIDDEN-HARPER R., REST A., ARCAVI I., KILPATRICK C.D., FOLEY R.J., TUCKER B.E., LIDMAN C., KILLESTEIN T.L., SHAHBANDEH M., ANDERSON J.P., ANGULO R., ASHALL C., BURKE J., CHEN T.-W., VON COELLN S., DALRYMPLE K.A., DAVIS K.W., FULTON M.D., GALBANY L., PADILLA GONZALEZ E., GAO B., GROMADZKI M., HOWELL D.A., IHANEC N., JENCSON J.E., JONES D.O., LYMAN J.D., McCULLY C., MULLER-BRAVO T.E., NEWSOME M., NICHOLL M., O'NEILL D., PELLEGRINO C., REST S., SMARTT S.J., SMITH K., SRIVASTAV S., TERRERAN G., TINYANONT S., YOUNG D.R. and ZENTENO A.

Abstract (from CDS):

We present early observations and analysis of the double-peaked Type IIb supernova (SN IIb) SN 2021zby. TESS captured the prominent early shock-cooling peak of SN 2021zby within the first ∼10 days after explosion with a 30 minute cadence. We present optical and near-infrared spectral series of SN 2021zby, including three spectra during the shock-cooling phase. Using a multiband model fit, we find that the inferred properties of its progenitor are consistent with a red supergiant or yellow supergiant, with an envelope mass of ∼0.30-0.65 M_⊙ and an envelope radius of ∼120-300 R_⊙. These inferred progenitor properties are similar to those of other SNe IIb with a double-peaked feature, such as SNe 1993J, 2011dh, 2016gkg, and 2017jgh. This study further validates the importance of the high cadence and early coverage in resolving the shape of the shock-cooling light curve, while the multiband observations, particularly UV, are also necessary to fully constrain the progenitor properties.

Journal keyword(s): Core-collapse supernovae - Supernovae

VizieR on-line data: <Available at CDS (J/ApJ/943/L15): table2.dat atlas.dat decam.dat tess.dat tess-bin.dat fig1/* fig2/*>

Simbad objects: 12

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