Revealing the progenitor of SN 2021zby through analysis of the $TESS$ shock-cooling light curve

Abstract

We present early observations and analysis of the double-peaked Type IIb supernova (SN IIb) 2021zby. $TESS$ captured the prominent early shock cooling peak of SN 2021zby within the first $\sim$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 multi-band 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 $\sim$0.3-3.0 M${}_{\odot }$ and an envelope radius of $\sim$50-350$R_{\odot }$. These inferred progenitor properties are similar to those of other SNe IIb with double-peak 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 multi-band observations, especially UV, is also necessary to fully constrain the progenitor properties.

12 pages, 5 figures, 2 tables, submitted to ApJL

References in corpus (24)

• Array Programming with NumPy
• Binary interaction dominates the evolution of massive stars
• The K2 Mission: Characterization and Early results
• PESSTO : survey description and products from the first data release by the Public ESO Spectroscopic Survey of Transient Objects
• Design and operation of the ATLAS Transient Science Server
• SN 2006jc: A Wolf-Rayet Star Exploding in a Dense He-Rich Circumstellar Medium
• Energetic eruptions leading to a peculiar hydrogen-rich explosion of a massive star
• Final Moments I: Precursor Emission, Envelope Inflation, and Enhanced Mass loss Preceding the Luminous Type II Supernova 2020tlf
• A Blue Point Source at the Location of Supernova 2011dh
• A Cool and Inflated Progenitor Candidate for the Type Ib Supernova 2019yvr at 2.6 Years Before Explosion
• Constraints on the Progenitor of SN 2016gkg From Its Shock-Cooling Light Curve
• The progenitor and early evolution of the Type IIb SN 2016gkg
• Shock Cooling Emission from Extended Material Revisited
• Effects of winds on the leftover hydrogen in massive stars following Roche lobe overflow
• Carnegie Supernova Project-II: Near-infrared Spectroscopy of Stripped-Envelope Core-Collapse Supernovae
• Statistical properties of the nebular spectra of 103 stripped envelope core collapse supernovae
• Nebular phase properties of supernova Ibc from He-star explosions
• How much hydrogen is in Type Ib and IIb supernova progenitors?
• The Luminous and Double-Peaked Type Ic Supernova 2019stc: Evidence for Multiple Energy Sources
• Progenitors of Type IIb Supernovae: II. Observable Properties
• Updated Photometry of the Yellow Supergiant Progenitor and Late-time Observations of the Type IIb Supernova 2016gkg
• SN2017jgh - A high-cadence complete shock cooling lightcurve of a SN IIb with the Kepler telescope
• SN 2018agk: A Prototypical Type Ia Supernova with a Smooth Power-law Rise in Kepler (K2)
• High Cadence TESS and ground-based data of SN 2019esa, the less energetic sibling of SN 2006gy

Cited by in corpus (3)

• Shock-cooling Constraints via Early-time Observations of the Type IIb SN 2022hnt
• Early Light Curve Excess in Type IIb Supernovae Observed by the ATLAS Survey: Qualitative Constraints on Progenitor Systems
• Searching for Gravitational-Wave Counterparts using the Transiting Exoplanet Survey Satellite