Abstract
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 ∼ 50-290R⊙, and an envelope mass of ∼ 0-1.7M⊙. 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 ∼ 50-330R⊙, an envelope mass of ∼ 0.3-1.7M⊙ 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.
Original language | English |
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Pages (from-to) | 3125-3138 |
Number of pages | 14 |
Journal | Monthly Notices of the Royal Astronomical Society |
Volume | 507 |
Issue number | 3 |
DOIs | |
State | Published - 1 Nov 2021 |
Funding
Funders | Funder number |
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Ministerio de Ciencia, Innovación y Universidades | |
Israeli Council for Higher Education Alon Fellowship | |
Eötvös Loránd Tudományegyetem | |
Canada Research Chairs Program | |
University of Edinburgh | |
Johns Hopkins University | |
Australian Research Council Centre of Excellence | |
Max-Planck-Gesellschaft | |
Horizon 2020 Framework Programme | |
National Central University of Taiwan | |
United States-Israel Binational Science Foundation | |
Heising-Simons Foundation | |
Agencia Nacional de Investigacion y Desarrollo | |
Durham University | |
University of Maryland | |
Ministério da Ciência e Tecnologia | |
Queen's University Belfast | |
United States - Israel Binational Science Foundation | |
Ministerio de Ciencia, Tecnologia e Innovacion | |
Max Planck Institute for Astronomy | |
Smithsonian Astrophysical Observatory | |
Canadian Institute for Advanced Research | |
Magyar Tudományos Akadémia | |
European Research Council | |
Max Planck Institute for Extraterrestrial Physics | |
National Research, Development and Innovation Office | |
National Research Council Canada | |
Horizon 2020 | |
Gordon and Betty Moore Foundation | |
University of Toronto | DGE1339067 |
National Aeronautics and Space Administration | NNX17AI64G, 80NSSC18K0302, NNX14AM74G, 80NSSC19K0112, NNX12AT65G |
National Science Foundation | AST-2008108, AST- 1911074, 1339067, 852097, AST-1813176, 1911074, AST-1920392, HST-HF2-51458.001-A, AST- 1238877 |
Los Alamos National Laboratory | NOAO 2017B-0279, NOAO 2017B-0285 |
Natural Sciences and Engineering Research Council of Canada | grantRGPIN- 2019-06186 |
Space Telescope Science Institute | NNX08AR22G |
Australian Research Council | CE170100013 |
NASA/K2 | 80NSSC18K0303, 80NSSC19K0113 |
MICIU | 80NSSC19K1717, PID2020-115253GA-I00, RYC2019-027683 |
Nemzeti Kutatási Fejlesztési és Innovációs Hivatal | NKFIH PD-134784 |
Israel Science Foundation | 2752/19 |
Academy of Sciences | GINOP 2.3.2-15- 2016-00033 |
European Commission | AST-1911151, AYA2017-84089, AST-1615455, 80NSSC19K0119, AST- 1911225 |
Korea Astronomy and Space Science Institute | GS-2017B-LP-13 |
David and Lucile Packard Foundation | HST-HF2-51462.001, NAS5-26555 |
Keywords
- shock waves
- supernovae: general
- supernovae: individual
- transients: supernovae