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 (US) |
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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 - Nov 1 2021 |
Funding
PA and BET acknowledge parts of this research was carried out on the traditional lands of the Ngunnawal people. We pay our respects to their elders past, present, and emerging. This paper includes data collected by the K2 mission. Funding for the K2 mission is provided by the NASA Science Mission directorate. KEGS is supported in part by NASA K2 cycle 4, 5, and 6 grants NNX17AI64G and 80NSSC18K0302, and 80NSSC19K0112, respectively. Pan-STARRS (PS1) is supported in part by the National Aeronautics and Space Administration under grants NNX12AT65G and NNX14AM74G. The PanSTARRS1 Surveys (PS1) and the PS1 public science archive have been made possible through contributions by the Institute for Astronomy, the University of Hawaii, the Pan- STARRS ProjectOffice, the Max-Planck Society and its participating institutes, the Max Planck Institute for Astronomy, Heidelberg and the Max Planck Institute for Extraterrestrial Physics, Garching, The Johns Hopkins University, Durham University, the University of Edinburgh, the Queen's University Belfast, the Harvard-Smithsonian Center for Astrophysics, the Las Cumbres Observatory Global Telescope Network Incorporated, the National Central University of Taiwan, the Space Telescope Science Institute, the National Aeronautics and Space Administration under grant NNX08AR22G issued through the Planetary Science Division of the NASA Science Mission Directorate, the National Science Foundation grant AST- 1238877, the University of Maryland, Eotvos Lorand University (ELTE), the Los Alamos National Laboratory, and the Gordon and Betty Moore FoundationBased on observations at Cerro Tololo Inter- American Observatory, National Optical Astronomy Observatory (NOAO 2017B-0279; PI: A Rest, NOAO 2017B-0285; PI: A Rest), which is operated by the Association of Universities for Research in Astronomy (AURA)under a cooperative agreementwith the National Science Foundation Based on observations obtained at the international Gemini Observatory, which is managed by the Association of Universities for Research in Astronomy (AURA) under a cooperative agreement with the National Science Foundation on behalf of the Gemini Observatory partnership: the National Science Foundation (United States), National Research Council (Canada), Agencia Nacional de Investigacion y Desarrollo (Chile), Ministerio de Ciencia, Tecnologia e Innovacion (Argentina), Ministerio da Ciencia, Tecnologia, Inovacoes e Comunicacoes (Brazil), and Korea Astronomy and Space Science Institute (Republic of Korea). Observations in this program were obtained through program ID GS-2017B-LP-13. PA was supported by an Australian Government Research Training Program (RTP) Scholarship. BET and his group were supported by the Australian Research Council Centre of Excellence for All Sky Astrophysics in 3 Dimensions (ASTRO 3D), through project number CE170100013. TheUCSC transient team is supported in part by NASA/K2 grants 80NSSC18K0303 and 80NSSC19K0113, the Gordon&Betty Moore Foundation, the Heising-Simons Foundation, and by a fellowship from the David and Lucile Packard Foundation to RJF. DOJ acknowledges support provided by NASA Hubble Fellowship grant HST-HF2-51462.001, which is awarded by the Space Telescope Science Institute, operated by the Association of Universities for Research in Astronomy, Inc., for NASA, under contract NAS5-26555. IA is a CIFAR Azrieli Global Scholar in the Gravity and the Extreme Universe Program and acknowledges support from that program, from the European Research Council (ERC) under the European Union's Horizon 2020 research and innovation programme (grant agreement number 852097), from the Israel Science Foundation (grant number 2752/19), from the United States - Israel Binational Science Foundation (BSF), and from the Israeli Council for Higher Education Alon Fellowship. MRDacknowledges support from the NSERC through grantRGPIN- 2019-06186, the Canada Research Chairs Program, the Canadian Institute for Advanced Research (CIFAR), and the Dunlap Institute at the University of Toronto. DAC acknowledges support from the National Science Foundation Graduate Research Fellowship under Grant DGE1339067. This project has been supported by the LP2018-7 Lendulet grant of the Hungarian Academy of Sciences. LG acknowledges financial support from the Spanish Ministry of Science, Innovation and Universities (MICIU) under the 2019 Ramon y Cajal program RYC2019-027683 and from the Spanish MICIU project PID2020-115253GA-I00. BJS is supported byNASA grant 80NSSC19K1717 and NSF grants AST-1920392 and AST- 1911074. Support for TWSH was provided by NASA through the NASA Hubble Fellowship grant HST-HF2-51458.001-A awarded by the Space Telescope Science Institute, which is operated by the Association of Universities for Research in Astronomy, Inc., for NASA, under contractNAS5-26555. Research by SV is supported by NSF grants AST-1813176 and AST-2008108. LK acknowledges the financial support of the Hungarian National Research, Development and Innovation Office grant NKFIH PD-134784. LK and ZsB are supported by the J`anos Bolyai Research Scholarship of theHungarian Academy of Sciences. The Konkoly team has been supported by the project 'Transient Astrophysical Objects' GINOP 2.3.2-15- 2016-00033 of the National Research, Development and Innovation Office (NKFIH), Hungary, funded by the European Union. SWJ acknowledges support from US National Science Foundation award AST-1615455. This research has made use of the SVO Filter Profile Service (http://svo2.cab.inta-csic.es/theory/fps/) supported from the SpanishMINECO through grant AYA2017-84089. The LCO team is supported by NASA grant 80NSSC19K0119 and NSF grants AST- 1911225 and AST-1911151.
Keywords
- shock waves
- supernovae: general
- supernovae: individual
- transients: supernovae
ASJC Scopus subject areas
- Astronomy and Astrophysics
- Space and Planetary Science