A cool and inflated progenitor candidate for the Type Ib supernova 2019yvr at 2.6 yr before explosion

Grants

Funding Acknowledgements

We thank J.J. Eldridge and H. Stevance for helpful comments about our BPASS analysis, J. A. Vilchez, A. Campillay, Y. K. Riveros, and N. Ulloa for help with the Swope observations, as well as R. Carrasco for support of our Gemini-S/GSAOI programme. CDK acknowledges support through NASA grants in support of Hubble Space Telescope programmes GO-15691 and AR-16136. MRDacknowledges support from the NSERC through grantRGPIN2019-06186, the Canada Research Chairs Program, the Canadian Institute for Advanced Research (CIFAR), and the Dunlap Institute at the University of Toronto. KA was supported by the Danish National Research Foundation (DNRF132) and VILLUM FONDEN Investigator grant (project number 16599). Parts of this research were supported by the Australian Research Council Centre of Excellence for All Sky Astrophysics in 3 Dimensions (ASTRO 3D), through project number CE170100013. DOJ was supported by a Gordon and Betty Moore Foundation postdoctoral fellowship at the University of California, Santa Cruz. Support for this work was provided by NASA through the NASA Hubble Fellowship grant HF2-51462.001 awarded by the Space Telescope Science Institute, which is operated by the Association of Universities for Research in Astronomy, Inc., for NASA, under contract NAS5-26555. The UCSC team is supported in part by NASA grant NNG17PX03C, NASA grants in support of Hubble Space Telescope programmes AR-14296 and GO-16239 through STScI, NSF grant AST-1815935, the Gordon and Betty Moore Foundation, the Heising-Simons Foundation, and by a fellowship from the David and Lucile Packard Foundation to RJF. JH was supported by a VILLUM FONDEN Investigator grant (project number 16599). WJG is supported by the National Science Foundation Graduate Research Fellowship Program under Grant No. DGE-1842165. RM acknowledges support by the National Science Foundation under Award No. AST-1909796. RM acknowledges support by the National Science Foundation under Awards No. AST-1909796 and AST-1944985. RM is a CIFAR Azrieli Global Scholar in the Gravity & the Extreme Universe Program, 2019 and a Alfred P. Sloan Fellow in Physics, 2019. The Margutti team at Northwestern is partially funded by the HeisingSimons Foundation under grant #2018-0911 (PI: Margutti). ERR is supported by the Heising-Simons Foundation, the Danish National Research Foundation (DNRF132) and NSF. Based on observations obtained at the Gemini Observatory, which is operated by the Association of Universities for Research in Astronomy, Inc., under a cooperative agreement with the NSF on behalf of the Gemini partnership: the National Science Foundation (United States), National Research Council (Canada), CONICYT (Chile), Ministerio de Ciencia, Tecnologia e Innovacion Productiva (Argentina), Ministerio da Ciencia, Tecnologia e Inovacao (Brazil), and Korea Astronomy and Space Science Institute (Republic of Korea). The GeminiS/GSAOI observations in this paper were obtained under program GS-2020A-Q-221 (PI Kilpatrick). Some of the data presented herein were obtained at theW. M. Keck Observatory, which is operated as a scientific partnership among the California Institute of Technology, the University of California, and the National Aeronautics and Space Administration. The Observatory wasmade possible by the generous financial support of the W. M. Keck Foundation. The authors wish to recognize and acknowledge the very significant cultural role and reverence that the summit of Maunakea has always had within the indigenous Hawaiian community. We are most fortunate to have the opportunity to conduct observations from this mountain. This work makes use of observations from the LCO network through program NOAO2019B-004 (PI Kilpatrick). Based on observations made with the NASA/ESA Hubble Space Telescope, obtained from the data archive at the Space Telescope Science Institute. STScI is operated by the Association of Universities for Research in Astronomy, Inc. under NASA contract NAS 5-26555. This work is based in part on observations made with the Spitzer Space Telescope, which was operated by the Jet Propulsion Laboratory, California Institute of Technology under a contract with NASA (AST-1911206 and AST-1852393).