1. Confined Dense Circumstellar Material Surrounding a Regular Type II Supernova: The Unique Flash-Spectroscopy Event of SN 2013fs
- Author
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Yaron, O., Perley, D. A., Gal-Yam, A., Groh, J. H., Horesh, A., Ofek, E. O., Kulkarni, S. R., Sollerman, J., Fransson, C., Rubin, A., Szabo, P., Sapir, N., Taddia, F., Cenko, S. B., Valenti, S., Arcavi, I., Howell, D. A., Kasliwal, M. M., Vreeswijk, P. M., Khazov, D., Fox, O. D., Cao, Y., Gnat, O., Kelly, P. L., Peter Nugent, Filippenko, A. V., Laher, R. R., Wozniak, P. R., Lee, W. H., Rebbapragada, U. D., Maguire, K., Sullivan, M., and Soumagnac, M. T.
- Subjects
High Energy Astrophysical Phenomena (astro-ph.HE) ,FOS: Physical sciences ,Astrophysics - High Energy Astrophysical Phenomena - Abstract
With the advent of new wide-field, high-cadence optical transient surveys, our understanding of the diversity of core-collapse supernovae has grown tremendously in the last decade. However, the pre-supernova evolution of massive stars, that sets the physical backdrop to these violent events, is theoretically not well understood and difficult to probe observationally. Here we report the discovery of the supernova iPTF13dqy = SN 2013fs, a mere ~3 hr after explosion. Our rapid follow-up observations, which include multiwavelength photometry and extremely early (beginning at ~6 hr post-explosion) spectra, map the distribution of material in the immediate environment (, Comment: Published in Nature Phys., including methods and SI
- Published
- 2017
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