PI: Kelsie Krafton, Louisiana State U., firstname.lastname@example.org
Address: Department of Physics & Astronomy, Nicholson Hall, Baton Rouge, LA, 70803, USA USA
CoI: Geoffrey Clayton, Louisiana State U.
CoI: Jennifer Andrews, U. of Arizona
CoI: Antonia Bevan, University College London
CoI: Michael J Barlow, University College London
CoI: Ben Sugerman, Goucher College
CoI: Margaret Meixner, STScI
CoI: Mikako Matsuura, University College London
CoI: Douglas Welch, McMaster U.
CoI: Roger Wesson, ESO
CoI: Masaaki Otsuka, Subaru Telescope
CoI: Ilse De Looze, University College London
Title: Late-Time Dust Formation in Core-Collapse Supernovae
Abstract: Studies in the last 10 years of dust formation in core-collapse supernovae (CCSNe) have found only small amounts, ~0.001 solar masses. This is far less than the amount needed to account for the large masses of dust seen in some high redshift galaxies. However, the recent discovery of ~1 solar mass of cold dust in the ejecta of SN 1987A has has caused a complete re-evaluation of dust formation in CCSNe. It has been suggested that the CCSNe are continuously forming dust so that by the time they are about 25 years old they will have dust masses similar to SN 1987A. However, there is a wide time gap between the CCSNethat have been studied recently and SN 1987A. We plan to use the high sensitivity of Gemini/GMOS to obtain spectra of a large sample of CCSNe, between 4 and 50 yr after explosion, to test this suggestion. This proposal is a continuation of a project started with Gemini 1 year ago. All of the SNe have previously been observed spectroscopically and should be bright enough to get good S/N emission spectra.
Program Type: Standard/Extragalactic
Run 1 (2016A): GEM-NQ/GMOSN -- 10.4hrs band 3 (GN-2016A-Q-85)
National Optical Astronomy Observatory, 950 North Cherry Avenue, P.O. Box 26732, Tucson, Arizona 85726, Phone: (520) 318-8000, Fax: (520) 318-8360