NOAO >   Observing Info >   Approved Programs >   2012A-0223

Small NOAO Logo

Proposal Information for 2012A-0223


PI: Jennifer Andrews, University of Massachusetts, jandrews@astro.umass.edu
Address: Department of Astronomy, Laderle Graduate Research Tower B 619E, 710 North Pleasant Street , Amherst, MA 01003, USA

CoI: Geoffrey Clayton, Louisiana State University
CoI: Roger Wesson, University College London
CoI: Michael Barlow, University College London
CoI: Joseph Gallagher, University of Cincinnati Raymond Walters College
CoI: Ben Sugerman, Goucher College
CoI: Barbara Ercolano, Ludwig-Maximilians-Universitaet
CoI: Margaret Meixner, STScI
CoI: Masaaki Otsuka, STScI
CoI: Douglas Welch, McMaster University

Title: Dust Formation and Circumstellar Medium Interaction in Two Massive, Bright Core-Collapse SNe, 2010jl and 2011fh

Abstract: Recent studies of core-collapse supernovae (CCSNe) have shown that they typically produce 10^-3 to 10^-4 M(sun) of dust within the first few years after explosion, too little to be significant sources for interstellar dust seen in high-redshift early-time galaxies. The recent bright Type IIn SNe 2010jl and 2011fh are fascinating test cases. They may be more massive than any previously studied CCSNe, and both have a significant circumstellar medium (CSM). For instance, SN 2010jl may have a progenitor mass > 30 M(sun) and an estimated CSM mass much greater than 3 M(sun). These factors may lead to enhanced dust formation. We are proposing GMOS and T-ReCS observations of SNe 2010jl and 2011fh to look for signs of dust formation in the ejecta or between the forward and reverse shocks from the CSM interaction. We are already monitoring the two SNe with JHK photometry, and are observing SN 2010jl with Spitzer in Cycle 7 and Cycle 8. In addition, we will be proposing observations of the two with Hubble Space Telescope (Cycle 20).


National Optical Astronomy Observatory, 950 North Cherry Avenue, P.O. Box 26732, Tucson, Arizona 85726, Phone: (520) 318-8000, Fax: (520) 318-8360



NOAO >   Observing Info >   Approved Programs >   2012A-0223

noaoprop-help@noao.edu

Small NOAO Logo