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