Astronomy and Astrophysics – Astronomy
Scientific paper
Jan 2010
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010aas...21546336f&link_type=abstract
American Astronomical Society, AAS Meeting #215, #463.36; Bulletin of the American Astronomical Society, Vol. 36, p.1116
Astronomy and Astrophysics
Astronomy
Scientific paper
The nearby spiral galaxy M83 has been observed using the Wide Field Camera 3 (WFC3) as part of the Early Release Science (ERS) program. Seven broad-band filters (including the near-IR filters, F110W and F160W) and seven emission-line filters (including the near IR filters, F128N and F164N) have been used to obtain full panchromatic wavelength coverage of M83. In this contribution the near-IR filters are used in concert with the visible and near-UV filters to determine the fraction of "missing" compact star clusters which are still embedded in dust (i.e., Av > 3 magnitudes). A secondary goal is to determine the degree of stochasticity in age and mass estimates introduced by the presence (or absence) of red super giants (RSG) by comparing with extant simulations. A third goal is to study the presence of known SNRs, and identify new reddened SNRs, with the aid of the continuum-subtracted narrowband filters F128N and F164N. Special attention will be paid to the central region and the properties of the nucleus. This paper is based on Early Release Science observations made by the WFC3 Scientific Oversight Committee. We are grateful to the Director of the Space Telescope Science Institute for awarding Director's Discretionary time for this program. Support for program #11360 was provided by NASA through a grant from the Space Telescope Science Institute, which is operated by the Association of Universities for Research in Astronomy, Inc., under NASA contract NAS 5-26555.
Blair William Patrick
Bushouse Howard
Calzetti Daniela
Chandar Rupali
Ferguson Brian A.
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