Astronomy and Astrophysics – Astronomy
Scientific paper
May 2011
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011aas...21832903w&link_type=abstract
American Astronomical Society, AAS Meeting #218, #329.03; Bulletin of the American Astronomical Society, Vol. 43, 2011
Astronomy and Astrophysics
Astronomy
Scientific paper
We use a pixel based method to estimate and map the two dimensional distribution of dust extinction in the nearby interacting galaxy pair NGC 4038/39 (The Antennae).The method, pioneered by Tamura et al. (2009 AJ 138, 1634; 2010 AJ 139, 2557), compares the observed V - band to Spitzer 3.6 µm flux ratio with flux ratios from models of simple stellar populations. Our longer wavelength baseline allows us to improve on the earlier results of Kassin et al. (2003 AJ 126, 1276). Optical and NIR images of NGC 4038 obtained in Ohio State University galaxy survey, GALEX FUV/NUV, and Spitzer/IRAC 3.6, 4.5, 5.8, 8.0 images will be studied through pixel Color - Magnitude Diagrams (pCMDs) and pixel Color - Color Diagrams (pCCDs).
We gratefully acknowledge financial support from the College of Science, Engineering and Technology, and from the College of Graduate Studies at Minnesota State University, Mankato.
Eskridge Paul B.
Wosti Mukund P.
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