Other
Scientific paper
Jan 2011
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011aas...21741702m&link_type=abstract
American Astronomical Society, AAS Meeting #217, #417.02; Bulletin of the American Astronomical Society, Vol. 43, 2011
Other
Scientific paper
I will discuss how the physical properties of dust in nearby galaxies change as we move away from each galaxy's center. Using multi-wavelength data from the Spitzer Infrared Nearby Galaxies survey, we have derived the radial variation of several properties of dust, such as the internal extinction, the dust mass surface density, the abundance of Polycyclic Aromatic Hydrocarbons and the dust-to-gas ratio, among others. These results are part of a larger study, in which the present-day distribution of stars of different ages, gas and dust in nearby galaxies is used as fossil tracer of their past evolution.
Gil de Paz Amando
Muńoz-Mateos Juan Carlos
Zamorano Jaime
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