Inventorying and Investigating Aromatic Emission in the Local Universe

Details Inventorying and Investigating Aromatic Emission in the Local Universe Inventorying and Investigating Aromatic Emission in the Local Universe

May 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008aas...212.1907m&link_type=abstract

American Astronomical Society, AAS Meeting #212, #19.07; Bulletin of the American Astronomical Society, Vol. 40, p.216

Statistics

Methodology

Scientific paper

We present recent efforts to inventory and investigate the total aromatic (PAH) emission in the local universe. The Spitzer Space Telescope Local Volume Legacy (LVL) has yielded near-infrared (IRAC) and mid-infrafred (MIPS) photometry of a volume-complete sample of 250 galaxies within 11 Mpc. We have measured the strength of the aromatic emission features in the 7.7 micron complex for these galaxies using an improved photometric methodology based on the IRAC 4.5 and 8 micron and the MIPS 24 micron bands. The reliability of this technique is demonstrated, and aromatic emission strength as a function of environment in the local universe (e.g., galaxy type, star formation intensity, and metallicity) is investigated.

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