Astronomy and Astrophysics – Astronomy
Scientific paper
May 2008
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008jsara...2...39t&link_type=abstract
Journal of the Southeastern Association for Research in Astronomy, vol. 2, p. 39-46
Astronomy and Astrophysics
Astronomy
Infrared: Galaxies, Methods: Statistical, Galaxies: Seyfert
Scientific paper
Galaxies with Active Galactic Nuclei (AGN) are expected to host aconsiderable amount of gas and dust that emit strongly in themid-infrared (MIR) and can be related to structures seen in otherbands. This dust can either be associated with the AGN phenomenonitself or concentrated in star formation regions on a variety ofscales. We quantify and examine the spatial cross-correlation ofthe extended structure (>100pc from nucleus) in various emissionline images, X-ray images, and MIR images of a sample of five Seyfertgalaxies. Previous studies have determined that each object inthe sample shows thermal emission from warm dust that is primarilyheated by either the AGN central engine or by star formation. Wecannot define any trends with such a small sample, but we find thatboth varieties have significant correlation between their Paαand MIR images, and the AGN-dominated galaxies usually have significntcorrelation between their OIII images and MIR images. We findonly one case of significant correlation between the X-ray and MIRimages, in an object dominated by star formation.
Mason Rachel
Packham Christopher
Perlman Eric
Radomski James
Telesco Charles
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