Mid-infrared Diagnostics Of LINER Activity In The Nucleus Of M81

Details Mid-infrared Diagnostics Of LINER Activity In The Nucleus Of M81 Mid-infrared Diagnostics Of LINER Activity In The Nucleus Of M81

Jan 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009aas...21342013s&link_type=abstract

American Astronomical Society, AAS Meeting #213, #420.13; Bulletin of the American Astronomical Society, Vol. 41, p.238

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We have analyzed Spitzer IRAC, MIPS and IRS data on the nucleus of M81. The data include spectral images in both continuum and lines, and confirm the very unusual spectral energy distribution that we hypothesized in our earlier paper on M81 (Willner et al., ApJS, 154, 222, 2004). We model the unusual SED, compare it with the mid-IR SEDs of other LINERS and with a range of types of galactic nuclei including AGN and elliptical nuclei, and discuss the implications. We also model the atomic and molecular lines seen. We will discuss the origins of these features in the context of LINERs, elliptical galaxies, and the nature of the nuclei of AGN.

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