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Does the occurance of AGNs depend on environment?

April 26, 2017agns depend Environment occurance

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Does the occurance of AGNs depend on environment?

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Certainly the occurance of AGNs depends on pulling gas from the outer, kpc-scale regions of the disk to the inner regions, but it’s not at all clear how this is done (see astro-ph/0407068 and astro-ph/0408282 for very nice overviews). The occurance of AGNs also does not seem to depend on mergers or galaxy-galaxy interactions (de Robertis, Yee, & Hayhoe 1998), but this is still debated (Krongold, Dultzin-Hacyan, & Marziani 2002).