Analysing frequency and nature of nuclear activity in two samples of Compact Groups (CGs) of galaxies we have found a remarkable deficiency of Broad Line AGNs as compared to Narrow Line AGns. The cause of such deficeincy may be related to the environment typical of these associations and to the average low luminosity of AGNs in CGs (10^39 erg/s) that imply lower accretion rates in CG AGNs , making BLR undetectable or absent.

Relationship between AGNs and Environment. Deficiency of BLAGNs in Compact Groups.

FOCARDI, PAOLA
2010

Abstract

Analysing frequency and nature of nuclear activity in two samples of Compact Groups (CGs) of galaxies we have found a remarkable deficiency of Broad Line AGNs as compared to Narrow Line AGns. The cause of such deficeincy may be related to the environment typical of these associations and to the average low luminosity of AGNs in CGs (10^39 erg/s) that imply lower accretion rates in CG AGNs , making BLR undetectable or absent.
Galaxies in isolation. Exploring Nature vs. Nurture.
125
128
Martinez A.; del Olmo A.; Coziol J.; Perea J.; Focardi P.
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11585/79520
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