AGN populations in compact groups of galaxies

DOI: 
10.1017/S1743921314004219
Publication date: 
01/07/2014
Main author: 
Amirkhanian A.S.
IAA authors: 
Del Olmo, A.;Perea, J.
Authors: 
Amirkhanian A.S., Del Olmo A., Egikian A.G., Tiersch H., Stoll D., Perea J.
Journal: 
Proceedings of the International Astronomical Union
Publication type: 
Article
Volume: 
9
Pages: 
337-338
Number: 
Abstract: 
Compact groups of galaxies (CGG) have revealed some interesting problems from their origin and lifetime to the evolution of their members in such dense configurations. Some authors suppose that CGG probably are the best location for AGNs in the local Universe. According to our preliminary data about 7-10% of member galaxies in Shahbazian compact groups (SHCGs) are emission-line galaxies including the broad-line AGN and the narrow emission-line galaxies. Shahbazian 355/4 is a classical Seyfert 1 galaxy at the same redshift as host group. Moreover Shahbazian 278/4 is also a broad-line AGN in an early-type galaxy. This is the first emission-line object in SHCGs. Meanwhile there is no Seyfert 1 galaxy among the spectroscopically investigated galaxies in the South compact groups, although more than 70% of the member galaxies in these groups probably have an active nucleus. The UZC- compact groups have an excess of Seyfert 2s (but not Seyfert 1s!). Further observational studies are necessary to understand such and many other questions related to the puzzle of CGG. Copyright © International Astronomical Union 2014.
Database: 
SCOPUS
ADS
URL: 
https://ui.adsabs.harvard.edu/#abs/2014IAUS..304..337A/abstract
ADS Bibcode: 
2014IAUS..304..337A
Keywords: 
AGN; Shahbazian groups; Starburst galaxies