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Far-infrared emission from Shakhbazian Compact Galaxy Groups

Tovmassian, H. M. and Mazzarella, J. M. and Tovmassian, G. H. and Stoll, D. and Tiersch, H. (1998) Far-infrared emission from Shakhbazian Compact Galaxy Groups. Astronomy and Astrophysics Supplement Series, 130 (2). pp. 207-214. ISSN 0365-0138. doi:10.1051/aas:1998225.

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Using the IRAS archives, we searched for far-infrared (FIR) counterparts of Shakh bazian Compact Groups of Galaxies (SCGGs). Reliable IRAS detections are identified at the positions of 24 out of 367 SCGGs; another 10 IRAS sources, located within ~2 arcmin of SCGGs, are possibly associated with the corresponding galaxy groups. Some of these sources are not very reliable. Previous work has shown that the fraction of E and S0 galaxies in a representative sample of SCGGs is 77%, while E and S0 galaxies comprise about 51% of galaxies in Hickson Compact Groups (HCGs). The higher fraction of early Hubble types, combined with their greater distances, explains the low IRAS detection rate of SCGGs (7-8%) compared to HCGs (64%). The FIR colors and morphological types of galaxies in the groups suggest that active star formation or Seyfert galaxies may be the main source of the FIR emission in the SCGGs detected by IRAS, perhaps originating as the result of tidal interactions in the dense environments of these groups.

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Mazzarella, J. M.0000-0002-8204-8619
Additional Information:© European Southern Observatory (ESO), 1998. Received November 18, 1997; accepted December 04, 1997. HMT and GHT are grateful to IPAC and JPL for financial support during the work at the IPAC, and to C. Beichman for hospitality. HMT was supported by the CONACYT research grant No. 5-000PE and by the DAAD. JMM was supported by the Jet Propulsion Laboratory, California Institute of Technology, under contract with NASA. HT is grateful to the Government of the land Brandenburg for the support of this work and DS acknowledges the support of the Deutsche Forschungsgemeinschaft, DFG project number TI 215/7-1.
Funding AgencyGrant Number
Infrared Processing and Analysis Center (IPAC)UNSPECIFIED
Consejo Nacional de Ciencia y Tecnología (CONACYT)5-000PE
Deutscher Akademischer Austauschdienst (DAAD)UNSPECIFIED
Deutsche Forschungsgemeinschaft (DFG)TI 215/7-1
Subject Keywords:infrared: galaxies / galaxies: interactions
Issue or Number:2
Record Number:CaltechAUTHORS:20180507-141343672
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Official Citation:Far-infrared emission from Shakhbazian Compact Galaxy Groups H. M. Tovmassian, J. M. Mazzarella, G. H. Tovmassian, D. Stoll and H. Tiersch Astron. Astrophys. Suppl. Ser., 130 2 (1998) 207-214 DOI:
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:86249
Deposited By: George Porter
Deposited On:08 May 2018 15:12
Last Modified:15 Nov 2021 20:36

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