Far-infrared emission from Shakhbazian Compact Galaxy Groups
Abstract
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.
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.Attached Files
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Additional details
- Eprint ID
- 86249
- Resolver ID
- CaltechAUTHORS:20180507-141343672
- Infrared Processing and Analysis Center (IPAC)
- NASA/JPL/Caltech
- 5-000PE
- Consejo Nacional de Ciencia y Tecnología (CONACYT)
- Deutscher Akademischer Austauschdienst (DAAD)
- TI 215/7-1
- Deutsche Forschungsgemeinschaft (DFG)
- Created
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2018-05-08Created from EPrint's datestamp field
- Updated
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2021-11-15Created from EPrint's last_modified field