• Source: Hickson Compact Group

A Hickson Compact Group (abbreviation: HCG) is a collection of galaxies designated as published by Paul Hickson in 1982.
The most famous group on Hickson's list of 100 objects is HCG 92, Stephan's Quintet.




Hickson Compact Groups


According to Hickson: “Most compact groups contain a high fraction of galaxies having morphological or kinematical peculiarities, nuclear radio and infrared emission, and starburst or active galactic nuclei (AGN) activity. They contain large quantities of diffuse gas and are dynamically dominated by dark matter. They most likely form as subsystems within looser associations and evolve by gravitational processes. Strong galaxy interactions result and merging is expected to lead to the ultimate demise of the group. Compact groups are surprisingly numerous, and may play a significant role in galaxy evolution.”




List






Gallery







































See also



Abell catalogue
Catalogue of Galaxies and Clusters of Galaxies




References






Further reading


Paul Hickson (15 April 1982). "Systematic properties of compact groups of galaxies". Astrophysical Journal, Part 1. 255: 382–391. Bibcode:1982ApJ...255..382H. doi:10.1086/159838.
Paul Hickson (25 October 1997). "Compact Groups of Galaxies". Annual Review of Astronomy and Astrophysics. 35: 357–388. arXiv:astro-ph/9710289. Bibcode:1997ARA&A..35..357H. doi:10.1146/annurev.astro.35.1.357. S2CID 18870169.




External links



Astronomy Picture of the Day – Galaxy Group Hickson 31 – 22 February 2010

Kata Kunci Pencarian:

• Grup galaksi
• Hickson Compact Group
• Galaxy group
• HCG 87
• Stephan's Quintet
• NGC 3718
• Hickson 40
• NGC 7320c
• HCG
• NGC 7609
• NGC 3848