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Are compact groups of galaxies physically dense?

1986; IOP Publishing; Volume: 307; Linguagem: Inglês

10.1086/164431

1538-4357

G. A. Mamon,

Scientific Research and Discoveries

view Abstract Citations (150) References (26) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS Are Compact Groups of Galaxies Physically Dense? Mamon, G. A. Abstract The properties of the compact groups of galaxies cataloged by Hickson (1982) are compared to the output of over 1000 numerical simulations of small groups of galaxies. Rather than being dense physical systems or transient unbound cores of loose groups, it is argued that roughly half of the compact groups in Hickson's catalog are simply chance alignments of galaxies within loose groups. Publication: The Astrophysical Journal Pub Date: August 1986 DOI: 10.1086/164431 Bibcode: 1986ApJ...307..426M Keywords: Astrophysics; Galactic Clusters; Space Density; Density Distribution; Random Processes; Astrophysics; GALAXIES: CLUSTERING; GALAXIES: GENERAL full text sources ADS |