TheVirgocentric flow(VCF) is the preferred movement ofLocal Groupgalaxiestowards theVirgo cluster[1]caused by its overwhelminggravity,which separatesboundobjects from theHubble flowofcosmic expansion.The VCF can refer to the Local Group's movement towards theVirgo Cluster,[2]since its center is considered synonymous with the Virgo cluster, but more tedious to ascertain due to its much larger volume. The excess velocity of Local Group galaxies towards, and with respect to, the Virgo Cluster are 100 to 400 km/s.[3]This excess velocity is referred to as each galaxy'speculiar velocity.
See also
editReferences
edit- ^Chernin, A. D.; Karachentsev, I. D.; Nasonova, O. G.; et al. (September 2010)."Dark energy domination in the Virgocentric flow".Astronomy and Astrophysics.520:id.A104.arXiv:1006.0555.Bibcode:2010A&A...520A.104C.doi:10.1051/0004-6361/201014912.S2CID118464732.Retrieved30 November2014.
- ^Yahil, Amos (1986). "Is the Criticism of the Virgocentric Flow Model Justified?". InMadore, Barry F.;Tully, R. Breant(eds.).Galaxy Distances and Deviations from Universal Expansion.NATO ASI Series. Springer Netherlands. pp.143–145.doi:10.1007/978-94-009-4702-3_26.ISBN978-94-009-4702-3.
- ^"The Virgo Cluster of Galaxies".
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