A redshift survey of the poor cluster A1142

Details A redshift survey of the poor cluster A1142 A redshift survey of the poor cluster A1142

Mar 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984aj.....89..319g&link_type=abstract

Astronomical Journal (ISSN 0004-6256), vol. 89, March 1984, p. 319-322.

Other

30

Galactic Clusters, Red Shift, Astrometry, Astronomical Catalogs, Luminosity, Mass To Light Ratios

Scientific paper

The authors' nearly complete redshift survey of the galaxy cluster A1142 includes 63 new redshifts. In the 2-sq deg survey region only about 60% of the galaxies brighter than mv = 16.5 are cluster members. The foreground/background contamination gives the illusion of substructure in the galaxy distribution. After isolating and removing this contamination, the authors derive a mass-to-light ratio for A1142 of M/Lv = 410 M_sun;/L_sun; or M/LB(0) = 520 M_sun;/L_sun; (H0 = 100 km s-1 Mpc-1). This result is consistent with the values for other well-studied systems of galaxies.

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