Clustering environments of BL Lac objects

Details Clustering environments of BL Lac objects Clustering environments of BL Lac objects

Sep 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993aj....106..869w&link_type=abstract

Astronomical Journal (ISSN 0004-6256), vol. 106, no. 3, p. 869-874.

Astronomy and Astrophysics

Astronomy

21

Bl Lacertae Objects, Galactic Clusters, Radio Galaxies, Astronomical Models, Charge Coupled Devices, Color-Magnitude Diagram, Elliptical Galaxies, Red Shift

Scientific paper

We report measurements of the amplitude of the BL Lac galaxy spatial covariance function, B(gb), for the fields of five BL Lacertae objects. We present evidence for rich clusters around MS 1207+39 and MS 1407+59, and confirm high richness for the cluster containing H0414+009. We discuss the ease of 3C 66 A and find evidence for a poor cluster based on an uncertain redshift of z = 0.444. These data suggest that at least some BL Lac objects are consistent with being FR 1 radio galaxies in rich clusters.

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