The megaparsec-scale environments of BL Lacertae objects

Details The megaparsec-scale environments of BL Lacertae objects The megaparsec-scale environments of BL Lacertae objects

Mar 1995

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995apj...441..113s&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 441, no. 1, p. 113-119

Astronomy and Astrophysics

Astrophysics

24

Active Galactic Nuclei, Bl Lacertae Objects, Galactic Clusters, Galactic Evolution, Radio Galaxies, Astronomical Models, Astronomical Photometry, Astronomical Spectroscopy, Elliptical Galaxies, Optical Polarization, Red Shift

Scientific paper

We compare observations of BL Lac megaparsec-scale clustering environments with those for F-R I radio galaxies V and R image data are used to show that the strengths of the clustering measured via spatial cross-correlation amplitude are similar for the two types of galaxies and are consistent with Abel richness class 0. We discuss the implications this has for the origin of the BL Lac phenomena. We also examine the evolution of clustering environments of F-R I radio galaxies and BL Lac objects with redshift.

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