Host Galaxies of RGB BL Lacertae objects

Details Host Galaxies of RGB BL Lacertae objects Host Galaxies of RGB BL Lacertae objects

Jul 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003aspc..299..303n&link_type=abstract

High Energy Blazar Astronomy, ASP Conference Proceedings, Vol. 299, held 17-21 June 2002 at Tuorla Observatory, Piikkio, Finland

Astronomy and Astrophysics

Astronomy

1

Scientific paper

We present optical R-band imaging of 100 BL Lacertae objects in the ROSAT-Green Bank (RGB) sample. We analyze their host galaxies using a two-dimensional fitting procedure that minimizes the χ2 between the data and the model. We were able to resolve the host galaxy in 62% of the objects. We find the host galaxies to be luminous ellipticals, whose bulk properties are similar to nonactive ellipticals. No correlation is found between the nuclear brightness and the host galaxy brightness, as has been suggested by some previous studies.

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