SIMBAD references

2000A&A...357...91F - Astronomy and Astrophysics, volume 357, 91-100 (2000/5-1)

Optical imaging and spectroscopy of BL Lac objects.


Abstract (from CDS):

We present optical images and spectroscopy for a dozen of BL Lac objects. Most of these objects were not previously studied and we give for the first time the properties of their host galaxies. The properties of the new host galaxies are generally consistent with those derived in previous optical studies. We found a case (1101-23) where the external isophotes of the galaxy are clearly boxy. In addition we gathered spectroscopy for several BL Lac objects with unknown redshift and for companion galaxies. This allowed us to derive a tentative redshift for two new BL Lacs and to investigate the environment around PKS 0829+04. These data complement existing data available in the literature on host galaxies of BL Lacs and their (close) environments.

Abstract Copyright:

Journal keyword(s): galaxies: active - galaxies: BL Lacertae objects: general - galaxies: interactions - galaxies: nuclei - galaxies: photometry - galaxies: structure

Nomenclature: Fig.6: [PFT94] PKS 0829+046 GN (Nos G3-G4) added.

CDS comments: Galaxies are already known in figures and text: G1 and G2 in PKS 0301-243 = [PFT95] PKS 0301-243 G1 and G2, G in PKS 0735+178 = [SFK93] 0735+178 G1, G1 in PKS 0734+100 = [PFT95] PKS 0734+100 G1, G1 to G2 in PKS 0829+046 = [PFT94] PKS 0829+046 G1 to G2.

Simbad objects: 24

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