Sign on
ADS Classic will be deprecated in May 2019 and retired in October 2019. Please redirect your searches to the new ADS modern form or the classic form. More info can be found on our blog.

SAO/NASA ADS Astronomy Abstract Service

· Find Similar Abstracts (with default settings below)
· Full Refereed Journal Article (PDF/Postscript)
· Full Refereed Scanned Article (GIF)
· References in the article
· Citations to the Article (414) (Citation History)
· Refereed Citations to the Article
· SIMBAD Objects (34)
· NED Objects (34)
· Associated Articles
· Also-Read Articles (Reads History)
· Translate This Page
The complete sample of 1 Jansky BL Lacertae objects. I - Summary properties
Stickel, M.; Padovani, P.; Urry, C. M.; Fried, J. W.; Kuehr, H.
AA(Max-Planck-Institut für Astronomie, Heidelberg, Germany), AB(Space Telescope Science Institute, Baltimore, MD), AC(Space Telescope Science Institute, Baltimore, MD), AD(Max-Planck-Institut für Astronomie, Heidelberg, Germany), AE(Max-Planck-Institut für Astronomie, Heidelberg, Germany)
Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 374, June 20, 1991, p. 431-439. (ApJ Homepage)
Publication Date:
NASA/STI Keywords:
Bl Lacertae Objects, Emission Spectra, Gravitational Lenses, Radio Sources (Astronomy), Sky Surveys (Astronomy), Brightness Distribution, Galactic Radiation, Red Shift
Bibliographic Code:


The first well-defined, homogeneous radio sample of 34 BL Lac objects selected from a large-area survey of sources brighter than 1 Jy at 5 GHz is presented. Extensive optical spectroscopy reveals weak emission lines in roughly 3/4 of the 34 BL Lac objects in the sample. Optical imaging reveals that the nearby BL Lac objects are not stellar, and that the surface brightness distribution of the surrounding fuzz is consistent with the host galaxies being bright ellipticals. The results suggest that gravitational lensing may affect three of the 17 high-redshift BL Lac objects in the sample. The observations do not support a microlensing scenario for the low-redshift objects.

Associated Articles

Part  1     Part  2    

Printing Options

Print whole paper
Print Page(s) through

Return 600 dpi PDF to Acrobat/Browser. Different resolutions (200 or 600 dpi), formats (Postscript, PDF, etc), page sizes (US Letter, European A4, etc), and compression (gzip,compress,none) can be set through the Printing Preferences

More Article Retrieval Options

HELP for Article Retrieval

Bibtex entry for this abstract   Preferred format for this abstract (see Preferences)

Find Similar Abstracts:

Use: Authors
Keywords (in text query field)
Abstract Text
Return: Query Results Return    items starting with number
Query Form
Database: Astronomy
arXiv e-prints