Published October 1989
| Version v1
Journal article
A search for closely spaced gravitational lenses
- 1. National Research Council of Canada, Herzberg Institute of Astrophysics, Ottawa (Canada)
- 2. Dominion Astrophysical Observatory, Victoria (Australia)
Description
A new image-stabilizing camera was used to search for closely spaced images of a sample of 25 intrinsically luminous quasars with z greater than 1.6 and m smaller than 19. Observations of seven similarly selected quasars with the regular CCD camera in good seeing conditions are also reported. Of the 32 quasars, seven are gravitational lens candidates. Two of these have subarcsecond separations. Additional information on all these candidates is required. 22 refs
Additional details
Publishing Information
- Journal Title
- Astronomical Journal
- Journal Volume
- 98
- Series
- Astron. J.
- Journal Page Range
- 1188-1194
- ISSN
- 0004-6256
- CODEN
- ANJOA
INIS
- Country of Publication
- United States
- Country of Input or Organization
- United States
- INIS RN
- 21034022
- Subject category
- S79: ASTROPHYSICS, COSMOLOGY AND ASTRONOMY;
- Descriptors DEI
- CAMERAS; CHARGE-COUPLED DEVICES; GRAVITATIONAL LENSES; IMAGES; INDEXES; PHOTOGRAPHY; QUASARS; RED SHIFT
- Descriptors DEC
- COSMIC RADIO SOURCES; DOCUMENT TYPES; LENSES; SEMICONDUCTOR DEVICES