Published April 1990
| Version v1
Journal article
The high-luminosity BL Lacertae object PKS 0823 - 22
Description
Simultaneous IR, optical, and UV observations of the BL Lac object PKS 0823 - 22 are presented. The identification of the observed absorption doublet at 5341 and 5355 A with Mg II 2796 and 2803 A gives an absorption redshift z(abs) = 0.910. At this redshift, the object is one of the most luminous of its class with M(V) less than about -29.4. The spectral flux distribution of the source and the properties of intervening absorbing matter are discussed. Analogies with other sources suggest that the object may be gravitationally lensed. 29 refs
Additional details
Publishing Information
- Journal Title
- Astrophysical Journal
- Journal Volume
- 353
- Series
- Astrophys. J.
- Journal Page Range
- 114-117
- ISSN
- 0004-637X
- CODEN
- ASJOA
INIS
- Country of Publication
- United States
- Country of Input or Organization
- United States
- INIS RN
- 21069398
- Subject category
- S79: ASTROPHYSICS, COSMOLOGY AND ASTRONOMY;
- Descriptors DEI
- ABSORPTION SPECTRA; BL LACERTAE OBJECTS; CHARGE-COUPLED DEVICES; ENERGY SPECTRA; GRAVITATIONAL LENSES; INFRARED RADIATION; LUMINOSITY; RED SHIFT; SPECTROSCOPY; ULTRAVIOLET RADIATION; VISIBLE RADIATION
- Descriptors DEC
- COSMIC RADIO SOURCES; COSMIC RAY SOURCES; COSMIC X-RAY SOURCES; ELECTROMAGNETIC RADIATION; LENSES; OPTICAL PROPERTIES; PHYSICAL PROPERTIES; RADIATIONS; SEMICONDUCTOR DEVICES; SPECTRA