Published March 1, 1986 | Version v1
Journal article Metadata-only

PKS 2005-489; a very bright BL Lac object in a nearby galaxy

Creators

  • 1. Royal Greenwich Observatory, Hailsham (UK)
  • 2. European Southern Observatory, Garching (Germany, F.R.)
  • 3. Leicester Univ. (UK). Dept. of Physics
  • 4. European Space Agency, Madrid (Spain). Villafranca Satellite Tracking Station

Description

The galaxy identified with the flat-spectrum radio source PKS2005-489 has a bright and variable stellar nucleus with a brightest observed V magnitude of approx. 13. Reported here are radio, optical, UV and X-ray observations which indicate variability and power-law continua in each of these wavebands, leading to the conclusion that PKS2005-489 is one of the brightest BL Lac objects known. The ultraviolet data show unusually strong absorption lines formed in the interstellar medium of our Galaxy, but no obvious features due to the host galaxy. The X-ray output in the range 0.04-6keV is far in excess of a simple power-law extrapolation from lower frequencies. (author)

Additional details

Publishing Information

Journal Title
Mon. Not. R. Astron. Soc.
Journal Volume
219
Journal Issue
1
Series
Mon. Not. R. Astron. Soc.
Journal Page Range
23P-29P
ISSN
0035-8711
CODEN
MNRAA

INIS

Country of Publication
United Kingdom
Country of Input or Organization
United Kingdom
INIS RN
17046248
Subject category
S79: ASTROPHYSICS, COSMOLOGY AND ASTRONOMY;
Resource subtype / Literary indicator
Numerical Data
Descriptors DEI
ABSORPTION SPECTRA; BL LACERTAE OBJECTS; BRIGHTNESS; COSMIC RADIO SOURCES; EMISSION SPECTRA; EXPERIMENTAL DATA; GALAXIES; GALAXY NUCLEI; ULTRAVIOLET SPECTRA; VARIATIONS; VISIBLE SPECTRA
Descriptors DEC
COSMIC RAY SOURCES; COSMIC X-RAY SOURCES; DATA; INFORMATION; NUMERICAL DATA; OPTICAL PROPERTIES; PHYSICAL PROPERTIES; SPECTRA