Published July 1988 | Version v1
Journal article Metadata-only

1343.4+2640 - a close quasar pair

Creators

  • 1. Ohio State Univ., Columbus (USA)
  • 2. British Columbia Univ., Vancouver (Canada)
  • 3. Arizona State Univ., Tempe (USA)
  • 4. Dominion Astrophysical Observatory, Victoria (Canada)

Description

Two quasars of virtually identical redshift separated by 9.5 arcsec have been discovered on a CFHT grens plate. Subsequent spectroscopy reveals substantial differences in their spectral line strengths which appear to be incompatible with a gravitational lens hypothesis. Furthermore, deep CCD images of the field do not show any indication of a lensing galaxy or extended Ly-alpha emission. It is likely that these quasars are a physically related pair, possibly residing in a cluster of galaxies at z = 2.03. 13 references

Additional details

Publishing Information

Journal Title
Astrophysical Journal
Journal Volume
330
Series
Astrophys. J.
Journal Page Range
184-190
ISSN
0004-637X
CODEN
ASJOA

INIS

Country of Publication
United States
Country of Input or Organization
United States
INIS RN
20000905
Subject category
S79: ASTROPHYSICS, COSMOLOGY AND ASTRONOMY;
Descriptors DEI
BINARY STARS; COORDINATES; COSMOLOGY; GALAXY CLUSTERS; GRAVITATIONAL LENSES; LYMAN LINES; QUASARS; RED SHIFT; SPECTROSCOPY
Descriptors DEC
COSMIC RADIO SOURCES; LENSES; STARS