Issue |
A&A
Volume 385, Number 2, April II 2002
|
|
---|---|---|
Page(s) | 399 - 403 | |
Section | Cosmology (including clusters of galaxies) | |
DOI | https://doi.org/10.1051/0004-6361:20020121 | |
Published online | 15 April 2002 |
A CO survey of gravitationally lensed quasars with the IRAM interferometer*
1
National Science Foundation, 4201 Wilson Boulevard, Arlington VA 22230, USA
2
European Southern Observatory, Casilla 19001, Santiago 19, Chile
3
IRAM, 300 Rue de la Piscine, 38406 St Martin d'Hères, France
Corresponding author: R. Barvainis, rbarvai@nsf.gov
Received:
28
September
2001
Accepted:
22
January
2002
We present the results of a CO survey of
gravitationally lensed quasars, conducted with the Plateau de Bure
Interferometer over the last three years. Among the 18 objects surveyed, one
was detected in CO line emission, while six were detected in the continuum at
3 mm and three in the continuum at 1 mm. The low CO detection rate
may at least in part be due to uncertainties in the redshifts derived
from quasar broad emission lines.
The detected CO source, the radio quiet quasar MG 0751+2716,
is quite strong in the CO(4-3) line and in the millimeter/submillimeter
continuum, the latter being emission from cool dust. The integrated CO
line flux is
Jy
kms-1, and the total molecular
gas mass is estimated to be in the range
–
.
Key words: quasars: general / gravitational lensing / quasars: individual: MG0751+2716
© ESO, 2002
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