Subarcsecond Optical Images of the Radio Gravitational Lens B1152+199

Bibcode
2001ApJ...563L.107M
DOI
10.1086/338735
Muñoz, J. A.; Mediavilla, E.; Falco, E. E.; Oscoz, A.; Barrena, R.; McLeod, B. A.; Abajas, C.; Alcalde, D.; Serra-Ricart, M.; Motta, V.
Bibliographical reference

The Astrophysical Journal, Volume 563, Issue 2, pp. L107-L109.

Advertised on:
12
2001
Journal
The Astrophysical Journal
Number of authors
10
IAC number of authors
8
Citations
3
Refereed citations
3
Description
We present R-band observations of the Cosmic Lens All-Sky Survey gravitational lens system B1152+199, obtained with the active optics system at the Telescopio Nazionale Galileo. Owing to the very good spatial resolution of the images (0.6"), the optical counterpart of the two quasar components and the lens galaxy have been clearly identified. Contrary to previous estimates, the new location derived for the lens is in excellent agreement with the lensing interpretation for the system. We estimate a time delay of about 30 h-1 days. Based on observations made with the Italian Telescopio Nazionale Galileo operated on the island of La Palma by the Centro Galileo Galilei of the Consorzio Nazionale per l'Astronomia e l'Astrofisica at the Spanish Observatorio del Roque de los Muchachos of the Instituto de Astrofísica de Canarias.
Type
Refereed
Cosmology
Gravitational lensing
Quasars

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