Investigation of the spectra of the gravitational lenses H 1413+117 and Q 2237+030.

Details Investigation of the spectra of the gravitational lenses H 1413+117 and Q 2237+030. Investigation of the spectra of the gravitational lenses H 1413+117 and Q 2237+030.

Oct 1996

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1996kfnt...12...11a&link_type=abstract

Kinematika Fiz. Nebesn. Tel, Tom 12, No. 5, p. 11 - 16

Physics

Gravitational Lenses: Spectra, Gravitational Lenses: Quasars, Gravitational Lenses: Velocities

Scientific paper

The spectra of the gravitational lenses H 1413+117 (the "Clover Leaf") and Q 2237+030 ("Einstein Cross") obtained with a significant signal accumulation time are studied. In the spectrum of H 1413+117 two new systems of narrow absorption lines with the redshifts of 0.31 and 0.75 are found; the first system seems probably to be due to a foreground cluster of galaxies. From Q 2237+030 two-dimensional spectroscopy data, star velocity dispersion of the lensing galaxy at different distances from the centre within 6 kpc is estimated. The star velocity dispersion at the galaxy centre is equal to 280 km/sec, and its average within the studied region is 185 km/sec.

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