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astro-ph1998
Redshift estimate of a gravitational lens from the observed reddening of a multiply imaged quasar
C. Jean, J. Surdej
Light rays from a multiply imaged quasar usually sample different path lengths across the deflector. Extinction in the lensing galaxy may thus lead to a differential obscuration an…
astro-ph1998
HST Observations of the QSO pair Q1026-0045A,B
Patrick Petitjean, Jean Surdej, Alain Smette +3
The spatial distribution of the Ly forest is studied using new HST data for the quasar pair Q~1026--0045 A and B at = 1.438 and 1.520 respectively. The angular separati…