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19972026
most citedCALIFA, the Calar Alto Legacy Integral Field Area survey: I. Survey presentation

1.3k citations · 23.5k across the 260 of their papers we have counts for

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Showing 1998Show all

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astro-ph1998★ 1 cited

First estimate of the time delay in HE 1104-1805

Lutz Wisotzki, Olaf Wucknitz, Sebastian Lopez +1

We present first results from five years of spectrophotometric monitoring of the bright double QSO and gravitational lens HE 1104-1805. The quasar has varied considerably over this…

astro-ph1998

Detection of the lensing galaxy in HE 2149-2745

Sebastian Lopez, Olaf Wucknitz, Lutz Wisotzki

We have obtained new BVR-band images of the gravitationally lensed QSO pair HE 2149-2745 A,B (QSO redshift z=2.033; angular separation theta_AB=1.71 arcsec), under 1 arcsec seeing…