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19942017
most citedA Robust Determination of the Time Delay in 0957+561A,B and a Measurement of the Global Value of Hubble's Constant

297 citations · 791 across the 20 of their papers we have counts for

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astro-ph2000

Microlensing results from APO monitoring of the double quasar Q0957+561A,B between 1995 and 1998

Joachim Wambsganss, Robert W. Schmidt, Wesley N. Colley +2

If the halo of the lensing galaxy 0957+561 is made of massive compact objects (MACHOs), they must affect the lightcurves of the quasar images Q0957+561 A and B differently. We sear…