$H_0$ from ten well-measured time delay lenses

Understand

In this work, we present a homogeneous curve-shifting analysis using the difference-smoothing technique of the publicly available light curves of 24 gravitationally lensed quasars, for which time delays have been reported in the literature.

• The uncertainty of each measured time delay was estimated using realistic simulated light curves.
• The recipe for generating such simulated light curves with known time delays in a plausible range around the measured time delay is introduced here.
• We identified 14 gravitationally lensed quasars that have light curves of sufficiently good quality to enable the measurement of at least one time delay between the images, adjacent to each other in terms of arrival-time order, to a precision of better than 20% (including systematic errors).