Microlensing-based search for extragalactic MACHOs
In this talk we first make a review on gravitational lensing and microlensing as an introduction, followed by a discussion on the most recent work of our group...
Microlensing-based Studies of the Unresolved Structure of AGNs and the Composition of Lensing Galaxies
Multiple images of quasars formed by gravitational lensing are typically seen through the lensing galaxy. The granulation of the galaxy in stars or other...
MiNDSTEp differential photometry of the gravitationally lensed quasars WFI 2033-4723 and HE 0047-1756: microlensing and a new time delay
Aims: We present V and R photometry of the gravitationally lensed quasars WFI 2033-4723 and HE 0047-1756. The data were taken by the MiNDSTEp collaboration with...
Modeling of the HerMES Submillimeter Source Lensed by a Dark Matter Dominated Foreground Group of Galaxies
We present the results of a gravitational lensing analysis of the bright z s = 2.957 submillimeter galaxy (SMG) HERMES found in the Herschel/SPIRE science...
MS 2053.7-0449: Confirmation of a Bimodal Mass Distribution from Strong Gravitational Lensing
We present the first strong-lensing study of the mass distribution in the cluster MS 2053-04 based on HST archive data. This massive, X-ray luminous cluster has...
Multifrequency Analysis of the New Wide-Separation Gravitational Lens Candidate RX J0921+4529
We report the discovery of a new two-image gravitational lens candidate. The system RX J0921+4529 contains two zs=1.66 quasars separated by 6.93" with an H-band...