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Polarization microlensing in the quadruply imaged broad absorption line quasar H1413+117
D. Hutsemékers, D. Sluse, L. Braibant +1
We have obtained spectropolarimetric observations of the four images of the gravitationally lensed broad absorption line quasar H1413+117. The polarization of the microlensed image…
Evidence for two spatially separated UV continuum emitting regions in the Cloverleaf broad absorption line quasar
D. Sluse, D. Hutsemékers, T. Anguita +2
Testing the standard Shakura-Sunyaev model of accretion is a challenging task because the central region of quasars where accretion takes place is unresolved with telescopes. The a…
VVV Survey Observations of a Microlensing Stellar Mass Black Hole Candidate in the Field of the Globular Cluster NGC 6553
D. Minniti, R. Contreras Ramos, J. Alonso-Garcia +7
We report the discovery of a large timescale candidate microlensing event of a bulge stellar source based on near-infrared observations with the VISTA Variables in the Via Lactea S…