activity
19972024
most citedDark Matter Fraction in Lens Galaxies: New Estimates from Microlensing

79 citations · 256 across the 12 of their papers we have counts for

collaborators

12 papers

astro-ph.GA2024

Microlensing analysis of 14.5-year light curves in SDSS J1004+4112: Quasar accretion disk size and intracluster stellar mass fraction

R. Forés-Toribio, J. A. Muñoz, C. Fian +2

Context. The gravitational lens system SDSS J1004+4112 was the first known example of a quasar lensed by a galaxy cluster. The interest in this system has been renewed following th…

astro-ph.CO2024

The Abundance of Clustered Primordial Black Holes from Quasar Microlensing

Sven Heydenreich, Evencio Mediavilla, Jorge Jiménez-Vicente +2

While elementary particles are the favored candidate for the elusive dark matter, primordial black holes (PBHs) have also been considered to fill that role. Gravitational microlens…

astro-ph.GA2024

First Direct Evidence for Keplerian Rotation in Quasar Inner Broad Line Regions

C. Fian, J. Jiménez-Vicente, E. Mediavilla +4

We introduce a novel method to derive rotation curves with light-day spatial resolution of the inner regions of lensed quasars. We aim to probe the kinematics of the inner part of…

astro-ph.GA2024

Revealing the inner workings of the lensed quasar SDSS J1339+1310: Insights from microlensing analysis

C. Fian, J. A. Muñoz, J. Jiménez-Vicente +4

We aim to unveil the structure of the continuum and broad-emission line (BEL) emitting regions in the gravitationally lensed quasar SDSS J1339+1310 by examining the distinct signat…

astro-ph.GA2024

Single-epoch and Differential Astrometric Microlensing of Quasars

R. Forés-Toribio, E. Mediavilla, J. A. Muñoz +3

We propose and discuss a new experimental approach to measure the centroid shift induced by gravitational microlensing in the images of lensed quasars (astrometric microlensing). O…

astro-ph.GA2018★ 18 cited

Estimate of the Accretion Disk Size in the Gravitationally Lensed Quasar HE 0435-1223 using Microlensing Magnification Statistics

C. Fian, E. Mediavilla, J. Jiménez-Vicente +2

We present a measurement of the accretion disk size of the quadruple lensed quasar HE 0435-1223 from well-sampled 13-yr COSMOGRAIL optical light curves. Using accurate time delays…