Astrophysical: Gravitational lensing

  • Publication
    Quasar Milli-lensing and Cold Dark Matter (TNG50) Subhaloes. I. Image Splitting
    We use numerical mass density profiles from the TNG50 simulation to study the impact of gravitational milli-lensing by dark matter subhaloes on the images of...
  • Publication
    Reconciling concentration to virial mass relations
    Context. The concentration-virial mass (c-M) relation is a fundamental scaling relation within the standard cold dark matter (ΛCDM) framework well established...
  • Publication
    Recurrence of the Blue Wing Enhancements in the High-Ionization Lines of SDSS 1004+4112A
    We present integral field spectroscopic observations of the quadruple-lensed QSO SDSS 1004+4112 taken with the fiber system INTEGRAL at the William Herschel...
  • Publication
    Resolving the Innermost Region of the Accretion Disk of the Lensed Quasar Q2237+0305 through Gravitational Microlensing
    We study three high magnification microlensing events, generally recognized as probable caustic crossings, in the optical light curves of the multiply imaged...
  • Publication
    Rest-frame UV properties of luminous strong gravitationally lensed Lyα emitters from the BELLS GALLERY Survey
    We present deep rest-frame UV spectroscopic observations using the Gran Telescopio Canarias of six gravitationally lensed Lyα emitters (LAEs) at 2.36 < z < 2.82...
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    Revealing the inner workings of the lensed quasar SDSS J1339+1310: Insights from microlensing analysis
    Aims. 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...
  • Publication
    Revealing the structure of the lensed quasar Q 0957+561. I. Accretion disk size
    Aims: We aim to use signatures of microlensing induced by stars in the foreground lens galaxy to infer the size of the accretion disk in the gravitationally...
  • Publication
    Revealing the structure of the lensed quasar Q 0957+561. II. Supermassive black hole mass via gravitational redshift
    Aims: We intend to use the impact of microlensing on the Fe III λλ2039−2113 emission line blend along with a measure of its gravitational redshift to estimate...
  • Publication
    Revealing the structure of the lensed quasar Q 0957+561. III. Constraints on the size of the broad-line region
    Aims: Our aim is to examine the size, kinematics, and geometry of the broad-line region (BLR) in the double-lensed quasar Q 0957+561 by analyzing the impact of...