Astrofísicas: Lente gravitacional

  • Publicación
    QSO 2237+0305 VR Light Curves from Gravitational LensES International Time Project Optical Monitoring
    We present VR observations of QSO 2237+0305 conducted by the Gravitational Lensing International Time Project collaboration from 1999 October 1 to 2000 February...
  • Publicación
    QSO size ratios from multiband monitoring of a microlensing high-magnification event
    We introduce a new scheme to study the nature of the central engine in a lensed QSO. The compact emission regions could have different sizes in different...
  • Publicación
    Quasar Microlensing Statistics and Flux-ratio Anomalies in Lens Models
    Precise lens modeling is a critical step in time delay studies of multiply imaged quasars, which are key for measuring some important cosmological parameters...
  • Publicación
    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...
  • Publicación
    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...
  • Publicación
    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...
  • Publicación
    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...
  • Publicación
    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...
  • Publicación
    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...