168 citations · 811 across the 21 of their papers we have counts for
9 papers · 1 filter
The Influence of Gravitational Microlensing on the Broad Emission Lines of Quasars
C. Abajas, E. Mediavilla, J. A. Munoz +2
We discuss the effects of microlensing on the broad emission lines (BELs) of QSOs in the light of recent determinations of the size of the broad line region (BLR) and its scaling w…
Detection of the 2175ÅExtinction Feature at z=0.83
V. Motta, E. Mediavilla, J. A. Munoz +6
We determine the extinction curve in the z_l=0.83 lens galaxy of the gravitational lens SBS0909+532 from the wavelength dependence of the flux ratio between the lensed quasar image…
Time delay in QSO 0957+561 from 1984-99 optical data
A. Oscoz, D. Alcalde, M. Serra-Ricart +6
Photometric optical data of QSO 0957+561 covering the period 1984-99 are analyzed to discern between the two values of the time delay (417 and 424 days) mostly accepted in the rece…
Short-timescale Fluctuations in the Difference Light Curves of QSO 0957+561A,B: Microlensing or Noise?
Rodrigo Gil-Merino, Luis J. Goicoechea, Miquel Serra-Ricart +3
From optical R band data of the double quasar QSO 0957+561A,B, we made two new difference light curves (about 330 days of overlap between the time-shifted light curve for the A ima…
The very red afterglow of GRB 000418 - further evidence for dust extinction in a GRB host galaxy
S. Klose, B. Stecklum, N. Masetti +36
We report near-infrared and optical follow-up observations of the afterglow of the Gamma-Ray Burst 000418 starting 2.5 days after the occurrence of the burst and extending over nea…
An Early-Time Infrared and Optical Study of the Type Ia Supernova 1998bu in M96
M. Hernandez, W. P. S. Meikle, A. Aparicio +22
We present first-season infrared (IR) and optical photometry and spectroscopy of the Type Ia Supernova 1998bu in M96. We also report optical polarimetry of this event. SN1998bu is…