Optical Microvariability in Quasars: Spectral Variability
We present a method that we developed to discern where the optical microvariability (OM) in quasars originates: in the accretion disk (related to thermal...
Optical observations of Dwingeloo 1, a nearby barred spiral galaxy behind the Milky Way
We present new optical observations of the nearby barred spiral galaxy Dwingeloo 1 (Dw1) obtained with the Isaac Newton, William Herschel and Wise telescopes...
Optical photometry and morphology of radio galaxies.
The authors report preliminary results on the optical properties (morphology, surface-brightness profiles, surface-brightness/size relationships, ellipticities...
Optical Surface Photometry of a Sample of Disk Galaxies. I. Observations and Data Reduction
We present accurate optical surface photometry in the U, B, V, R, and I passbands for 11 disk galaxies. The sample has been selected in order to study the...
Optical surface photometry of radio galaxies - I. Observations and data analysis
This is the first paper of a series aimed at studying the structural and photometric properties in the optical band of a sample of 95 radio galaxies. Detailed...
Optical surface photometry of radio galaxies. II. Observations and data analysis
Optical imaging observations for 50 radio galaxies are presented. For each object isophotal contours, photometric profiles, structural parameters (position...
Optical validation and characterization of Planck PSZ2 sources at the Canary Islands observatories. I. First year of LP15 observations
Aims: The second catalogue of Planck Sunyaev-Zeldovich (SZ) sources, hereafter PSZ2, is the largest sample of galaxy clusters selected through their SZ...
Orbital period refinement of CoRoT planets with TESS observations
CoRoT was the first space mission dedicated to exoplanet detection. Operational between 2007 and 2012, this mission discovered 37 transiting planets, including...