Radio-galaxies surface photometry (de Juan+, 1994)
We present the results on the optical morphology and structure of 25 low-luminosity radio galaxies. The radial dependence of parameters like the surface...
Rapid and multiband variability of the TeV bright active nucleus of the galaxy IC 310
Context. The radio galaxy IC 310 has recently been identified as a γ-ray emitter based on observations at GeV energies with Fermi-LAT and at very high energies...
Rapid infrared spectral variability of 3C 66A in outburst.
Infrared observations taken during the major outburst seen in 1993 show strong evidence of rapid variability in 3C 66A on a time scale of a few hours, with...
Rates and delay times of Type Ia supernovae in the Dark Energy Survey
We use a sample of 809 photometrically classified Type Ia supernovae (SNe Ia) discovered by the Dark Energy Survey (DES) along with 40 415 field galaxies to...
Rates and properties of Type Ia supernovae in galaxy clusters within the dark energy survey
We identify 66 photometrically classified Type Ia supernovae (SNe Ia) from the Dark Energy Survey (DES) that have occurred within red-sequence selected galaxy...
Re-affirming the connection between the Galactic stellar warp and the Canis Major over-density
Aims:We aim to understand the real nature of the stellar overdensity at southern galactic latitudes in the region of CMa. Methods: We perform a critical re...
Recent SFR calibrations and the constant SFR approximation
Aims: Star formation rate (SFR) inferences are based on the so-called constant SFR approximation, where synthesis models are required to provide a calibration...
Recent Star Formation in Clusters of Galaxies: Extremely Compact Starbursts in A539 and A634
We report on the detection of two Hα-emitting extremely compact objects from deep images of the A634 and A539 clusters of galaxies at z~0.03. Follow-up long...
Recent Star Formation in Groups of Galaxies: HCG 31
Broadband UBVRI and narrowband H alpha and continuum images have been obtained for the Hickson compact group HCG 31 as part of an ongoing program devoted to the...