156 citations · 1.6k across the 58 of their papers we have counts for
10 papers · 1 filter
LOLAS: an optical turbulence profiler in the atmospheric boundary layer with extreme altitude-resolution
R. Avila, J. L. Aviles, R. W. Wilson +3
We report the development and first results of an instrument called Low Layer Scidar (LOLAS) which is aimed at the measurement of optical-turbulence profiles in the atmospheric bou…
The compact group--fossil group connection: observations of a massive compact group at z=0.22
Claudia L. Mendes de Oliveira, Eleazar R. Carrasco
It has been suggested that fossil groups could be the cannibalized remains of compact groups, that lost energy through tidal friction. However, in the nearby universe, compact grou…
Millimagnitude Photometry for Transiting Extrasolar Planetary Candidates IV: The Puzzle of the Extremely Red OGLE-TR-82 Primary Solved
Sergio Hoyer, Sebastian Ramirez Alegria, Valentin D. Ivanov +12
We present precise new V, I, and K-band photometry for the planetary transit candidate star OGLE-TR-82. Good seeing V-band images acquired with VIMOS instrument at ESO VLT allowed…
The Dwarf Galaxy Population in Nearby Groups. The data
Eleazar R. Carrasco, Claudia M. de Oliveira, Leopoldo Infante
We used V and I CCD photometry to search for low-surface brightness dwarf galaxies (LSBD) in the central (<0.5 h^-1 Mpc) region of the groups NGC 6868, NGC 5846, HCG 42 and the poo…
Structure and dynamics of the Shapley Supercluster
Dominique Proust, Hernan Quintana, Eleazar R Carrasco +8
We present results of our wide-field redshift survey of galaxies in a 285 square degree region of the Shapley Supercluster (SSC), based on a set of 10529 velocity measurements (inc…
The low surface brightness dwarf members of nearby groups of galaxies
E. R. Carrasco, C. Mendes de Oliveira, L. Infante
We present the photometric and spectroscopic results of a survey done in a wide-field area of nearby groups and poor clusters. The main goals are identifying and characterizing the…
The low surface brightness members of nearby groups
C. Mendes de Oliveira, E. R. Carrasco, L. Infante +1
We are undertaking a large, wide-field survey of nearby groups and poor clusters. The main goals are identifying and characterizing the properties of low-surface-brightness dwarf g…
The Dwarf Galaxy Population of the Dorado group down to Mv=-11
E. R. Carrasco, C. M. de Oliveira, Leopoldo Infante +1
We present V and I CCD photometry of suspected low-surface brightness dwarf galaxies detected in a survey covering ~2.4 deg^2 around the central region of the Dorado group of galax…
The Shapley Supercluster. III. Collapse dynamics and mass of the central concentration
Andreas Reisenegger, H. Quintana, Eleazar R. Carrasco +1
We present the first application of a spherical collapse model to a supercluster of galaxies. Positions and redshifts of galaxies in the Shapley Supercluster (SSC) are…
The Shapley Supercluster. II. Spectroscopic observations in a wide area and general morphology
H. Quintana, Eleazar R. Carrasco, Andreas Reisenegger
We report 2868 new multi-object spectroscopic measurements of galaxy redshifts in an area roughly 12° 6°(right ascension declination) centered on the Shapley Super…