272 citations · 1.2k across the 44 of their papers we have counts for
14 papers · 1 filter
Optimal filter systems for photometric redshift estimation
N. Benitez, M. Moles, J. A. L. Aguerri +18
In the next years, several cosmological surveys will rely on imaging data to estimate the redshift of galaxies, using traditional filter systems with 4-5 optical broad bands; narro…
The night-sky at the Calar Alto Observatory II: The sky at the near infrared
S. F. Sanchez, U. Thiele, J. Aceituno +3
We present here the characterization of the night sky-brightness at the near-infrared, the telescope seeing, and the fraction of useful time at the Calar Alto observatory. For this…
The ALHAMBRA Project: A large area multi medium-band optical and NIR photometric survey
M. Moles, N. Benítez, J. A. L. Aguerri +18
(ABRIDGED) We describe the first results of the ALHAMBRA survey which provides cosmic tomography of the evolution of the contents of the Universe over most of Cosmic history. Our a…
First results from the ALHAMBRA-Survey
A. Fernandez-Soto, J. A. L. Aguerri, E. J. Alfaro +17
We present the first results from the ALHAMBRA survey. ALHAMBRA will cover a relatively wide area (4 square degrees) using a purposely-designed set of 20 medium-band filters, down…
Seyfert's Sextet: A Slowly Dissolving Stephan's Quintet?
A. Durbala, A. del Olmo, M. S. Yun +7
We present a multiwavelength study of the highly evolved compact galaxy group known as Seyfert's Sextet (HCG79: SS). We interpret SS as a 2-3 Gyr more evolved analog of Stephan's Q…
Nuclear Activity in UZC Compact Groups of Galaxies
M. A. Martinez, A. del Olmo, P. Focardi +1
We analyse the level of nuclear activity in galaxies belonging to UZC-CGs. Spectra are available for 868 galaxies (90% of the whole catalog); 67 % of them show nuclear activity (AG…
The ALHAMBRA Survey: For a systematic Study of Cosmic Evolution
Mariano Moles, Emilio Alfaro, Narciso Benítez +16
ALHAMBRA is a project to gather data to sample a fraction of the Universe with enough precision to follow the evolution of its content and properties with z, a kind of Cosmic Tomog…
Ripples and tails in the compact group of galaxies Hickson 54
L. Verdes-Montenegro, A. Del Olmo, J. I. Iglesias-Páramo +4
HCG 54 has been classified as a compact galaxy group by Hickson, but its nature is uncertain because of its unusual properties. We present here a study of HCG~54 based on deep opti…
Where is the Neutral Atomic Gas in Hickson Groups?
L. Verdes-Montenegro, M. S. Yun, B. A. Williams +3
We have analyzed the total HI contents of 72 Hickson compact groups of galaxies (HCGs) and the detailed spatial distributions and kinematics of HI within a subset of 16 groups usin…
Mass Distribution in Compact Groups
J. Perea, A. del Olmo, L. Verdes-Montenegro +3
New redshift surveys of galaxies in the field of compact groups have discovered a population of faint galaxies which act as satellites orbiting in the potential well of the bright…
On two mass estimators for clusters of galaxies
H. Aceves, J. Perea
The two most common mass estimators that use velocity dispersions and positions of objects in a stellar system, the virial mass estimator (VME) and the projected mass estimator (PM…
Estimating Masses in Clusters of Galaxies
Hector Aceves, Jaime Perea
The projected (PME) and virial mass estimator (VME) are revisited and tested using an N-body equilibrium system. It is found that the PME can overestimate the mass by approx 40% if…
Non-linear Dependence of L(B) on L(FIR) and M(H2) among Spiral Galaxies and Effects of Tidal Interaction
J. Perea, A. del Olmo, L. Verdes-Montenegro +1
Through the study of a carefully selected sample of isolated spiral galaxies, we have established that two important global physical quantities for tracing star forming activities,…
The ESO Nearby Abell Cluster Survey. III. Distribution and Kinematics of Emission-Line Galaxies
A. Biviano, P. Katgert, A. Mazure +4
We have studied the frequency of occurrence, the kinematics and the spatial distribution of Emission-Line Galaxies (ELG) in clusters in the ESO Nearby Abell Cluster Survey (ENACS).…