248 citations · 2.1k across the 43 of their papers we have counts for
25 papers · 1 filter
The miniJPAS survey: a preview of the Universe in 56 colours
S. Bonoli, A. Marín-Franch, J. Varela +166
The Javalambre-Physics of the Accelerating Universe Astrophysical Survey (J-PAS) will soon start to scan thousands of square degrees of the northern extragalactic sky with a unique…
Euclid preparation III. Galaxy cluster detection in the wide photometric survey, performance and algorithm selection
Euclid Collaboration, R. Adam, M. Vannier +56
Galaxy cluster counts in bins of mass and redshift have been shown to be a competitive probe to test cosmological models. This method requires an efficient blind detection of clust…
II. Apples to apples : cluster selection functions for next-generation surveys
Begoña Ascaso, Simona Mei, Jim G. Bartlett +1
We present the cluster selection function for three of the largest next-generation stage-IV surveys in the optical and infrared: Euclid-Optimistic, Euclid-Pessimistic and the Large…
An Accurate Cluster Selection Function for the J-PAS Narrow-Band wide-field survey
Begoña Ascaso, Narciso Benítez, Renato Dupke +19
The impending Javalambre Physics of the accelerating universe Astrophysical Survey (J-PAS) will be the first wide-field survey of 8500 deg to reach the `stage IV' cat…
Galaxy clusters and groups in the ALHAMBRA Survey
Begoña Ascaso, Narciso Benítez, Alberto Fernández-Soto +35
We present a catalogue of 348 galaxy clusters and groups with selected in the 2.78 ALHAMBRA Survey. The high precision of our photometric redshifts, close to $1…
Next Generation Cosmology: Constraints from the Euclid Galaxy Cluster Survey
B. Sartoris, A. Biviano, C. Fedeli +10
We study the characteristics of the galaxy cluster samples expected from the European Space Agency's Euclid satellite and forecast constraints on cosmological parameters describing…
I. Apples to apples : realistic galaxy simulated catalogs and photometric redshift predictions for next-generation surveys
Begoña Ascaso, Simona Mei, Narciso Benítez
We present new mock catalogues for two of the largest stage-IV next-generation surveys in the optical and infrared: LSST and Euclid, based on an N-body simulation+semi-analytical c…
On the intermediate-redshift central stellar mass-halo mass relation, and implications for the evolution of the most massive galaxies since z~1
Francesco Shankar, Hong Guo, Vincent Bouillot +20
The stellar mass-halo mass relation is a key constraint in all semi-analytic, numerical, and semi-empirical models of galaxy formation and evolution. However, its exact shape and r…
J-PAS: The Javalambre-Physics of the Accelerated Universe Astrophysical Survey
N. Benitez, R. Dupke, M. Moles +149
The Javalambre-Physics of the Accelerated Universe Astrophysical Survey (J-PAS) is a narrow band, very wide field Cosmological Survey to be carried out from the Javalambre Observat…
Intra Cluster Light properties in the CLASH-VLT cluster MACS J1206.2-0847
V. Presotto, M. Girardi, M. Nonino +46
We aim at constraining the assembly history of clusters by studying the intra cluster light (ICL) properties, estimating its contribution to the fraction of baryons in stars, f*, a…
The ALHAMBRA survey: an empirical estimation of the cosmic variance for merger fraction studies based on close pairs
C. López-Sanjuan, A. J. Cenarro, C. Hernández-Monteagudo +27
Our goal is to estimate empirically, for the first time, the cosmic variance that affects merger fraction studies based on close pairs. We compute the merger fraction from photomet…
Optical Galaxy Clusters in the Deep Lens Survey
Begoña Ascaso, David Wittman, William Dawson
We present the first sample of 882 optically selected galaxy clusters in the Deep Lens Survey (DLS), selected with the Bayesian Cluster Finder. We create mock DLS data to assess co…
Assessing the reliability of Friends-of-Friends groups on the future Javalambre Physics of the Accelerating Universe Astrophysical Survey
A. Zandivarez, E. Díaz-Giménez, C. Mendes de Oliveira +6
We have performed a detailed analysis of the ability of the friends-of-friends algorithm in identifying real galaxy systems in deep surveys such as the future Javalambre Physics of…
The ALHAMBRA survey: evolution of galaxy clustering since
P. Arnalte-Mur, V. J. Martínez, P. Norberg +29
We study the clustering of galaxies as function of luminosity and redshift in the range using data from the Advanced Large Homogeneous Area Medium Band Redshift A…
The Violent Youth of Bright and Massive Cluster Galaxies and their Maturation over 7 Billion Years
Begoña Ascaso, Brian C. Lemaux, Lori M. Lubin +4
In this study we investigate the formation and evolution mechanisms of the brightest cluster galaxies (BCGs) over cosmic time. At high redshift (), we selected BCGs and m…
The ALHAMBRA survey: reliable morphological catalogue of 22,051 early- and late-type galaxies
M. Pović, M. Huertas-Company, J. A. L. Aguerri +29
ALHAMBRA is a photometric survey designed to trace the cosmic evolution and cosmic variance. It covers a large area of ~ 4 sq. deg in 8 fields, where 7 fields overlap with other su…
The ALHAMBRA survey: Discovery of a faint QSO at z = 5.41
I. Matute, J. Masegosa, I. Márquez +23
We aim to illustrate the potentiality of the Advanced Large, Homogeneous Area, Medium-Band Redshift Astronomical (ALHAMBRA) survey to investigate the high redshift universe through…
The ALHAMBRA Survey: Bayesian Photometric Redshifts with 23 bands for 3 squared degrees
A. Molino, N. Benítez, M. Moles +30
The ALHAMBRA (Advance Large Homogeneous Area Medium Band Redshift Astronomical) survey has observed 8 different regions of the sky, including sections of the COSMOS, DEEP2, ELAIS,…
Witnessing galaxy clusters: from maturity to childhood
Begoña Ascaso
Galaxy clusters are the largest structures in Universe. They are very important as both cosmological probes and astrophysical laboratories. Several methods have been developed to d…
A Brightest Cluster Galaxy with an Extremely Large Flat Core
Marc Postman, Tod R. Lauer, Megan Donahue +14
Hubble Space Telescope images of the galaxy cluster Abell 2261, obtained as part of the Cluster Lensing And Supernova survey with Hubble, show that the brightest galaxy in the clus…
CLASH: Precise New Constraints on the Mass Profile of Abell 2261
Dan Coe, Keiichi Umetsu, Adi Zitrin +43
We precisely constrain the inner mass profile of Abell 2261 (z=0.225) for the first time and determine this cluster is not "over-concentrated" as found previously, implying a forma…
Bayesian Cluster Finder: Clusters in the CFHTLS Archive Research Survey
Begoña Ascaso, David M. Wittman, Narciso Benítez
The detection of galaxy clusters in present and future surveys enables measuring mass-to-light ratios, clustering properties, galaxy cluster abundances and therefore, constraining…
Detecting Galaxy Clusters in the DLS and CARS: a Bayesian Cluster Finder
Begoña Ascaso, David Wittman, Narciso Benítez +1
The detection of galaxy clusters in present and future surveys enables measuring mass-to-light ratios, clustering properties or galaxy cluster abundances and therefore, constrainin…
The Shapes of BCGs and normal Ellipticals in Nearby Clusters
G. Fasano, D. Bettoni, B. Ascaso +13
We compare the apparent axial ratio distributions of Brightest Cluster Galaxies (BCGs) and normal ellipticals (Es) in our sample of 75 galaxy clusters from the WINGS survey. Most B…