A5049513371- Astronomy and Astrophysical Research
- Galaxies: Formation, Evolution, Phenomena
- Stellar, planetary, and galactic studies
- Astronomical Observations and Instrumentation
- Gamma-ray bursts and supernovae
- Adaptive optics and wavefront sensing
- Astrophysics and Star Formation Studies
- Astrophysical Phenomena and Observations
- Remote Sensing in Agriculture
- Scientific Research and Discoveries
- Astrophysics and Cosmic Phenomena
- CCD and CMOS Imaging Sensors
- Cosmology and Gravitation Theories
- Advanced Vision and Imaging
- Radio Astronomy Observations and Technology
- Calibration and Measurement Techniques
- Geophysics and Gravity Measurements
- Photorefractive and Nonlinear Optics
- Impact of Light on Environment and Health
- Astro and Planetary Science
- Photonic and Optical Devices
- Advanced Statistical Methods and Models
- Optimal Power Flow Distribution
- Liver Disease Diagnosis and Treatment
- History and Developments in Astronomy
Centro de Estudios de Física del Cosmos de Aragón
2015-2024
Hospital Zambrano Hellion
2024
Telnet Redes Inteligentes (Spain)
2024
Consejo Superior de Investigaciones Científicas
2001-2021
Universidad de Guadalajara
2019
Instituto de Astrofísica de Andalucía
2004-2017
Iberdrola (Spain)
2015-2017
Universitat de València
2014
Instituto de Astrofísica de Canarias
2010-2012
Universidad de La Laguna
2010-2012
We study how the proportion of star-forming galaxies evolves between z=0.8 and z=0 as a function galaxy environment, using [OII] line in emission signature ongoing star formation. Our high-z dataset comprises 16 clusters, 10 groups another 250 poorer field at z=0.4-0.8 from ESO Distant Cluster Survey, plus 9 massive clusters similar redshifts. As local comparison, we use samples systems selected Sloan Digital Sky Survey 0.04< z < 0.08. At most follow broad anticorrelation fraction...
This is the first paper of a series that will present data and scientific results from WINGS project, wide-field, multiwavelength imaging spectroscopic survey galaxies in 77 nearby clusters. The sample was extracted ROSAT catalogs X-Ray emitting clusters, with constraints on redshift () distance galactic plane ( deg). global goal project systematic study local cosmic variance cluster population properties as function environment. collection allow definition local, “zero-point” reference...
Baryon Acoustic Oscillations (BAOs) provide a "standard ruler" of known physical length, making it one the most promising probes nature dark energy (DE). The detection BAOs as an excess power in galaxy distribution at certain scale requires measuring positions and redshifts. "Transversal" (or "angular") measure angular size this projected sky information about distance. "Line-of-sight" "radial") require very precise redshifts, but direct measurement Hubble parameter different more sensitive...
<i>Aims. <i/>We present the results from a comprehensive spectroscopic survey of WINGS (WIde-field Nearby Galaxy-cluster Survey) clusters, program called WINGS-SPE. The WINGS-SPE sample consists 48 22 which are in southern sky and 26 north. main goals this are: (1) to study dynamics kinematics clusters their constituent galaxies, (2) explore link between spectral properties morphological evolution different density environments across wide range cluster X-ray luminosities optical...
We investigate how the [O II] properties and morphologies of galaxies in clusters groups at z = 0.4–0.8 depend on projected local galaxy density, compare with field similar redshifts low z. In both nearby distant clusters, higher density regions contain proportionally fewer star-forming galaxies, average equivalent width is independent density. However, current star formation rate (SFR) seems to peak densities ~15-40 Mpc−2. At odds low-z results, high relation between fraction varies from...
Massive quiescent galaxies at z>1 have been found to small physical sizes, hence be superdense. Several mechanisms, including minor mergers, proposed for increasing galaxy sizes from high- low-z. We search superdense massive in the WIde-field Nearby Galaxy-cluster Survey (WINGS) of X-ray selected clusters 0.04<z<0.07. discover a significant population with masses and comparable those observed high redshift. They approximately represent 22% all cluster more than 3x10^10Msol, are mostly S0...
The Advance Large Homogeneous Area Medium-Band Redshift Astronomical (ALHAMBRA) survey has observed eight different regions of the sky, including sections Cosmic Evolution Survey (COSMOS), DEEP2, European Large-Area Infrared Space Observatory (ELAIS), Great Observatories Origins Deep North (GOODS-N), Sloan Digital Sky (SDSS) and Groth fields using a new photometric system with 20 optical, contiguous ∼300-Å filters plus JHKs bands. filter is designed to optimize effective redshift depth...
Post-starburst (E+A or k+a) spectra, characterized by their exceptionally strong Balmer lines in absorption and the lack of emission lines, belong to galaxies which star formation (SF) activity ended abruptly sometime during past Gyr. We perform a spectral analysis clusters, groups, poor field at z = 0.4–0.8 based on ESO Distant Cluster Survey. find that incidence k+a these redshifts depends strongly environment. K+a's reside preferentially clusters and, unexpectedly, subset σ 200–400 km s−1...
We present the galaxy stellar mass function and its evolution in clusters from z∼ 0.8 to current epoch, based on WIde-field Nearby Galaxy-cluster Survey (WINGS) (0.04 ≤z≤ 0.07), ESO Distant Cluster (EDisCS) (0.4 0.8). investigate total find that it evolves noticeably with redshift. The shape at M* > 1011 M⊙ does not evolve, but below M*∼ 1010.8 high redshift is flat, while local Universe flattens out lower masses. population of M*= 1010.2–1010.8 galaxies must have grown significantly between...
We quantify the evolution of spiral, S0 and elliptical fractions in galaxy clusters as a function cluster velocity dispersion (σ) X-ray luminosity (LX) using new database 72 nearby from Wide-Field Nearby Galaxy-Cluster Survey (WINGS) combined with literature data at z = 0.5–1.2. Most WINGS have σ between 500 1100 km s−1, LX 0.2 5 × 1044 erg s−1. The fraction is known to increase time expense spiral population. find that evolved more strongly lower σ, less massive clusters, while we confirm...
<i>Context. <i/>This is the second paper of a series devoted to <i>WIde Field Nearby Galaxy-cluster Survey<i/> (WINGS). WINGS long term project which gathering wide-field, multi-band imaging and spectroscopy galaxies in complete sample 77 X-ray selected, nearby clusters (0.04 < <i>z<i/> 0.07) located far from galactic plane (|<i>b<i/>|<i>≥<i/> 20°). The main goal this establish local reference for evolutionary studies galaxy clusters.<i>Aims. presents optical () photometric catalogs...
[Abridged] To effectively investigate galaxy formation and evolution, it is of paramount importance to exploit homogeneous data for large samples galaxies in different environments. The WINGS (WIde-field Nearby Galaxy-cluster Survey) project aim evaluate physical properties a complete sample low redshift clusters be used as reference evolutionary studies. survey still ongoing the original dataset will soon enlarged with new observations. This paper presents entire collection measurements...
J-PLUS is an ongoing 12-band photometric optical survey, observing thousands of square degrees the Northern hemisphere from dedicated JAST/T80 telescope at Observatorio Astrof\'isico de Javalambre. T80Cam a 2 sq.deg field-of-view camera mounted on this 83cm-diameter telescope, and equipped with unique system filters spanning entire range. This filter combination broad, medium narrow-band filters, optimally designed to extract rest-frame spectral features (the 3700-4000\AA\ Balmer break...
Abstract We present the second NuSTAR and XMM-Newton extragalactic survey of JWST north ecliptic pole (NEP) time-domain field (TDF). The first NEP-TDF had 681 ks total exposure time executed in cycle 5 2019 2020. This survey, acquired from 2020 to 2022 6, adds 880 time. overall is most sensitive date, a 60 sources were detected above 95% reliability threshold. constrain hard X-ray number counts, <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" overflow="scroll"> <mml:mi>log</mml:mi>...
Context.The WIde-field Nearby Galaxy-cluster Survey (wings) is a project aiming at the study of galaxy populations in clusters local universe () and influence environment on physical properties galaxies. This survey provides high quality set spectroscopic data for ∼6000 galaxies 48 clusters. The such large amount objects requires automatic tools capable extracting as much information possible from data.
We present the morphological catalogue of galaxies in nearby clusters WIde-field Nearby Galaxy-clusters Survey (WINGS). The contains a total number 39 923 galaxies, for which we provide automated estimates type, applying purposely devised tool MORPHOT to V-band WINGS imaging. For ∼3000 also visual type. A substantial part paper is devoted description tool, whose application limited, at least moment, imaging only. approach automation classification non-parametric and fully empirical one. In...
We present a study characterizing the environments of galaxies in redshift range 0.4 < z 1 based on data from POWIR near-infrared imaging and DEEP2 spectroscopic surveys, down to stellar mass log M*= 10.25 M⊙. Galaxy are measured terms nearest-neighbour densities as well fixed aperture kinematical dynamical parameters neighbour within radius h−1 Mpc. disentangle correlations between galaxy mass, colour environment, using not only number densities, but also other environmental characteristics...
The massive exploitation of cosmic voids for precision cosmology in the upcoming dark energy experiments, requires a robust understanding their internal structure, particularly density profile. We show that void profile is insensitive to radius both catalogue observed and from large cosmological simulation. However, simulated display remarkably different shapes, with former having much steeper profiles than latter. Sparsity can not be main reason this discrepancy, as we demonstrate recovered...
Using a sample of cosmic voids identified in the Sloan Digital Sky Survey Data Release 7, we study star formation activity void galaxies. The properties galaxies living are compared with those shells and control sample, representing general galaxy population. Void appear to form stars more efficiently than shell sample. This result can not be interpreted as consequence bias towards low masses underdense regions, subsamples same mass distribution also show statistically different specific...
The Wide-field Nearby Galaxy-cluster Survey (WINGS) is a wide-field multi-wavelength survey of X-ray selected clusters at z =0.04-0.07. original 34'x34' WINGS field-of- view has now been extended to cover 1 sq.deg field with both photometry and spectroscopy. In this paper we present the Johnson B V-band OmegaCAM/VST observations 46 clusters, together data reduction, quality Sextractor photometric catalogs. With median seeing 1arcs in bands, our 25-minutes exposures each band typically reach...
We present the photometric calibration of twelve optical passbands observed by Javalambre Photometric Local Universe Survey (J-PLUS). The proposed method has four steps: (i) definition a high-quality set stars using Gaia information and available 3D dust maps; (ii) anchoring J-PLUS gri to Pan-STARRS solution, accounting for variation with position sources on CCD; (iii) homogenization photometry in other nine filters de-reddened instrumental stellar locus (X - r) versus (g i) colours, where X...
Context. The Javalambre Photometric Local Universe Survey (J-PLUS) has obtained precise photometry in twelve specially designed filters for large numbers of Galactic stars. Deriving their stellar atmospheric parameters and individual elemental abundances is crucial studies structure, the assembly history chemical evolution our Galaxy. Aims. Our goal to estimate not only (effective temperature, Teff, surface gravity, log g, metallicity, [Fe/H]), but also [{\alpha}/Fe] four ([C/Fe], [N/Fe],...
Abstract We present a catalog of stellar parameters (effective temperature T eff , surface gravity <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" overflow="scroll"> <mml:mi>log</mml:mi> <mml:mi>g</mml:mi> </mml:math> age, and metallicity [Fe/H]) elemental-abundance ratios ([C/Fe], [Mg/Fe], [ α /Fe]) for some five million stars (4.5 dwarfs 0.5 giant stars) in the Milky Way, based on colors from Javalambre Photometric Local Universe Survey (J-PLUS) DR3 Gaia EDR3. These estimates are...
Aims.We search for and characterize substructures in the projected distribution of galaxies observed wide field CCD images 77 nearby clusters WIde-field Nearby Galaxy-cluster Survey (WINGS). This sample is complete X-ray flux redshift range .