J. Méndez‐Abreu
A5056618687- Galaxies: Formation, Evolution, Phenomena
- Astronomy and Astrophysical Research
- Stellar, planetary, and galactic studies
- Astrophysics and Star Formation Studies
- Astronomical Observations and Instrumentation
- Gamma-ray bursts and supernovae
- Astrophysical Phenomena and Observations
- Plant Water Relations and Carbon Dynamics
- Astrophysics and Cosmic Phenomena
- Remote Sensing in Agriculture
- Adaptive optics and wavefront sensing
- Advanced Vision and Imaging
- Structural Analysis and Optimization
- Vibration and Dynamic Analysis
- Dynamics and Control of Mechanical Systems
- Advanced Statistical Methods and Models
- Calibration and Measurement Techniques
- Scientific Research and Discoveries
- Radio Astronomy Observations and Technology
- Advanced Measurement and Metrology Techniques
- Spectroscopy and Laser Applications
- Cosmology and Gravitation Theories
- Scientific Measurement and Uncertainty Evaluation
- Impact of Light on Environment and Health
- Solar and Space Plasma Dynamics
Universidad de La Laguna
2014-2024
Instituto de Astrofísica de Canarias
2014-2024
Universidad de Granada
2013-2021
Consejo Superior de Investigaciones Científicas
2009-2021
University of St Andrews
2014-2020
National Institute of Astrophysics, Optics and Electronics
2018
Universidad Complutense de Madrid
2014-2018
Universidad Nacional Autónoma de México
2013
University of Cambridge
2011
IAC (United States)
2010
We present here the Calar Alto Legacy Integral Field Area (CALIFA) survey, which has been designed to provide a first step in this direction.We summarize survey goals and design, including sample selection observational strategy.We also showcase data taken during observing runs (June/July 2010) outline reduction pipeline, quality control schemes general characteristics of reduced data. This is obtaining spatially resolved spectroscopic information diameter selected $\sim600$ galaxies Local...
The use of integral field spectroscopy is since recently allowing to measure the emission line fluxes an increasingly large number star-forming galaxies, both locally and at high redshift. Many studies have used these derive gas-phase metallicity galaxies by applying so-called strong-line methods. However, indicators that datasets were empirically calibrated using few direct abundance data points (Te-based measurements). Furthermore, a precise determination prediction intervals commonly...
We present the largest and most homogeneous catalog of HII regions associations compiled so far. The comprises more than 7000 ionized regions, extracted from 306 galaxies observed by CALIFA survey. describe procedures used to detect, select, analyse spectroscopic properties these regions. In current study we focus on characterization radial gradient oxygen abundance in gas, based deprojected distribution found that all without clear evidence an interaction a common abundance, with...
We present the results on study of global and local M-Z relation based first data available from CALIFA survey (150 galaxies). This provides integral field spectroscopy complete optical extent each galaxy (up to 2-3 effective radii), with enough resolution separate individual HII regions and/or aggregations. Nearly $\sim$3000 have been detected. The spectra cover wavelength range between [OII]3727 [SII]6731, a sufficient signal-to-noise derive oxygen abundance star-formation rate associated...
This paper characterizes the radial structure of stellar population properties galaxies in nearby universe, based on 300 from CALIFA survey. The sample covers a wide range Hubble types, and galaxy mass. We apply spectral synthesis techniques to recover mass surface density, extinction, light mass-weighted ages, metallicity, for each spatial resolution element our target galaxies. To study mean trends with overall properties, individual profiles are stacked seven bins morphology. confirm that...
We present the first public data release of CALIFA survey. It consists science-grade optical datacubes for 100 eventually 600 nearby (0.005<z<0.03) galaxies, obtained with integral-field spectrograph PMAS/PPak mounted on 3.5m telescope at Calar Alto observatory. The galaxies in DR1 already cover a wide range properties color-magnitude space, morphological type, stellar mass, and gas ionization conditions. This offers potential to tackle variety open questions galaxy evolution using spatially...
This paper describes the third public data release (DR3) of Calar Alto Legacy Integral Field Area (CALIFA) survey. Science-grade quality for 667 galaxies are made public, including 200 second (DR2). Data were obtained with integral-field spectrograph PMAS/PPak mounted on 3.5 m telescope at Observatory. Three different spectral setups available: i) a low-resolution V500 setup covering wavelength range 3745–7500 Å (4240–7140 unvignetted) resolution 6.0 (FWHM) 646 galaxies, ii)...
This paper describes the Second Public Data Release (DR2) of Calar Alto Legacy Integral Field Area (CALIFA) survey. The data for 200 objects are made public, including 100 galaxies First (DR1). were obtained with integral-field spectrograph PMAS/PPak mounted on 3.5 m telescope at observatory. Two different spectral setups available each galaxy, (i) a low-resolution V500 setup covering wavelength range 3745-7500 \AA\ resolution 6.0 (FWHM), and (ii) medium-resolution V1200 3650-4840 2.3...
WEAVE, the new wide-field, massively multiplexed spectroscopic survey facility for William Herschel Telescope, will see first light in late 2022. WEAVE comprises a 2-degree field-of-view prime-focus corrector system, nearly 1000-multiplex fibre positioner, 20 individually deployable 'mini' integral field units (IFUs), and single large IFU. These systems feed dual-beam spectrograph covering wavelength range 366$-$959\,nm at $R\sim5000$, or two shorter ranges $R\sim20\,000$. After summarising...
<i>Context. <i/>Bars are very common in the centre of disc galaxies, and they drive evolution their structure. The state-of-the-art imaging redshift surveys galaxies allow us to study relationships between properties bars those hosts statistically significant samples.<i>Aims. <i/>A volume-limited sample 2106 was studied derive bar fraction, length, strength as a function morphology, size, local galaxy density, light concentration, colour host galaxy. were selected not be strongly...
We describe and discuss the selection procedure statistical properties of galaxy sample used by Calar Alto Legacy Integral Field Area Survey (CALIFA), a public legacy survey 600 galaxies using integral field spectroscopy. The CALIFA "mother sample" was selected from Sloan Digital Sky (SDSS) DR7 photometric catalogue to include all with an r-band isophotal major axis between 45" 79.2" redshift 0.005 < z 0.03. mother contains 939 objects, which will be observed in course survey. targets for...
We present the stellar kinematic maps of a large sample galaxies from integral-field spectroscopic survey CALIFA. The comprises 300 displaying wide range morphologies across Hubble sequence, ellipticals to late-type spirals. This dataset allows us homogeneously extract kinematics up several effective radii. In this paper, we describe level completeness subset with respect full CALIFA sample, as well virtues and limitations extraction compared other well-known surveys. addition, provide...
While studies of gas-phase metallicity gradients in disc galaxies are common, very little has been done towards the acquisition stellar abundance same regions. We present here a comparative study and age distributions sample 62 nearly face-on, spiral with without bars, using data from CALIFA survey. measure slopes their relation other properties galaxies. find that mean shallow negative. Furthermore, when normalized to effective radius disc, slope population does not correlate mass or...
This paper describes the observations and first data release (DR1) of ESO public spectroscopic survey "VANDELS, a deep VIMOS CANDELS CDFS UDS fields". VANDELS' main targets are star-forming galaxies at 2.4<z<5.5 massive passive 1<z<2.5. By adopting strategy ultra-long exposure times, from 20 to 80 hours per source, VANDELS is designed be deepest ever high-redshift Universe. Exploiting red sensitivity spectrograph, has obtained ultra-deep spectra covering wavelength 4800-10000 A with...
We present a new morphological indicator designed for automated recognition of galaxies with faint asymmetric tidal features suggestive an ongoing or past merger. use the indicator, together pre-existing diagnostics galaxy structure to study role mergers in inducing (post-) starburst spectral signatures local galaxies, and investigate whether play build-up ‘red sequence’. Our structural analysis evolutionary sample 335 Sloan Digital Sky Survey DR7 ages 0 < tSB 0.6 Gyr, shows that 45 per cent...
VANDELS is a uniquely-deep spectroscopic survey of high-redshift galaxies with the VIMOS spectrograph on ESO's Very Large Telescope (VLT). The has obtained ultra-deep optical (0.48 < lambda 1.0 micron) spectroscopy ~2100 within redshift interval z 7.0, over total area ~0.2 sq. degrees centred CANDELS UDS and CDFS fields. Based accurate photometric pre-selection, 85% targeted by were selected to be at z>=3. Exploiting red sensitivity refurbished spectrograph, fundamental aim provide high...
We present spatially resolved stellar and/or ionized gas kinematic properties for a sample of 103 interacting galaxies, tracing all merger stages: close companions, pairs with morphological signatures interaction, and coalesced remnants. compare our 80 non-interacting galaxies. measure the components major (projected) position angles (PA$_{\mathrm{kin}}$, approaching receding) directly from velocity fields no assumptions on internal motions. This method allow us to derive deviations PAs...
We measured the gas abundance profiles in a sample of 122 face-on spiral galaxies observed by CALIFA survey and included all spaxels whose line emission was consistent with star formation. This type analysis allowed us to improve statistics respect previous studies, properly estimate oxygen distribution across entire disc distance up 3-4 effective radii (r$_e$). confirm results obtained from classical HII region analysis. In addition general negative gradient, an outer flattening can be...
The bar pattern speed ($\Omega_{\rm b}$) is defined as the rotational frequency of bar, and it determines dynamics. Several methods have been proposed for measuring $\Omega_{\rm b}$. non-parametric method by Tremaine \& Weinberg (1984; TW) based on stellar kinematics most accurate. This has applied so far to 17 galaxies, them SB0 SBa types. We TW a new sample 15 strong bright barred spanning wide range morphological types from SBbc. Combining our analysis with previous studies, we...
VANDELS is an ESO Public Spectroscopic Survey designed to build a sample of high-signal-to-noise ratio, medium-resolution spectra galaxies at redshifts between 1 and 6.5. Here we present the final Data Release Survey, comprising 2087 redshift measurements. We provide detailed description selection, observations, data reduction procedures. The catalogue reaches target selection completeness 40% i AB = 25. high signal-to-noise ratio (above 7 in 80% spectra) dispersion 2.5 Å allowed us measure...
The majority of massive disk galaxies in the local Universe show a stellar barred structure their central regions, including our Milky Way1,2. Bars are supposed to develop dynamically cold disks at low redshift, as strong gas turbulence typical high redshift suppresses or delays bar formation3,4. Moreover, simulations predict bars be almost absent beyond z = 1.5 progenitors Way-like galaxies5,6. Here we report observations ceers-2112, spiral galaxy zphot ≈ 3, which was already mature when...