Isabel Pérez
A5023030002- Galaxies: Formation, Evolution, Phenomena
- Stellar, planetary, and galactic studies
- Astronomy and Astrophysical Research
- Astrophysics and Star Formation Studies
- Astronomical Observations and Instrumentation
- Gamma-ray bursts and supernovae
- Mexican Socioeconomic and Environmental Dynamics
- Health and Medical Education
- Plant and soil sciences
- Astrophysics and Cosmic Phenomena
- Environmental and Ecological Studies
- Spectroscopy and Laser Applications
- Astrophysical Phenomena and Observations
- Historical Art and Architecture Studies
- Ethics and bioethics in healthcare
- Plant Water Relations and Carbon Dynamics
- Regional Development and Innovation
- Finance, Taxation, and Governance
- Libraries, Manuscripts, and Books
- Pulsars and Gravitational Waves Research
- Business, Innovation, and Economy
- Phase Equilibria and Thermodynamics
- Astro and Planetary Science
- Occupational Health and Safety in Workplaces
- Historical Studies of Medieval Iberia
Universidad de Granada
2015-2024
Universidad Tecnológica de Bolívar
2024
University of Illinois Urbana-Champaign
2023
Althaia
2021-2022
Instituto de Salud Carlos III
2008-2019
Max Planck Institute for Astronomy
2018
Max Planck Society
2018
University of Chile
1999-2017
Astronomical Institute of the Slovak Academy of Sciences
2010-2012
Pontifical University of Salamanca
2006-2012
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...
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 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...
We present the first results of a pilot study aimed at understanding influence bars on evolution galaxy discs through their stellar content. examine here kinematics, star formation history, mass-weighted, luminosity-weighted and single population (SSP) equivalent ages metallicities for four galaxies ranging from lenticulars to late-type spirals. The data employed extend 2–3 disc scalelengths, with S/N(Å) > 50, where S/N stands signal-to-noise ratio. Several techniques are explored derive...
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...
We characterised the oxygen abundance radial distribution of a sample 102 spiral galaxies observed with VLT/MUSE using O3N2 calibrator. The high spatial resolution data allowed us to detect 14345 H ii regions same image quality as photometric data, avoiding any dilution effect. developed new methodology automatically fit profiles, finding that 55 exhibit single negative gradient. remaining 47 also display, well this trend, either an inner drop in abundances (21), outer flattening (10), or...
ABSTRACT We explore the chemodynamical properties of a sample barred galaxies in Auriga magnetohydrodynamical cosmological zoom-in simulations, which form boxy/peanut (b/p) bulges, and compare these to Milky Way (MW). show that best reproduce stellar populations MW bulge have quiescent merger histories since redshift z ∼ 3.5: their last major occurs at $t_{\rm lookback}\gt 12\, \rm Gyr$, while subsequent mergers mass ratio ≤1:20, suggesting an upper limit few per cent for recently proposed...
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...
The Time Inference with MUSE in Extragalactic Rings (TIMER) project is a survey the VLT-MUSE integral-field spectrograph of 24 nearby barred galaxies prominent central structures (e.g., nuclear rings or inner discs). main goals are: (i) estimating cosmic epoch when discs settle, leading to formation bars; (ii) testing hypothesis whereby more massive are assembled first; and (iii) characterising history external gas accretion disc galaxies. We present details on sample selection,...
As part of the CALIFA survey, we conducted a thorough 2D analysis ionized gas in two E/S0 galaxies, NGC6762 and NGC5966, aiming to shed light on nature their warm ISM. We present optical IFS obtained with PMAS/PPAK spectrophotometer. To recover nebular lines, subtracted underlying stellar continuum from observed spectra using STARLIGHT code. In NGC6762, emission display similar morphologies, while line morphology is elongated spanning ~6 kpc, oriented roughly orthogonal major axis ellipsoid....
The centres of disc galaxies host a variety structures built via both internal and external processes. In this study, we constrain the formation evolution these central structures, in particular nuclear rings discs, by deriving maps mean stellar ages, metallicities [$\alpha$/Fe] abundances. We use observations obtained with MUSE integral-field spectrograph for TIMER sample 21 massive barred galaxies. Our results indicate that discs are part same physical component, constituting outer edge...
Context. The mass-size relation is a fundamental galaxy scaling that intrinsically linked to formation and evolution. physical processes involved in growth leave their particular imprint on the between stellar or total mass size. Aims. We aim explore effect of large-scale environment using samples selection added-value products from Calar Alto Void Integral-field Treasury surveY (CAVITY) collaboration. Methods. analysed Petrosian R50 R90 radii SDSS DR16 images sample ≈14 000 galaxies...
We use data from the Multi-Unit Spectroscopic Explorer (MUSE), recently commissioned at Very Large Telescope (VLT), to study kinematics and stellar population content of NGC 4371, an early-type massive barred galaxy in core Virgo cluster. integrate this with a detailed structural analysis using imaging Hubble Spitzer Space Telescopes, which allows us perform thorough investigation physical properties galaxy. show that rotationally supported inner components i.e. disc nuclear ring – which,...
SIGNALS, the Star formation, Ionized Gas, and Nebular Abundances Legacy Survey, is a large observing program designed to investigate massive star formation HII regions in sample of local extended galaxies. The will use imaging Fourier transform spectrograph SITELLE at Canada-France-Hawaii Telescope. Over 355 hours (54.7 nights) have been allocated beginning fall 2018 for eight consecutive semesters. Once completed, SIGNALS provide statistically reliable laboratory including over 50 000...