M. Argudo–Fernández
A5032106014- Galaxies: Formation, Evolution, Phenomena
- Astronomy and Astrophysical Research
- Stellar, planetary, and galactic studies
- Astrophysics and Star Formation Studies
- Gamma-ray bursts and supernovae
- Astronomical Observations and Instrumentation
- Astrophysical Phenomena and Observations
- Adaptive optics and wavefront sensing
- Geophysics and Gravity Measurements
- Impact of Light on Environment and Health
- Computational Physics and Python Applications
- Spectroscopy and Laser Applications
- Remote Sensing in Agriculture
- Cold Atom Physics and Bose-Einstein Condensates
- Astro and Planetary Science
- CCD and CMOS Imaging Sensors
- Real-time simulation and control systems
- Algorithms and Data Compression
- Geography and Environmental Studies in Latin America
- Calibration and Measurement Techniques
- Knowledge Societies in the 21st Century
- Advanced Vision and Imaging
- Data Visualization and Analytics
- Higher Education in Latin America
- Cosmology and Gravitation Theories
Universidad de Granada
2013-2024
Pontificia Universidad Católica de Valparaíso
2019-2023
Chinese Academy of Science South America Center for Astronomy
2018-2019
Chinese Academy of Sciences
2018-2019
University of Antofagasta
2016-2019
Shanghai Astronomical Observatory
2015-2017
Instituto de Astrofísica de Andalucía
2004-2015
Consejo Superior de Investigaciones Científicas
2007
Max Planck Society
2005
Abstract We describe the Sloan Digital Sky Survey IV (SDSS-IV), a project encompassing three major spectroscopic programs. The Apache Point Observatory Galactic Evolution Experiment 2 (APOGEE-2) is observing hundreds of thousands Milky Way stars at high resolution and signal-to-noise ratios in near-infrared. Mapping Nearby Galaxies (MaNGA) survey obtaining spatially resolved spectroscopy for nearby galaxies (median <?CDATA $z\sim 0.03$?> ). extended Baryon Oscillation Spectroscopic (eBOSS)...
This paper documents the seventeenth data release (DR17) from Sloan Digital Sky Surveys; fifth and final fourth phase (SDSS-IV). DR17 contains complete of Mapping Nearby Galaxies at Apache Point Observatory (MaNGA) survey, which reached its goal surveying over 10,000 nearby galaxies. The MaNGA Stellar Library (MaStar) accompanies this data, providing observations almost 30,000 stars through instrument during bright time. also Galactic Evolution Experiment 2 (APOGEE-2) survey publicly...
The fourth generation of the Sloan Digital Sky Survey (SDSS-IV) has been in operation since 2014 July. This paper describes second data release from this phase, and 14th SDSS overall (making Data Release Fourteen or DR14). makes taken by SDSS-IV its first two years (2014–2016 July) public. Like all previous releases, DR14 is cumulative, including most recent reductions calibrations phase began operations 2000. New public extended Baryon Oscillation Spectroscopic Survey; Apache Point...
Abstract The fourth generation of the Sloan Digital Sky Survey (SDSS-IV) began observations in 2014 July. It pursues three core programs: Apache Point Observatory Galactic Evolution Experiment 2 (APOGEE-2), Mapping Nearby Galaxies at APO (MaNGA), and Extended Baryon Oscillation Spectroscopic (eBOSS). As well as its program, eBOSS contains two major subprograms: Time Domain (TDSS) SPectroscopic IDentification ERosita Sources (SPIDERS). This paper describes first data release from SDSS-IV,...
Twenty years have passed since first light for the Sloan Digital Sky Survey (SDSS). Here, we release data taken by fourth phase of SDSS (SDSS-IV) across its three operation (July 2014-July 2017). This is third SDSS-IV, and fifteenth from (Data Release Fifteen; DR15). New come MaNGA - 4824 datacubes, as well stellar spectra in Stellar Library (MaStar), set survey-supported analysis products (e.g. gas kinematics, emission line, other maps) Data Analysis Pipeline (DAP), a new visualisation...
Abstract The Mapping Nearby Galaxies at Apache Point Observatory (MaNGA) survey, one of three core programs the fourth-generation Sloan Digital Sky Survey (SDSS-IV), is producing a massive, high-dimensional integral field spectroscopic data set. However, leveraging MaNGA set to address key questions about galaxy formation presents serious data-related challenges due combination its spatially interconnected measurements and sheer volume. For each galaxy, pipelines produce relatively large...
The eighteenth data release of the Sloan Digital Sky Surveys (SDSS) is first one for SDSS-V, fifth generation survey. SDSS-V comprises three primary scientific programs, or "Mappers": Milky Way Mapper (MWM), Black Hole (BHM), and Local Volume (LVM). This contains extensive targeting information two multi-object spectroscopy programs (MWM BHM), including input catalogs selection functions their numerous objectives. We describe production databases calibration- scientifically-focused...
Context. TW Hya is a classical T Tauri star that shows significant radial-velocity variations in the optical regime. These have been attributed to 10 planet orbiting at 0.04 AU.
We study the internal gradients of stellar population properties within 1.5 Re for a representative sample 721 galaxies, with masses ranging between 109 M⊙ and 1011.5 from SDSS-IV MaNGA Integral-Field-Unit survey. Through use our full spectral fitting code firefly, we derive light- mass-weighted their radial gradients, as well star formation metal enrichment histories. also quantify impact that different models routines have on derived gradient measurements. In analysis, find age tend to be...
We present a study of the prevalence optical and radio nuclear activity with respect to environment interactions in sample SDSS galaxies. defined local density parameter tidal forces estimator used cluster richness from literature. The possible correlations between these parameters were removed using principal component analysis. applied stratified statistical method that takes into account effect confounding factors like galaxy mass. found AGN is factor 2-3 lower densest environments, but...
We study the internal radial gradients of stellar population properties within $1.5\;R_{\rm e}$ and analyse impact galaxy environment. use a representative sample 721 galaxies with masses ranging between $10^{9}\;M_{\odot}$ to $10^{11.5}\;M_{\odot}$ from SDSS-IV survey MaNGA. split this by morphology into early-type late-type galaxies. Using full spectral fitting code FIREFLY, we derive light mass-weighted age metallicity, calculate these properties. three independent methods quantify...
We study the properties of 66 galaxies with kinematically misaligned gas and stars from MaNGA survey. The fraction varies galaxy physical parameters, i.e. M*, SFR sSFR. According to their sSFR, we further classify these into three categories, 10 star-forming, 26 "Green Valley" 30 quiescent ones. different types are in that star-forming ones have positive gradient D4000 higher gas-phase metallicity, while green valley/quiescent negative gradients lower metallicity on average. There is...
Gas stripping of spiral galaxies or mergers are thought to be the formation mechanisms lenticular galaxies. In order determine conditions in which each scenario dominates, we derive stellar populations both bulge and disk regions 279 MaNGA survey. We find a clear bimodality age metallicity within population S0s this is strongly correlated with mass. Old metal-rich bulges disks belong massive galaxies, young metal-poor hosted by low-mass From conclude that co-evolving. When ages compared,...
The aim of this work is to study the effects environment on growth in size galaxies. We examine stellar mass-size relation for a sample isolated galaxies interpreted as systems where evolution has been mainly governed by internal processes. Effects are evaluated comparing our results with samples less early- and late-type galaxies, well as, first time, different spiral subtypes. find no difference very early-type that ~1.2 times larger than objects similar mass. Isolated comparison were...
Abstract The large Integral Field Spectroscopy surveys have allowed the classification of ionizing sources emission lines on sub-kiloparsec scales. In this work, we define two non-parametric parameters, quiescence ( F q ) and its concentration C ), to quantify strength spatial distribution quenched areas, respectively, traced by LI(N)ER regions with low EW(H α ). With these measurements, classify MaNGA galaxies into inside-out outside-in quenching types according their locations versus plane...
Abstract Galaxy interaction is considered a key driver of galaxy evolution and star formation (SF) history. In this paper, we present an empirical picture the radial extent interaction-triggered SF along merger sequence. The samples under study are drawn from integral field spectroscopy survey SDSS-IV MaNGA, including 205 star-forming galaxies in pairs/mergers ∼1350 control galaxies. For each pairs, stage identified according to its morphological signatures: incoming phase, at first...
Context. The construction of catalogues galaxies and the a posteriori study galaxy properties in relation to their environment have been hampered by scarce redshift information. new 3-dimensional (3D) surveys permit small, faint, physically bound satellites be distinguished from background-projected population, giving more comprehensive 3D picture surroundings.
We report, for the first time, detection of a sample quenched and isolated dwarf galaxies (with 8.9 $<$ log(M$_{\rm \star}$/M$_{\rm \odot}$) 9.5) in least dense regions cosmic web, including voids, filaments, walls. These dwarfs have no neighbouring galaxy within 1.0~Mpc projected distance. Based on full spectral fitting their central spectra using Sloan Digital Sky Survey data, these are gas-deprived, exhibit stellar mass assembly very similar to clusters, experienced significant star...
We report, for the first time, detection of a sample quenched and isolated dwarf galaxies (with 8.9 $<$ log(M_ ⋆/M_ ⊙) 9.5) in least dense regions cosmic web, including voids, filaments, walls. These dwarfs have no neighboring galaxy within 1.0 Mpc projected distance. Based on full spectral fitting their central spectra using Sloan Digital Sky Survey data, these are gas-deprived, while also exhibiting stellar mass assembly very similar to clusters. Furthermore, they experienced...
In this work we carry out an analysis of star-formation and nuclear activity in the different stages during a galaxy merger identified isolated systems (isolated galaxies, pairs, triplets) using integral field spectroscopy from SDSS-IV/MaNGA project. We classify galaxies into close pre-mergers, mergers, post-mergers (including with post-starburst spectroscopic features), for total sample 137 galaxies. constrained their star formation history spectro- photometric SED fitting CIGALE, used...
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...
There are still many open questions in the complex process of galaxy evolution during interactions, as each stage is characterized by different periods star formation. We aim to better understand processes triggered galaxies interactions. consider low-density environments which in-situ interaction between members main that drives evolution. In this work we carried out an analysis star-formation and nuclear activity at stages a merger identified isolated systems (isolated galaxies, pairs,...
Galaxies grow through both internal and external processes. In about 10% of nearby red galaxies with little star formation, gas stars are counter-rotating, demonstrating the importance acquisition in these galaxies. However, systematic studies such phenomena blue, star-forming rare, leaving uncertain role driving evolution blue Based on new measurements integral field spectroscopy a large representative galaxy sample, we find an appreciable fraction counter-rotators among (9 out 489...
We perform a detailed study of the gamma-ray burst GRB091127/SN2009nz host galaxy at z=0.490 using VLT/X-shooter spectrograph in slit and integral-field unit (IFU). From analysis optical X-ray afterglow data obtained from ground-based telescopes Swift-XRT we confirm presence bump associated with SN2009nz find evidence possible jet break lightcurve. The X-shooter spectra reveal several emission lines underlying host, which derive its integrated properties. These are agreement those previously...