A5013399155- Stellar, planetary, and galactic studies
- Galaxies: Formation, Evolution, Phenomena
- Astrophysics and Star Formation Studies
- Astronomy and Astrophysical Research
- Gamma-ray bursts and supernovae
- Astronomical Observations and Instrumentation
- Astrophysical Phenomena and Observations
- Astrophysics and Cosmic Phenomena
- Astro and Planetary Science
- Spectroscopy and Laser Applications
- Phase Equilibria and Thermodynamics
- Scientific Research and Discoveries
- Radio Astronomy Observations and Technology
- Ionosphere and magnetosphere dynamics
- Gas Dynamics and Kinetic Theory
- Electron and X-Ray Spectroscopy Techniques
- History and Developments in Astronomy
- Computational Fluid Dynamics and Aerodynamics
- Adaptive optics and wavefront sensing
- Pulsars and Gravitational Waves Research
- High-Energy Particle Collisions Research
- Laser-induced spectroscopy and plasma
- Meteorological Phenomena and Simulations
- Solar and Space Plasma Dynamics
- CCD and CMOS Imaging Sensors
Universidad de Granada
2015-2025
University of Cambridge
2008-2018
Cosmos Corporation (United States)
2008-2013
Institute of Astronomy
2010
Instituto de Astrofísica de Canarias
1999-2008
IAC (United States)
2004-2005
Consejo Superior de Investigaciones Científicas
2003-2004
Universidad Nacional Autónoma de México
2002-2003
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...
Dust emission is one of the main windows to physics galaxies and star formation as radiation from young, hot stars absorbed by dust reemitted at longer wavelengths. The recently launched Herschel satellite now provides a view in far-infrared an unequaled resolution quality up 500 μm. In context HERM33ES open time key project, we are studying moderately inclined Scd local group galaxy M33 which located only 840 kpc away. this article, using Spitzer data ranging 3.6 μm μm, along with H i, Hα...
Context. To compute the star formation rate (SFR) of galaxies from rest-frame ultraviolet (UV), it is essential to take obscuration by dust into account. do so, one most popular methods consists in combining UV with emission itself infrared (IR). Yet, different studies have derived estimators, showing that no such hybrid estimator truly universal.
We have fit the far-ultraviolet (FUV) to sub-millimeter (850 micron) spectral energy distributions (SEDs) of 61 galaxies from "Key Insights on Nearby Galaxies: A Far-Infrared Survey with Herschel" (KINGFISH). The fitting has been performed using three models: Code for Investigating GALaxy Evolution (CIGALE), GRAphite-SILicate approach (GRASIL), and Multi-wavelength Analysis Galaxy PHYSical properties (MAGPHYS). analyzed results codes in terms SED shapes, by comparing derived quantities...
Dust and starlight are modeled for the KINGFISH project galaxies. With data from 3.6 micron to 500 micron, models strongly constrained. For each pixel in galaxy we estimate (1) dust surface density; (2) q_PAH, mass fraction PAHs; (3) distribution of intensities heating dust; (4) luminosity emitted by (5) regions with high intensity. The successfully reproduce both global resolved spectral energy distributions. We provide well-resolved maps properties. As previous studies, find q_PAH be an...
Massive star-forming galaxies in the high-redshift universe host large reservoirs of cold gas their circumgalactic medium (CGM). Traditionally, these have been linked to diffuse H I Lyman- α (Ly ) emission extending beyond ≈10 kpc scales. In recent years, millimeter and submillimeter observations started identify even colder CGM through molecular and/or atomic tracers such as [C II ] 158 μm transition. this context, we studied well-known J1000+0234 system at z = 4.54 that hosts a massive...
Abstract We present new observations of the central 1 kpc M82 starburst obtained with James Webb Space Telescope near-infrared camera instrument at a resolution θ ∼ 0.″05–0.″1 (∼1–2 pc). The data comprises images in three mostly continuum filters (F140M, F250M, and F360M), that contain [Fe ii ] (F164N), H 2 v = → 0 (F212N), 3.3 μ m polycyclic aromatic hydrocarbon (PAH) feature (F335M). find prominent plumes PAH emission extending outward from region, together network complex filamentary...
Within the framework of HERM33ES key project, we are studying star forming interstellar medium in nearby, metal-poor spiral galaxy M33, exploiting high resolution and sensitivity Herschel. We use PACS SPIRE maps at 100, 160, 250, 350, 500 micron wavelength, to study variation spectral energy distributions (SEDs) with galacto-centric distance. Detailed SED modeling is performed using azimuthally averaged fluxes elliptical rings 2 kpc width, out 8 Simple isothermal two-component grey body...
We present a multiwavelength (ultraviolet, infrared, optical and CO) study of set luminous HII regions in M33: NGC 604, 595, 592, 588 IC131. the emission distribution interiors to investigate relation between dust at 8 micron 24 location massive stars gas. find that is closely related ionized gas, while more boundaries molecular clouds consistently with its expected association photodissociation (PDRs). Ultraviolet generally surrounded by H-alpha emission. For 604 where CO data are...
Power spectra of deprojected images late-type galaxies in gas or dust emission are very useful diagnostics the dynamics and stability their interstellar medium. Previous studies have shown that power can be approximated as two laws, a shallow one on large scales (larger than 500 pc) steeper small scales, with break between corresponding to line-of-sight thickness galaxy disk. The separates 3D behavior medium controlled by star formation feedback, from 2D driven density waves these regimes...
We study the wavelength dependence of dust emission as a function position and environment across disk M33 at linear resolution 160 pc using Spitzer Herschel photometric data. Expressing emissivity power law, power-law exponent (beta) is estimated from two independent approaches designed to properly treat degeneracy between beta temperature. Both temperature are higher in inner than outer disk, contrary reported beta-T anti-correlations found other sources. In cold + warm model, component...
Context. Over the past decade, 3D optical spectroscopy has become preferred tool for understanding properties of galaxies and is now increasingly used to carry out galaxy surveys. Low redshift surveys include SAURON, DiskMass, ATLAS3D, PINGS, VENGA. At redshifts above 0.7, such as MASSIV, SINS, GLACE, IMAGES have targeted most luminous study mainly their kinematic properties. The on-going CALIFA survey (z ~ 0.02) first a series upcoming integral field (IFS) with large samples representative...
We study the far-infrared emission from nearby spiral galaxy M33 in order to investigate dust physical properties such as temperature and luminosity density across galaxy. Taking advantage of unique wavelength coverage (100, 160, 250, 350 500 micron) Herschel Space Observatory complementing our dataset with Spitzer-IRAC 5.8 8 micron Spitzer-MIPS 24 70 data, we construct maps by fitting two modified blackbodies a fixed emissivity index 1.5. find that 'cool' grains are heated at temperatures...
Context. Measuring star formation at a local scale is important to constrain laws. Yet, it not clear whether and how the measure of affected by spatial which galaxy observed. Aims. We want understand impact resolution on determination spatially resolved rate (SFR) other directly associated physical parameters such as attenuation. Methods. have carried out multi-scale, pixel-by-pixel study nearby M33. Assembling FUV, Halpha, 8, 24, 70, 100 micron maps, we systematically compared emission in...
We present a spatially resolved study of the relation between dust and metallicity in nearby spiral galaxies M 101 (NGC 5457) NGC 628 (M 74). explore chemical abundances their gas stars with content evolution. The empirical oxygen effective yield gas-to-dust mass ratio (GDR) across both disc are derived, sampling 1 dex abundance. find that metal budget most appears consistent predictions simple model evolution for an half one solar, whereas outermost region (|$R\, \ge$| 0.8 |$\rm R_{25}$|)...
In this work, we characterise the contributions from both ongoing star formation and ambient radiation field in Local Group galaxy M33, as well estimate scale of local dust-energy balance (i.e. at which dust is re-emitting starlight generated that same region) through high-resolution radiative transfer (RT) modelling, with defined stellar geometries. We have characterised spectral energy distribution (SED) M33 UV to sub-mm wavelengths, a spatial 100 pc. constructed input maps various...
Scaling laws of dust, HI gas and metal mass with stellar mass, specific star formation rate metallicity are crucial to our understanding the buildup galaxies through their enrichment metals dust. In this work, we analyse how dust content varies ($M_{\text{HI}}$/$M_{\star}$) across a diverse sample 423 nearby galaxies. The observed trends interpreted set Dust Element evolUtion modelS (DEUS) - incluidng production, grain growth, destruction within Bayesian framework enable rigorous search...
We present the morphological parameters and global properties of dust-obscured star formation in typical star-forming galaxies at z = 4–6. Among 26 composed 20 observed by Cycle-8 ALMA Large Program, CRISTAL, 6 from archival data, we individually detect rest-frame 158 μm dust continuum emission 19 galaxies, 9 which are reported for first time. The derived far-infrared luminosities range log 10 L IR [ ⊙ ] 10.9 − 12.4, an order magnitude lower than previously detected massive dusty (DSFGs)....
Abstract In this paper we study the filamentary substructure of 3.3 $\mu$m PAH emission from JWST/NIRCam observations in base M 82 star-burst driven wind. We identify plume-like within with widths ∼50 pc. Several those plumes extend to edge field-of-view, and thus are at least 200–300 pc length. region outflow, vast majority (∼70 per cent) is associated plumes. show that structures contain smaller scale ‘clouds’ ∼5–15 pc, they morphologically similar results ‘cloud-crushing’ simulations....
Context: The emission line of [CII] at 158 micron is one the strongest cooling lines interstellar medium (ISM) in galaxies. Aims: Disentangling relative contributions different ISM phases to emission, a major topic HerM33es program, Herschel key project study nearby spiral galaxy M33. Methods: Using PACS, we have mapped micron, [OI] 63 and other FIR 2'x2' region northern arm M33, centered on HII BCLMP302. At peak H-alpha observed addition velocity resolved spectrum using HIFI. We use...
ABSTRACT Atacama Large Millimeter/submillimeter Array (ALMA) observations revealed the presence of significant amounts dust in first Gyr Cosmic time. However, metal and build-up picture remains very uncertain due to lack constraints on metallicity. JWST has started reveal content high-redshift targets, which may lead firmer dusty galaxies evolution. In this work, we use detailed chemical evolution models explore within ALMA Reionization Era Bright Emission Line Survey (REBELS) survey,...
We aim to provide observational signatures of the dust size evolution in ISM. In particular, we explore indicators polycyclic aromatic hydrocarbon (PAH) mass fraction ($q_{PAH}$), defined as PAHs relative total grains. addition, validate our model by comparing from simulations observations. used hydrodynamic simulation code, GADGET4-OSAKA properties Milky Way-like and NGC 628-like galaxies representing star-forming galaxies. This code incorporates grain distributions driven production...
We have learnt in the last decades that majority of galaxies belong to high density regions interconnected a sponge-like fashion. This large-scale structure is characterised by clusters, filaments, and walls, where most concentrate, but also under-dense called voids. The void within represent an ideal place for study galaxy formation evolution, as they are largely unaffected complex physical processes transform high-density environments. may hold key answer current challenges Lambda CDM...
We present emission line mapping of the strongly barred galaxy NGC 1530 obtained using Fabry-Pérot interferometry in Hα, at significantly enhanced angular resolution compared with previously published studies. The main point work is to examine detail non-circular components velocity field gas, presumably induced by non-axisymmetric gravitational potential bar. To do this we first derive a model rotation curve making minimum assumptions about kinematic symmetry, and go on measure component...