Á. Labiano
A5028026802- Galaxies: Formation, Evolution, Phenomena
- Astrophysics and Star Formation Studies
- Astronomy and Astrophysical Research
- Stellar, planetary, and galactic studies
- Astrophysical Phenomena and Observations
- Gamma-ray bursts and supernovae
- Vehicle emissions and performance
- Astrophysics and Cosmic Phenomena
- Spectroscopy and Laser Applications
- Adaptive optics and wavefront sensing
- Astronomical Observations and Instrumentation
- Radio Astronomy Observations and Technology
- Calibration and Measurement Techniques
- Atmospheric Ozone and Climate
- Superconducting and THz Device Technology
- Molecular Spectroscopy and Structure
- Astro and Planetary Science
- Spacecraft and Cryogenic Technologies
- Particle Accelerators and Free-Electron Lasers
- Particle accelerators and beam dynamics
- Pulsars and Gravitational Waves Research
- Superconducting Materials and Applications
- GNSS positioning and interference
- Atomic and Molecular Physics
- Solar and Space Plasma Dynamics
European Space Astronomy Centre
2010-2024
Centro de Astrobiología
2014-2024
Dublin Institute For Advanced Studies
2023-2024
European Space Agency
2023-2024
RIKEN
2024
Pioneer (Japan)
2024
ETH Zurich
2014-2023
European Centre for Space Applications and Telecommunications
2023
Astrobiology Center
2019-2021
Max Planck Institute for Astronomy
2019
Aims. We investigate the fueling and feedback of star formation nuclear activity in NGC 1068, a nearby (D = 14 Mpc) Seyfert 2 barred galaxy, by analyzing distribution kinematics molecular gas disk. aim to understand if how accretion can self-regulate.
Abstract The Mid-Infrared Instrument (MIRI) extends the reach of James Webb Space Telescope (JWST) to 28.5 μ m. It provides subarcsecond-resolution imaging, high sensitivity coronagraphy, and spectroscopy at resolutions λ /Δ ∼ 100–3500, with high-resolution mode employing an integral field unit provide spatial data cubes. resulting broad suite capabilities will enable huge advances in studies over this wavelength range. This overview describes history acquiring capability for JWST. discusses...
The Medium-Resolution Spectrometer (MRS) provides one of the four operating modes Mid-Infrared Instrument (MIRI) on board James Webb Space Telescope (JWST). MRS is an integral field spectrometer, measuring spatial and spectral distributions light across 5-28 $\mu m$ wavelength range with a resolving power between 3700-1300. We present MRS's optical, spectral, spectro-photometric performance, as achieved in flight, we report effects that limit instrument's ultimate sensitivity. flight...
Abstract We present the ultraviolet luminosity function and an estimate of cosmic star formation rate density at 8 < z 13 derived from deep NIRCam observations taken in parallel with MIRI Deep Survey Hubble Ultra Field (HUDF), covering field 2. Our (40 hr) reach F277W magnitude 30.8 (5 σ ), more than 2 mag deeper JWST public data sets already analyzed to find high-redshift galaxies. select a sample 44 > galaxy candidates based on their dropout nature F115W and/or F150W filters, high...
Abstract We describe an algorithm for application of the classic “drizzle” technique to produce 3D spectral cubes using data obtained from slicer-type integral field unit (IFU) spectrometers on board James Webb Space Telescope. This relies upon computation overlapping volume elements (composed two spatial dimensions and one dimension) between 2D detector pixels cube voxels, is greatly simplified by treating overlaps separately at cost just 0.03% in spectrophotometric fidelity. provide a...
Context . JWST has taken the sharpest and most sensitive infrared (IR) spectral imaging observations ever of Orion Bar photodis-sociation region (PDR), which is part nearest massive star-forming Nebula, often considered to be ‘prototypical’ strongly illuminated PDR. Aims We investigate impact radiative feedback from stars on their natal cloud focus transition H II atomic PDR – crossing ionisation front (IF) –, subsequent molecular dissociation (DF). Given prevalence PDRs in interstellar...
Abstract We describe the spectrophotometric calibration of Mid-Infrared Instrument’s (MIRI) Medium Resolution Spectrometer (MRS) aboard James Webb Space Telescope. This is complicated by a time-dependent evolution in effective throughput MRS; this strongest at long wavelengths, approximately factor 2 25 μ m over first yr mission. model and correct for through regular observations internal lamps. Pixel flat fields are constructed from infrared-bright planetary nebula NGC 7027, photometric...
The Mid-InfraRed Instrument (MIRI) on the James Webb Space Telescope (JWST) provides measurements over wavelength range 5 to 28.5 μm. MIRI has, within a single "package," four key scientific functions: photometric imaging, coronagraphy, single-source low-spectral resolving power (R ∼ 100) spectroscopy, and medium-resolving 1500 3500) integral field spectroscopy. An associated cooler system maintains at its operating temperature of < 6.7 K. This paper describes driving principles behind...
We present the first results of Galaxy Activity, Torus and Outflow Survey (GATOS), a project aimed at understanding properties dusty molecular tori their connection to host galaxy in nearby Seyfert galaxies. Our expands range AGN luminosities Eddington ratios covered by previous surveys Seyferts conducted ALMA allows us study gas feeding feedback cycle combined sample 19 Seyferts. used obtain new images emission dust using CO(3-2) HCO+(4-3) lines as well underlying continuum 870 microns with...
Context. The Mid-Infrared Instrument (MIRI) onboard the James Webb Space Telescope (JWST) will provide imaging, coronagraphy, low-resolution spectroscopy, and medium-resolution spectroscopy at unprecedented sensitivity levels in mid-infrared wavelength range. Medium Resolution Spectrometer (MRS) of MIRI is an integral field spectrograph that provides diffraction-limited between 4.9 28.3 μm, within a view (FOV) varying from ∼13 to ∼56 arcsec square. design for MRS conforms with goals JWST...
Abstract Massive stars disrupt their natal molecular cloud material through radiative and mechanical feedback processes. These processes have profound effects on the evolution of interstellar matter in our Galaxy throughout universe, from era vigorous star formation at redshifts 1–3 to present day. The dominant can be probed by observations Photo-Dissociation Regions (PDRs) where far-ultraviolet photons massive create warm regions gas dust neutral atomic gas. PDR emission provides a unique...
Polycyclic Aromatic Hydrocarbons (PAHs) are carbon-based molecules that ubiquitous in a variety of astrophysical objects and environments. In this work, we use JWST/MIRI MRS spectroscopy three Seyferts to compare their nuclear PAH emission with star-forming regions. This study represents the first its kind using sub-arcsecond angular resolution data local luminous (Lbol>10^44.46 erg/s) on wide wavelength coverage (4.9-28.1 micron). We present an analysis properties by comparing observed...
The MRS is one of the four observing modes JWST/MIRI. Using JWST in-flight data unresolved (point) sources, we can derive absolute spectral response function (ASRF) starting from raw data. Spectral fringing plays a critical role in derivation and interpretation ASRF. In this paper, present an alternative way to calibrate Firstly, aim fringe correction that accounts for dependence properties on MIRI pupil illumination detector pixel sampling point spread function. Secondly, ASRF using flux...
Abstract We make use of JWST medium-band and broadband NIRCam imaging, along with ultradeep MIRI 5.6 μ m in the Hubble eXtreme Deep Field to identify prominent line emitters at z ≃ 7–8. Out a total 58 galaxies 7–8, we find 18 robust candidates (≃31%) for (H β + [O iii ]) emitters, based on their enhanced fluxes F430M F444W filters, EW 0 +[O ≃87–2100 Å. Among these 16 lie coverage area 12 exhibit clear flux excess m, indicating simultaneous presence H α emission ) ≃200–3000 This is first time...
Abstract We present here the first ever mid-infrared spectroscopic time series observation of transiting exoplanet L 168-9 b with Mid-Infrared Instrument (MIRI) on James Webb Space Telescope. The data were obtained as part MIRI commissioning activities, to characterize performance Low Resolution Spectroscopy (LRS) mode for these challenging observations. To assess LRS performance, we performed two independent analyses data. find that a single transit reached spectro-photometric precision ∼50...
Using MIRI on-board JWST we present mid-infrared sub-arcsec imaging (MIRIM) and spectroscopy (MRS) of the hyperluminous infrared system SPT0311-58 at z=6.9. observations are compared with existing ALMA far-infrared continuum [CII]158$\mu$m imaging. Even though suggests very high star formation rates (SFR) in eastern (E) western (W) galaxies system, H$\alpha$ line is not detected. This, together detection Pa$\alpha$ line, implies optical nebular extinction lower limits 4.2 3.9 mag (W), even...
We present MIRI/JWST medium-resolution spectroscopy (MRS) and imaging (MIRIM) of the lensed galaxy MACS1149-JD1 at a redshift z = 9.1092 ± 0.0002, when Universe was about 530 Myr old. detect, for first time, spatially resolved H α emission in above nine. The structure emitting gas consists two clumps, S N, carrying 60% 40% total flux, respectively. luminosity implies an instantaneous star-formation rate range 3.2 0.3 5.3 0.4 M ⊙ yr −1 sub-solar solar metallicities. ionizing photon production...
Most low-mass stars form in stellar clusters that also contain massive stars, which are sources of far-ultraviolet (FUV) radiation. Theoretical models predict this FUV radiation produces photodissociation regions (PDRs) on the surfaces protoplanetary disks around affects planet formation within disks. We report James Webb Space Telescope and Atacama Large Millimeter Array observations a FUV-irradiated disk Orion Nebula. Emission lines detected from PDR; modeling their kinematics excitation...
Abstract By using an ultradeep JWST/MIRI image at 5.6 μ m in the Hubble eXtreme Deep Field, we constrain role of strong H α emitters (HAEs) during “cosmic reionization” z ≃ 7–8. Our sample HAEs is comprised young (<35 Myr) galaxies, except for one single galaxy (≈300 Myr), with low stellar masses (≲10 9 M ⊙ ). These show a wide range rest-frame UV continuum slopes ( β ), median value = −2.15 ± 0.21, which broadly correlates mass. We estimate ionizing photon production efficiency ξ ion,0 )...
Abstract We present deep James Webb Space Telescope (JWST)/Mid-Infrared Instrument (MIRI) F560W observations of a flux-limited, Atacama Large Millimeter/submillimeter Array (ALMA)-selected sample 28 galaxies at z = 0.5–3.7 in the Hubble Ultra Deep Field (HUDF). The data from MIRI Imaging Survey (MIDIS) reveal stellar structure HUDF rest-frame wavelengths λ > 1 μ m for first time. revise mass estimates using new JWST photometry and find good agreement with pre-JWST analyses; few...
We present a new sample of Compact Steep Spectrum (CSS) sources with radio luminosity below 10^26 W/Hz at 1.4 GHz called the low compact (LLC) objects. The have been selected from FIRST survey and observed MERLIN L-band C-band. main criterion used for selection was objects approximately one third CSS value comparable to FRIs. About 80% resolved about 30% them weak extended emission disturbed structures when compared observations higher sources. studied correlation between power linear size,...
We present ALMA Band 6 $^{12}$CO(2--1) line and rest-frame 232GHz continuum observations of the nearby Compton-thick Seyfert galaxy NGC5643 with angular resolutions 0.11-0.26arcsec (9-21pc). The CO(2--1) integrated map reveals emission from nuclear circumnuclear region a two-arm spiral extending 10arcsec on each side. kinematics can be fitted rotating disk, although there are regions large residual velocities and/or velocity dispersions. profiles these show two different components. One is...