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Article
Identification and properties of intense star-forming galaxies at redshifts z > 10
Surveys with the James Webb Space Telescope (JWST) have discovered candidate galaxies in the first 400 Myr of cosmic time. Preliminary indications have suggested these candidate galaxies may be more massive an...
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Article
Star formation inside a galactic outflow
Star formation at a rate of more than 15 solar masses a year has been observed inside a massive outflow of gas from a nearby galaxy; this could also be happening inside other galactic outflows.
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Article
Open AccessP8.11 Adipokine Dysregulation is Associated with Arterial Stiffness in a Model of Diet-Induced Obesity in Mice
The aim of this work was to analyze vascular remodeling and mechanical alterations in mesenteric arteries in a model of diet-induced obesity in mice, as well as the impact of adipokine dysregulation in those c...
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Chapter and Conference Paper
Photometric and Kinematic Characterization of Tidal Dwarf Galaxy Candidates
Tidal Dwarf Galaxies (TDG), or self-gravitating objects created from the tidal forces in interacting galaxies, have been found in several merging systems. This work will focus on identifying TDG candidates amo...
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Chapter and Conference Paper
Integral Field Spectroscopy of (U)LIRGs. From VLT to JWST
Some first results from the Integral Field Spectroscopy Survey of (U)LIRGs using VLT instruments VIMOS and SINFONI are presented. Detailed studies of the two-dimensional ionization structure and kinematics of ...
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Chapter and Conference Paper
3D Spectroscopy of Low-z (Ultra)Luminous Infrared Galaxies
We are using integral field spectroscopy (IFS) data together with archival Hubble Space Telescope (HST) images, for carrying out a program aimed at studying a representative sample of local luminous and ultralumi...
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Chapter and Conference Paper
The Potential of Integral Field Spectroscopy Observing Extrasolar Planet Transits
We explore the use of Integral Field Spectroscopy (IFS) for observing extrasolar planet transits. We show that IFS can improve the photometric accuracy in high S/N time series observations with respect to stan...
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Chapter and Conference Paper
The Integral Field Unit of the Near Infrared Spectrograph for JWST
The Near Infrared Spectrograph (NIRSpec) on board of the James Webb Space Telescope (JWST) will be equipped with an Integral Field Unit (IFU) which will allow the two-dimensional spectral characterization of a...
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Chapter and Conference Paper
Optical Spectra in the Non-Nuclear Regions of ULIRGs: Evidence of Ionization by Shocks
In this contribution we present the analysis of the ionization structure of a sample of six low-z Ultraluminous Infrared Galaxies using Integral Field Spectroscopy. We discuss the possible ionizing mechanisms ...
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Chapter and Conference Paper
2D Kinematics and Mass Derivations in ULIRGs
Integral field optical fiber spectroscopy obtained with the INTEGRAL system, together with archival HST (WFPC2 and NICMOS) images, is used to carry out a program aimed at studying the internal physical structure ...
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Chapter and Conference Paper
Analysis of The Ionizing Sources of IRAS 14348–1447 with Integral
Ultraluminous Infrared Galaxies (with L bol ∼ L IR ≥ 1012 L⊙) have been object of numerous studies in the last years (Sanders & Mirabel 1996, ARA&A, 34, 749 for a review), but it’s not...
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Article
Integral Field Spectroscopy of Active Galaxies
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Article
Two-Dimensional Spectroscopy of NGC 2992
We present the preliminary results obtained from two-dimensional spectroscopy with optical fibres of the circumnuclear region of the Seyfert 2 galaxy NGC 2992. The inner region of NGC 2992 seems not to be pert...
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Article
Integral Field Spectroscopy of Six Seyfert Galaxies
We summarize the main conclusions derived from integral field spectroscopy, with optical fibres, of six Seyfert galaxies. More than 95 spectra around the active nucleus have been obtained showing asymmetric em...
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Chapter
Integral Field Spectroscopy of Active Galaxies
Integral Field Spectroscopy techniques are ideal to study objects of complex morphology and kinematics such as the circumnuclear region of AGNs. We have obtained the stellar and ionized gas kinematics of a sam...
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Article
Two-dimensional optical spectroscopy of ULIRG's: comparison with HST imaging
We present preliminary results of our programme aimed at the study of asample of ULIRGs on the basis of two-dimensional (integral field)optical spectroscopy and multi-frequency high spatial resolution HSTimagi...
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Article
Stellar Velocity Field in the Central Region of NGC 1068
We present the velocity field of the stars in the central 25″ × 22″ of NGC 1068 derived from 2-D spectroscopy of the Ca II triplet. A preliminary analysis provides evidence for two distinct stellar systems in ...
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Article
Ionized Gas Velocity Field in Central Region of NGC 1068 Inferred from the [O III] λλ 4959,5007 and [S III] λ 9069 Lines
From 2-D spectroscopy of the [O III] λλ 4959,5007 and [S III] λ 9069 lines we have studied the ionized gas-velocity field in the central regions of NGC 1068. The existence of a strong bipolar outflow of ionize...
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Article
Kinematic Subsystems of the Ionized Gas in the Central Region of NGC 1068 Inferred from the [O III] λλ 4959, 5007 and [S III] λ 9069 Emission Lines
We discuss the multi-Gaussian decomposition of the [O III] λλ 4959,5007 emission line profiles from 2-D spectroscopy. We found that a model based on five main gaseous components can reproduce the observed line...
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Chapter and Conference Paper
Mg2 Index Map of the Centre of NGC 7331
Simultaneous bidimensional spectroscopy of the circumnuclear region (12″ × 9″) of the active galaxy NGC 7331 has been obtained using an optical fibre system (2D-FIS). We have used these data to obtain the Mg2 ind...
