Año de inicio
2003
Subvenciones relacionadas:
General
Descripción
Proyecto enfocado al estudio en el IR del núcleo de las galaxias más cercanas con resoluciones espaciales en el rango de 1 a 10 pc. Estas resoluciones espaciales, accesibles con los grandes telescopios de tierra usando técnicas frontera de observación, son por primera vez comparables a las que se obtienen rutinariamente con HST en el óptico y VLBI en radio. Los objetivos de este proyecto son:
- Desarrollar un grupo leader en el IAC especializado en técnicas de alta resolución espacial en el IR, especificamente en adaptive optics, laser-guide star, speckle and optical interferometry. Para ello, este equipo está involucrado en el desarrollo del primer instrumento de óptica adaptativa para GTC, FRIDA http://www.iac.es/proyecto/frida/, en la definición de programas estratégicos de observación con láser en GTC con GTCAO y en la definición y desarrollo de instrumentación de óptica adaptativa futura para VLT, ERIS http://www.eso.org/~mschoell/ERIS/
- Utilizar estas técnicas para el estudio de centros de galaxias, y sus manifestaciones energéticas, con resoluciones espaciales por debajo de 100mas. Para ello, el equipo desarrolla los siguientes proyectos:
a) Proyecto PARSEC: "The central PARSEC of galaxies http://www.iac.es/project/parsec/main/index.php. Estudio del centro de galaxias más cercanas y brillantes utilizando datos de resolución espacial comparable: radio con VLA, IR con óptica adaptativa e interferometría óptica, y óptico con HST
b) Proyecto PAIS: Particle Accelerators In Space http://www.iac.es/proyecto/jets-and-hotspots-in-radiogalaxies/main/inde…. Estudio de jets y hot-spots en galaxias. El programa explora los procesos físicos que dan lugar a emisión óptica en jets y hot-spots, usando datos con alta resolución espacial procedentes de VLA, HST y VLT.
Miembros
Investigador principal
Almudena
Prieto Escudero
Resultados
- El resultado del Master Tesis de estudiante Elena López se publica en MNRAS, López & Prieto, 2018. IAC Press Release con eco en más de 23 medios de comunicación
- Proyecto PARSEC produce tres resultados de impacto en 2018: dos letters in MNRAS y un artículo en Nature (todos liderados por miembros de PARSEC)
- PARSEC permanece el único estudio de centros de galaxias a nivel internacional basado en el uso simultaneo de multi-longitud de onda, variabilidad y resoluciones de parsecs
- En competición abierta, se gana financiación completa del Gobierno de Brasil para cubrir 1 contrato, 1 ano, en el IAC, para el miembro de PARSEC Dr. Rodríguez-Ardila, para
Actividad científica
Publicaciones relacionadas
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Low optical polarization at the core of the optically thin jet of M87We study the optical linear and circular polarization in the optically thin regime of the core and jet of M87. Observations were acquired two days before the Event Horizon Telescope (EHT) campaign in early 2017 April. A high degree (∼20 per cent) of linear polarization (P lin) is detected in the bright jet knots resolved at $\sim 10\,\mathrm{ to}\Fresco, A. Y. et al.
Fecha de publicación:
62020 -
Examining supernova events in Type 1 active galactic nucleiA statistical study of intermediate Palomar Transient Factory supernovae (SNe) in Type 1 active galactic nuclei (AGNs) has shown a major deficit of supernovae around Type 1 AGN host galaxies, with respect to Type 2 AGN hosts. The aim of this work is to test whether there is any preference for Type 1 AGNs to host SN of a specific kind. Through theVillarroel, Beatriz et al.
Fecha de publicación:
52020 -
Particle acceleration in low-power hotspots: modelling the broad-band spectral energy distributionThe acceleration and radiative processes active in low-power radio hotspots are investigated by means of new deep near-infrared (NIR) and optical Very Large Telescope (VLT) observations, complemented with archival, high-sensitivity VLT, radio Very Large Array (VLA), and X-ray Chandra data. For the three studied radio galaxies (3C 105, 3C 195, andMigliori, G. et al.
Fecha de publicación:
52020 -
On the origin of magnetic driven winds and the structure of the galactic dynamo in isolated galaxiesWe investigate the build-up of the galactic dynamo and subsequently the origin of a magnetic driven outflow. We use a set-up of an isolated disc galaxy with a realistic circum-galactic medium (CGM). We find good agreement of the galactic dynamo with theoretical and observational predictions from the radial and toroidal components of the magneticSteinwandel, Ulrich P. et al.
Fecha de publicación:
32020 -
Jansky VLA observations of synchrotron emitting optical hotspots of 3C 227 and 3C 445 radio galaxiesWe report results on deep Jansky Very Large Array (VLA) A-configuration observations at 22 GHz of the hotspots of the radio galaxies 3C 227 and 3C 445. Synchrotron emission in the optical on scales up to a few kpc was reported for the four hotspots. Our VLA observations point out the presence of unresolved regions with upper limit to their linearOrienti, M. et al.
Fecha de publicación:
32020 -
The resolved size and structure of hot dust in the immediate vicinity of AGNWe use VLTI/GRAVITY near-infrared interferometry measurements of eight bright type 1 AGN to study the size and structure of hot dust that is heated by the central engine. We partially resolve each source, and report Gaussian full width at half-maximum sizes in the range 0.3-0.8 mas. In all but one object, we find no evidence for significantGravity Collaboration et al.
Fecha de publicación:
32020 -
An image of the dust sublimation region in the nucleus of NGC 1068We present near-infrared interferometric data on the Seyfert 2 galaxy NGC 1068, obtained with the GRAVITY instrument on the European Southern Observatory Very Large Telescope Interferometer. The extensive baseline coverage from 5 to 60 Mλ allowed us to reconstruct a continuum image of the nucleus with an unrivaled 0.2 pc resolution in the K-bandGravity Collaboration et al.
Fecha de publicación:
22020 -
The Vanishing and Appearing Sources during a Century of Observations Project. I. USNO Objects Missing in Modern Sky Surveys and Follow-up Observations of a “Missing Star”In this paper we report the current status of a new research program. The primary goal of the “Vanishing and Appearing Sources during a Century of Observations” project is to search for vanishing and appearing sources using existing survey data to find examples of exceptional astrophysical transients. The implications of finding such objects extendVillarroel, B. et al.
Fecha de publicación:
12020 -
COMP2CAT: hunting compact double radio sources in the local UniverseWe present a catalog of compact double radio galaxies (hereafter COMP2CAT) listing 43 edge-brightened radio sources whose projected linear size does not exceed 60 kpc, the typical size of their host galaxies. This is the fifth in a series of radio source catalogs recently created, namely: FRICAT, FRIICAT, FR0CAT, and WATCAT, each of which focusesJimenez-Gallardo, A. et al.
Fecha de publicación:
72019 -
Software architecture of the high-level control of FRIDAFRIDA (inFRared Imager and Dissector for Adaptive optics) is a near-infrared integral-field spectrograph operating at the wavelength range of 0.9 to 2.5 μm for use at the Nasmyth B platform of the Gran Telescopio de Canarias (GTC). FRIDA is a collaborative project led by the Instituto de Astronomía Universidad Nacional Autónoma de México (IA-UNAMGuzmán Alvaréz, C. et al.
Fecha de publicación:
12019 -
A compact jet at the infrared heart of the prototypical low-luminosity AGN in NGC 1052The feeble radiative efficiency characteristic of Low-Luminosity Active Galactic Nuclei (LLAGNs) is ascribed to a sub-Eddington accretion rate, typically at log (Lbol/Ledd) ≲ -3. At the finest angular resolutions that are attainable nowadays using mid-infrared (mid-IR) interferometry, the prototypical LLAGN in NGC 1052 remains unresolved down to 5Fernández-Ontiveros, J. A. et al.
Fecha de publicación:
62019 -
From kpcs to the central parsec of NGC 1097: feeding star formation and a black hole at the same timeA panchromatic view of the star-forming ring and feeding process in the central kpc of the galaxy NGC 1097 is presented. The assembled IR to UV images at ˜10 pc resolution allow us to characterize the population of circa 250 clusters in the ring and disentangle the network of filaments of dust and gas that enshroud and feed them. The ring is aPrieto, M. A. et al.
Fecha de publicación:
52019 -
Probing the high-redshift universe with SPICA: Toward the epoch of reionisation and beyondWith the recent discovery of a dozen dusty star-forming galaxies and around 30 quasars at z > 5 that are hyper-luminous in the infrared (μ L IR > 1013 L⊙, where μ is a lensing magnification factor), the possibility has opened up for SPICA, the proposed ESA M5 mid-/far-infrared mission, to extend its spectroscopic studies toward the epoch ofEgami, E. et al.
Fecha de publicación:
122018 -
Powerful mechanical-driven outflows in the central parsecs of the low-luminosity active galactic nucleus ESO 428-G14Low-luminosity Active Galactic Nuclei (LLAGNs) are characterized for low-radiative efficiency, much less than one percent of their Eddington limit. Nevertheless, their main energy release may be mechanical, opposite to powerful AGN classes like Seyfert and Quasars. This work reports on the jet-driven mechanical energy and the corresponding massMay, D. et al.
Fecha de publicación:
112018 -
A Detection of Sgr A* in the Far InfraredWe report the first detection of the Galactic Center massive black hole, Sgr A*, at 100 μm and 160 μm. Our measurements were obtained with PACS on board the Herschel satellite. While the warm dust in the Galactic Center is too bright to allow for a direct detection of Sgr A*, we measure a significant and simultaneous variation of its flux of {{Δ }}von Fellenberg, S. D. et al.
Fecha de publicación:
82018 -
The photocentre-AGN displacement: is M87 actually harbouring a displaced supermassive black hole?M87 has been identified as a displaced supermassive black hole (SMBH) candidate. We investigated this possibility by a temporal analysis of 12 adaptive-optics assisted VLT and HST images spanning 20 yr. We found that the centre of the isophotal fitting to the nuclear region of M87 - assumed to mark the centre of mass of the galaxy - changesLópez-Navas, E. et al.
Fecha de publicación:
112018 -
A lower limit to the accretion disc radius in the low-luminosity AGNNGC 1052 derived from high-angular resolution dataWe investigate the central sub-arcsec region of the low-luminosity active galactic nucleusNGC 1052, using a high-angular resolution data set that covers 10 orders of magnitude in frequency. This allows us to infer the continuum emission within the innermost ˜17 pc around the black hole to be of non-thermal, synchrotron origin and to set a limit toReb, L. et al.
Fecha de publicación:
72018 -
Embedded AGN and star formation in the central 80 pc of IC 3639Aims: Our goal is to probe the inner structure and the nature of the mid-IR emission in the active galaxy IC 3639, which hosts a Seyfert 2 nucleus and shows signatures of strong star-forming activity. Methods: We used interferometric observations in the N-band with VLTI/MIDI to resolve the mid-IR emission of this nucleus. The origin of the nuclearFernández-Ontiveros, J. A. et al.
Fecha de publicación:
32018 -
Discovery of massive star formation quenching by non-thermal effects in the centre of NGC 1097Observations show that massive star formation quenches first at the centres of galaxies. To understand quenching mechanisms, we investigate the thermal and non-thermal energy balance in the central kpc of NGC 1097—a prototypical galaxy undergoing quenching—and present a systematic study of the nuclear star formation efficiency and its dependenciesTabatabaei, F. S. et al.
Fecha de publicación:
12018 -
Probing the Baryon Cycle of Galaxies with SPICA Mid- and Far-Infrared ObservationsThe SPICA mid- and far-infrared telescope will address fundamental issues in our understanding of star formation and ISM physics in galaxies. A particular hallmark of SPICA is the outstanding sensitivity enabled by the cold telescope, optimised detectors, and wide instantaneous bandwidth throughout the mid- and far-infrared. The spectroscopicvan der Tak, F. F. S. et al.
Fecha de publicación:
12018
