Subvenciones relacionadas:
General
Nuestro proyecto puede dividirse en dos líneas principales de investigación. En primer lugar, el estudio de los vientos producidos por cuásares luminosos oscurecidos y del impacto que estos tienen en sus galaxias anfitrionas (retroalimentación del AGN). Para ello hemos obtenido observaciones infrarrojas y ópticas con los instrumentos del Gran Telescopio CANARIAS (GTC) CanariCam, EMIR y MEGARA, así como datos de ALMA en el rango milimétrico. Parte de esta investigación la realizamos en el marco de la Innovative Training Network BID4BEST, del programa H2020. Nuestro grupo está también fuertemente involucrado en el consorcio internacional GATOS (Galactic Activity, Torus and Outflow Survey), creado con el objetivo de conseguir tiempo en el JWST y ALMA para caracterizar el ciclo del gas y el material que oscurece el núcleo de galaxias activas cercanas. En segundo lugar, nuestra actividad se centra en la aplicación de la espectroscopia de campo integral al estudio de objetos extensos tales como galaxias con formación estelar o galaxias activas para investigar el encendido de ambos fenómenos. Asimismo, contribuimos al desarrollo de nuevos instrumentos y técnicas de análisis de datos relacionadas con la espectroscopia 3D. En particular, participamos en el desarrollo del espectrógrafo de campo integral de alta resolución HARMONI, uno de los instrumentos de primera luz del Extremely Large Telescope de la ESO.
Miembros
Resultados
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Publicación de una letter en MNRAS donde estudiamos la conexión entre los vientos de gas ionizado y las poblaciones estelares jóvenes en el cuásar de tipo 2 Mrk 34 (Bessiere & Ramos Almeida 2022). Encontramos evidencias de retroalimentación positiva y negativa en distintas partes de la misma galaxia, inducidas por el viento. Este trabajo, parte del proyecto QSOFEED, abre una nueva ventana a la investigación del impacto directo de la actividad nuclear en la formación estelar en galaxias.
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Publicación de un estudio detallado sobre la cinemática del gas ionizado y molecular templado en el cuásar de tipo 2 J0945+1737, parte de la muestra QSOFEED (Speranza et al. 2022). Encontramos evidencias de un viento de gas ionizado con un outflow mass rate máximo de 51 Msun/yr, y ausencia de su contrapartida de gas molecular templado.
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La red europea H2020-ITN-2019 "Big Data Applications for Black Hole Evolution Studies" (BID4BEST) comenzó el 1 de marzo de 2020 (fecha de fin febrero 2024). La doctoranda Giovanna Speranza se unió a nuestro grupo en Septiembre de 2020.
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La financiación externa conseguida por C. Ramos Almeida (452.000 euros) y B. García Lorenzo (700.000 euros) en el marco de este proyecto asciende a 1.152.000 euros. Estos fondos sólo incluyen aquellos proyectos cuya fecha de inicio es 2020 y posterior, y la mayor parte de ellos se ha invertido en la contratación de nuevo personal científico y técnico.
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Publicación de los dos primeros artículos basados en la muestra de GATOS (García-Burillo et al. 2021; Alonso-Herrero et al. 2021). La colaboración GATOS ha obtenido dos propuestas aprobadas en el Ciclo 1 del JWST, lideradas por D. Rosario (University of Newcastle, Reino Unido) y Taro Shimizu (MPE, Alemania).
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Publicación de un estudio sobre morfología y cinemática del gas molecular frío de una muestra de cuásares de tipo 2 (QSO2s) a z=0.1 (Ramos Almeida et al. 2022). Para ello se hizo uso de datos del interferómetro ALMA en el rango milimétrico. Este trabajo es parte del proyecto QSOFEED.
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Publicación del trabajo García-Lorenzo et al. (2022), en el cual se presenta un análisis de las capacidades de HARMONI para desentrañar las propiedades morfo-cinemáticas de las galaxias anfitrionas de AGN en el llamado "mediodía cósmico".
Actividad científica
Publicaciones relacionadas
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The diverse cold molecular gas contents, morphologies, and kinematics of type-2 quasars as seen by ALMAWe present CO(2−1) and adjacent continuum observations of seven nearby radio-quiet type-2 quasars (QSO2s) obtained with ALMA at ∼0.2″ resolution (370 pc at z ∼ 0.1). These QSO2s are luminous (L [OIII] > 10 8.5 L ⊙ ∼ M B < −23), and their host galaxies massive (M * ∼ 10 11 M ⊙). The CO morphologies are diverse, including disks and interactingRamos Almeida, C. et al.
Fecha de publicación:
22022 -
Do AGN triggering mechanisms vary with radio power? - II. The importance of mergers as a function of radio power and optical luminosityInvestigation of the triggering mechanisms of radio active galactic nuclei (radio AGN) is important for improving our general understanding of galaxy evolution. In the first paper in this series, detailed morphological analysis of high-excitation radio galaxies (HERGs) with intermediate radio powers suggested that the importance of triggering viaPierce, J. C. S. et al.
Fecha de publicación:
22022 -
CO kinematics unveil outflows plausibly driven by a young jet in the gigahertz peaked radio core of NGC 6328We report the detection of outflowing molecular gas in the center of the nearby (z = 0.014) massive radio galaxy NGC 6328. The radio core of the galaxy, PKS B1718-649, is identified as a gigahertz peaked spectrum source with a compact (2 pc) double radio lobe morphology. We used ALMA CO(2-1) and CO(3-2) observations at 100 pc resolution to studyPapachristou, Michalis et al.
Fecha de publicación:
112021 -
Black hole feeding and star formation in NGC 1808We report on Atacama Large Millimeter Array (ALMA) observations of CO(3−2) emission in the Seyfert2/starburst galaxy NGC 1808, at a spatial resolution of 4 pc. Our aim is to investigate the morphology and dynamics of the gas inside the central 0.5 kpc and to probe the nuclear feeding and feedback phenomena. We discovered a nuclear spiral of radiusAudibert, A. et al.
Fecha de publicación:
112021 -
Modeling the Unresolved NIR-MIR SEDs of Local (z < 0.1) QSOsTo study the nuclear (≲1 kpc) dust of nearby (z < 0.1) quasi-stellar objects (QSOs), we obtained new near-infrared (NIR) high angular resolution (~0.″3) photometry in the H and Ks bands for 13 QSOs with available mid-infrared (MIR) high angular resolution spectroscopy (~7.5-13.5 μm). We find that in most QSOs, the NIR emission is unresolved. WeMartínez-Paredes, M. et al.
Fecha de publicación:
122021 -
Capturing dual AGN activity and kiloparsec-scale outflows in IRAS 20210+1121The most standard scenario for the evolution of massive galaxies across cosmic time assumes a correspondence based on the interplay between active galactic nuclei (AGN) feedback, which injects large amounts of energy into the host environment, and galaxy mergers, with their ability to trigger massive star formation events and accretion ontoSaturni, F. G. et al.
Fecha de publicación:
102021 -
The MURALES survey. IV. Searching for nuclear outflows in 3C radio galaxies at z < 0.3 with MUSE observationsWe analyze VLT/MUSE observations of 37 radio galaxies from the Third Cambridge catalogue (3C) with redshift < 0.3 searching for nuclear outflows of ionized gas. These observations are part of the MURALES project (a MUse RAdio Loud Emission line Snapshot survey), whose main goal is to explore the feedback process in the most powerful radio-loud AGNSperanza, G. et al.
Fecha de publicación:
92021 -
The dust-gas AGN torus as constrained from X-ray and mid-infrared observationsContext. In recent decades, several multiwavelength studies have been dedicated to exploring the properties of the obscuring material in active galactic nuclei (AGN). Various models have been developed to describe the structure and distribution of this material and constrain its physical and geometrical parameters through spectral fittingEsparza-Arredondo, D. et al.
Fecha de publicación:
72021 -
The Galaxy Activity, Torus, and Outflow Survey (GATOS). II. Torus and polar dust emission in nearby Seyfert galaxiesWe compare high angular resolution mid-infrared (mid-IR) and Atacama Large Millimeter/submillimeter Array (ALMA) far-infrared (far-IR) images of twelve nearby (median 21 Mpc) Seyfert galaxies selected from the Galaxy Activity, Torus, and Outflow Survey (GATOS). The mid-IR unresolved emission contributes more than 60% of the nuclear (diameters of 1Alonso-Herrero, A. et al.
Fecha de publicación:
82021 -
The Galaxy Activity, Torus, and Outflow Survey (GATOS). I. ALMA images of dusty molecular tori in Seyfert galaxiesWe present the first results of the Galaxy Activity, Torus, and Outflow Survey (GATOS), a project aimed at understanding the properties of the dusty molecular tori and their connection to the host galaxy in nearby Seyfert galaxies. Our project expands the range of active galactic nuclei (AGN) luminosities and Eddington ratios covered by previousGarcía-Burillo, S. et al.
Fecha de publicación:
82021 -
The origin of bulges and discs in the CALIFA survey - I. Morphological evolutionThis series of papers aims at understanding the formation and evolution of non-barred disc galaxies. We use the new spectro-photometric decomposition code, C2D, to separate the spectral information of bulges and discs of a statistically representative sample of galaxies from the CALIFA survey. Then, we study their stellar population propertiesMéndez-Abreu, J. et al.
Fecha de publicación:
62021 -
Composite bulges - II. Classical bulges and nuclear discs in barred galaxies: the contrasting cases of NGC 4608 and NGC 4643We present detailed morphological, photometric, and stellar-kinematic analyses of the central regions of two massive, early-type barred galaxies with nearly identical large-scale morphologies. Both have large, strong bars with prominent inner photometric excesses that we associate with boxy/peanut-shaped (B/P) bulges; the latter constitute ∼30 perErwin, Peter et al.
Fecha de publicación:
42021 -
Galaxies within galaxies in the TIMER survey: stellar populations of inner bars are scaled replicas of main barsInner bars are frequent structures in the local Universe and thought to substantially influence the nuclear regions of disc galaxies. In this study we explore the structure and dynamics of inner bars by deriving maps and radial profiles of their mean stellar population content and comparing them to previous findings in the context of main bars. ToBittner, Adrian et al.
Fecha de publicación:
22021 -
Space Telescope and Optical Reverberation Mapping Project. IX. Velocity-Delay Maps for Broad Emission Lines in NGC 5548In this contribution, we achieve the primary goal of the active galactic nucleus (AGN) STORM campaign by recovering velocity-delay maps for the prominent broad emission lines (Lyα, C IV, He II, and Hβ) in the spectrum of NGC 5548. These are the most detailed velocity-delay maps ever obtained for an AGN, providing unprecedented information on theHorne, Keith et al.
Fecha de publicación:
22021 -
Integral Field Spectroscopy of Planetary Nebulae with MUSEThe Multi-Unit Spectroscopic Explorer (MUSE) is a large integral field unit mounted on the ESO Very Large Telescope. Its spatial (60 arcsecond field) and wavelength (4800-9300Å) coverage is well suited to detailed imaging spectroscopy of extended planetary nebulae, such as in the Galaxy. An overview of the capabilities of MUSE applied to PlanetaryWalsh, Jeremy R. et al.
Fecha de publicación:
42020 -
The complex multi-component outflow of the Seyfert galaxy NGC 7130Active galactic nuclei (AGN) are a key ingredient for understanding galactic evolution, as their activity is coupled to the host galaxy properties through feedback processes. AGN-driven outflows are one of the manifestations of this feedback. The laser guide star adaptive optics mode for MUSE at the VLT now permits us to study the innermost tens ofComerón, S. et al.
Fecha de publicación:
12021 -
Multiphase feedback processes in the Sy2 galaxy NGC 5643We study the multiphase feedback processes in the central ∼3 kpc of the barred Seyfert 2 galaxy NGC 5643. We used observations of the cold molecular gas (ALMA CO(2-1) transition) and ionized gas (MUSE IFU optical emission lines). We studied different regions along the outflow zone, which extends out to ∼2.3 kpc in the same direction (east-west) asGarcía-Bernete, I. et al.
Fecha de publicación:
12021 -
Searching for molecular gas inflows and outflows in the nuclear regions of five Seyfert galaxiesActive galactic nucleus (AGN) driven outflows are believed to play an important role in regulating the growth of galaxies, mostly via negative feedback. However, their effects on their hosts are far from clear, especially for low- and moderate-luminosity Seyferts. To investigate this issue, we obtained cold molecular gas observations, traced by theDomínguez-Fernández, A. J. et al.
Fecha de publicación:
112020 -
Stellar populations and physical properties of starbursts in the antennae galaxy from self-consistent modelling of MUSE spectraWe have modelled the stellar and nebular continua and emission-line intensity ratios of massive stellar populations in the Antennae galaxy using high resolution and self-consistent libraries of model H II regions around central clusters of ageing stars. The model libraries are constructed using the stellar population synthesis code, STARBURST99Gunawardhana, M. L. P. et al.
Fecha de publicación:
82020 -
Cold molecular gas and PAH emission in the nuclear and circumnuclear regions of Seyfert galaxiesWe investigate the relation between the detection of the 11.3 μm polycyclic aromatic hydrocarbon (PAH) feature in the nuclear (∼24-230 pc) regions of 22 nearby Seyfert galaxies and the properties of the cold molecular gas. For the former we use ground-based (0.3-0.6″ resolution) mid-infrared (mid-IR) spectroscopy. The cold molecular gas is tracedAlonso-Herrero, A. et al.
Fecha de publicación:
72020
