Física de Nebulosas Ionizadas

    General
    Descripción

    Este proyecto mantiene dos líneas principales de investigación activas:

    1) Estudio de la estructura, condiciones físicas y composición química de las nebulosas ionizadas, tanto galácticas como extragalácticas, a través del análisis detallado y modelización de sus espectros. Investigación de los gradientes de composición química a lo largo del disco de nuestra galaxia y en galaxias cercanas.

    2) Determinar las condiciones físico-químicas de las nebulosas planetarias galácticas con geometría bipolar y de las nebulosas alrededor de estrellas simbióticas. El fin es entender el origen de la bipolaridad y poner a prueba los modelos teóricos que intentan explicar la morfología y la cinemática nebular, con especial énfasis en los modelos con estrellas binarias centrales. Estudiaremos también las implicaciones de la evolución de los sistemas binarios en otros escenarios astrofísicos, como la formación de jets, las variables cataclismicas y las explosiones de tipo nova y supernova

    Investigador principal
    Gestor del proyecto
    Personal del proyecto
    Colaboradores
    Dr.
    A.R. López Sánchez
    Dr.
    N.C. Sterling
    Dra.
    Karla Z. Arellano Córdoba
    Dr.
    T. Hillwig
    Dr.
    M. Santander García
    Prof.
    B. Balick
    Dr.
    D. R. Gonçalves
    Dra.
    K. Kwitter
    Dr.
    A. Prsa
    1. Usando espectros en el rango infrarojo cercano obtenidos con EMIR/GTC, se han detectado por primera vez líneas de emisión de telurio y bromo en dos nebulosas planetarias. Estas son detecciones de elementos pesados en uno de los lugares en dónde se forman, nos dan información sobre el patrón de abundancias de elementos pesados debido al proceso-r y al proceso-s.

    Publicaciones relacionadas

    Revisiting the radial abundance gradients of nitrogen and oxygen of the Milky Way 2018MNRAS.478.2315E
    C/O ratios in planetary nebulae with dual-dust chemistry from faint optical recombination lines 2018MNRAS.473.4476G
    The planetary nebula IC 4776 and its post-common-envelope binary central star 2017MNRAS.471.3529S
    The radial abundance gradient of oxygen towards the Galactic anti-centre 2017MNRAS.471..987E
    Neutron-capture element abundances in the planetary nebula NGC 5315 from deep optical and near-infrared spectrophotometry★† 2017MNRAS.471.1341M
    The kinematic behaviour of optical recombination lines and collisionally excited lines in Galactic planetary nebulae*† 2017MNRAS.472.1182P
    Identification of Near-infrared [Se iii] and [Kr vi] Emission Lines in Planetary Nebulae 2017ApJ...840...80S
    Carbon and oxygen in H II regions of the Magellanic Clouds: abundance discrepancy and chemical evolution 2017MNRAS.467.3759T
    Detection of a large Be circumstellar disk during X-ray quiescence of XTE J1946+274 2015A&A...582A..53O
    The radial abundance gradient of chlorine in the Milky Way 2015MNRAS.452.1553E
    s-process enrichment in the planetary nebula NGC 3918. Results from deep echelle spectrophotometry 2015MNRAS.452.2606G
    Ionized gas in the XUV disc of the NGC 1512/1510 system 2015MNRAS.450.3381L
    Binarity and the Abundance Discrepancy Problem in Planetary Nebulae 2015ApJ...803...99C
    Observing and Reducing IFUs: INTEGRAL and PMAS—Properties of the Ionized Gas in HH 202 2014AdAst2014E...2L
    PyNeb: a new tool for analyzing emission lines. I. Code description and validation of results 2015A&A...573A..42L
    Physical conditions derived from O II recombination lines in planetary nebulae and their implications 2014RMxAA..50..329P
    The Cocoon nebula and its ionizing star: do stellar and nebular abundances agree? 2014A&A...571A..93G
    Recent activity of the Be/X-ray binary system SAX J2103.5+4545 2014A&A...568A.115C
    Kinematic study of planetary nebulae in NGC 6822 2014A&A...568A..82F
    Carbon and oxygen abundances from recombination lines in low-metallicity star-forming galaxies. Implications for chemical evolution 2014MNRAS.443..624E
    The planetary nebula IPHASXJ211420.0+434136 (Ou5): insights into common-envelope dynamical and chemical evolution 2014MNRAS.441.2799C
    The Trace of the CNO Cycle in the Ring Nebula NGC 6888 2014ApJ...785..100M
    Deep high spectral resolution spectroscopy and chemical composition of ionized nebulae 2014AN....335...73E
    Chemical Evolution and the Galactic Habitable Zone of M31 2013RMxAA..49..253C
    Analysis of chemical abundances in planetary nebulae with [WC] central stars. II. Chemical abundances and the abundance discrepancy factor 2013A&A...558A.122G
    Unveiling shocks in planetary nebulae 2013A&A...557A.121G
    NGC 2579 and the carbon and oxygen abundance gradients beyond the solar circle 2013MNRAS.433..382E
    Galactic kinematics of Planetary Nebulae with [WC] central star 2013RMxAA..49...87P
    Crucial aspects of the initial mass function. I. The statistical correlation between the total mass of an ensemble of stars and its most massive star 2013A&A...553A..31C
    Crucial aspects of the initial mass function. II. The inference of total quantities from partial information on a cluster 2013A&A...553A..32C
    Characterization of a Sample of Intermediate-type Active Galactic Nuclei. II. Host Bulge Properties and Black Hole Mass Estimates 2013ApJ...763..136B
    Characterization of a Sample of Intermediate-type AGNs. I. Spectroscopic Properties and Serendipitous Discovery of New Dual AGNs 2013ApJ...763...36B
    Excitation of emission lines by fluorescence and recombination in IC 418 2012MNRAS.426.2318E
    Spatially resolved near-infrared spectroscopy of the massive star-forming region IRAS 19410+2336 2008A&A...489..229M
    A mid-infrared study of H II regions in the Magellanic Clouds: N88 A and N160 A 2008A&A...489.1189M
    A spatial study of the mid-IR emission features in four Herbig Ae/Be stars 2009A&A...502..175B
    New insights on Stephan's Quintet: exploring the shock in three dimensions 2012A&A...539A.127I
    The distance to the C component of I Zw 18 and its star formation history. A probabilistic approach 2010A&A...509A..10J
    On emission-line spectra obtained from evolutionary synthesis models. II. Scale-relations and the estimation of mass dependences 2010A&A...517A..93V
    Modeling the ionizing spectra of H II regions: individual stars versus stellar ensembles 2010A&A...522A..49V

    Charlas relacionadas

    No se han encontrado charlas relacionadas.

    Congresos relacionados

    No se han encontrado congresos relacionados.