El Grup d' Astronomía i Astrofísica de la Universitat Politècnica de Catalunya (UPC) reuneix a un nombre reduit de persones interessades en una àmplia gama de temes de la Astronomía moderna. La història del grup va començar l'any 1995, just desprès de que alguns astrofísics perteneixents a dos departaments de física diferents (el departament de Física Aplicada, i el de Física i Enginyería Nuclear.) ajuntaran esforços per tal de crear un grup d'investigació competitiu en ciències de l'espai dins de la UPC. En la actualitat el GAA compta amb 7 investigadors permanents, a més de 6 estudiants doctorats i 11 estudiants postgraduats buscant aconseguir el seu doctorat. L'àrea principal d'actividad de la investigació del GAA pot ser classificada com Astrofísica Teórica. El tema és molt ampli, incloent-hi simulacions de computadora de les últimes etapes de la evolució estelar (l'enfriamient de les nanes blanques, AGBs, explosions de novas i supernovas, explosions de raigs X i física dels objectes compactes), estructura y dinàmica dels jets relacionats amb el PN i els objectes de l'Herbig-Haro i Cosmología. Alguns membres també estàn interessats en altres areas, incloent-hi estudis del comportament cinemàtic de estrelles en la vecindad Solar així com el diseny de la instrumentació que serà utilitzada per els satèlits científics.

Pàgina web del grup de recerca

Recent Submissions

  • Level structure of the Tz=-1 nucleus Ar 34 and its relevance for nucleosynthesis in ONe novae 

    José Pont, Jordi (American Physical Society, 2021-03-08)
    Article
    Open Access
    The 24Mg+12C fusion reaction was used to perform a detailed ¿-ray spectroscopy study of the astrophysically important nucleus 34Ar. In particular, an experimental setup, coupling the advanced ¿-ray tracking array GRETINA ...
  • Enquesta sobre la situació del col·lectiu del professorat associat a la Universitat Politècnica de Catalunya 

    Cornadó Bardón, Còssima; Haurie Ibarra, Laia; Mir Teixidor, Enrique; Morros Rubió, Josep Ramon; Mujica Delgado, Luis Eduardo; Olmedo Torre, Noelia; Peña Carrera, Marta; Sala Cladellas, Glòria (2021-03-15)
    External research report
    Open Access
    La utilització de la figura del professorat associat per part de les universitats públiques a Catalunya en molts casos està lluny de l’esperit d’aquesta figura en la legislació (especialista de reconeguda competència i amb ...
  • Self-gravitating barotropic equilibrium configurations of rotating bodies with smoothed particle hydrodynamics 

    García Senz, Domingo; Cabezón Gómez, Rubén Martín; Blanco Iglesias, José Miguel; Lorén Aguilar, Pablo (EDP Sciences, 2020-05-14)
    Article
    Open Access
  • The White Dwarf Binary Pathways Survey. V. The Gaia White Dwarf plus AFGK Binary Sample and the Identification of 23 Close Binaries 

    Ren, J. J.; Raddi, Roberto; Rebassa Mansergas, Alberto; Parsons, Steven G.; Irawati, Puji; Schreiber, Mathias R.; Gänsicke, Boris T.; Torres Gil, Santiago (Institute of Physics (IOP), 2020-12-10)
    Article
    Open Access
    Close white dwarf binaries consisting of a white dwarf and an A-, F-, G-, or K-type main-sequence star, henceforth close WD+AFGK binaries, are ideal systems to understand the nature of type Ia supernovae progenitors and ...
  • Simulations of stellar winds from X-ray bursts: Characterization of solutions and observable variables. 

    Herrera, Yago; Sala Cladellas, Glòria; José Pont, Jordi (EDP Sciences, 2020-06-19)
    Article
    Open Access
    Context. Photospheric radius expansion during X-ray bursts can be used to measure neutron star radii and help constrain the equation of state of neutron star matter. Understanding the stellar wind dynamics is important for ...
  • An extremely hot white dwarf with a rapidly rotating K-type subgiant companion: UCAC2 46706450 

    Werner, Klaus; Reindl, Nicole; Löbling, Lisa; Pelisoli, Ingrid; Schaffenroth, Veronika; Rebassa Mansergas, Alberto; Irawati, Puji; Ren, Juanjuan (EDP Sciences, 2020-10-01)
    Article
    Open Access
    Covenantee:   Eberhard Karls Universität Tübingen / Universität Potsdam / Institut d'Estudis Espacials de Catalunya / National Astronomical Research Institute of Thailand / Zhongguo ke xue yuan
    The subgiant UCAC2 46706450 is a late-type star with an ultraviolet (UV) excess. It was considered as a candidate to establish a sample of stars of spectral type F, G, and K with white dwarf (WD) companions that could be ...
  • Spectroscopy of P 30 and the abundance of Si 29 in presolar grains 

    Lotay, G.; Doherty, D.T.; Seweryniak, D.; Janssens, R.V.F.; José Pont, Jordi; Woods, Phil J. (American Physical Society, 2020-09-22)
    Article
    Open Access
    Covenantee:   University of Surrey / Argonne National Laboratory / University of North Carolina at Chapel Hill / Duke University / Institut d'Estudis Espacials de Catalunya / University of Massachusetts Lowell / University of Edinburgh
    The astrophysical 29Si(p,¿) reaction is expected to play a key role in determining the final 29Si yields ejected in nova explosions. Such yields are used to accurately identify the stellar origins of meteoritic stardust ...
  • The Compact binary HIgh CAdence Survey (CHiCaS): An overview 

    Pala, A. F.; Ederoclite, A; Gänsicke, Boris T.; Abril, J; Raddi, Roberto; Vázquez Ramió, H; Rebassa Mansergas, Alberto (2020-09-01)
    Article
    Restricted access - publisher's policy
    Covenantee:   European Southern Observatory / University of Warwick / Universidade de São Paulo / European Southern Observatory Chile / Centro de Estudios de Física del Cosmos de Aragón
    Cataclysmic Variables (CVs) are binaries in which a white dwarf accretes from a low-mass companion star. CVs are the best-suited laboratories to test our understanding of the evolution of compact, interacting binaries as ...
  • Gaia white dwarfs within 40 pc – I. Spectroscopic observations of new candidates 

    Tremblay, P. E.; Hollands, M.; Izquierdo Tugas, Pere; Gänsicke, Boris T.; Koester, D.; Brown, W J; Hermes, J. J.; Kleinman, Scot J.; Manser, C. J.; Marsh, Thomas R.; Schreiber, Mathias R.; Silvotti, R.; Rebassa Mansergas, Alberto; Raddi, Roberto (Oxford University Press, 2020-09-01)
    Article
    Open Access
    Covenantee:   University of Warwick / Universidad de La Laguna / Universitat Christian Albrecht de Kiel
    We present a spectroscopic survey of 230 white dwarf candidates within 40 pc of the Sun from the William Herschel Telescope and Gran Telescopio Canarias. All candidates were selected from Gaia Data Release 2 (DR2) and in ...
  • Search for nova presolar grains: gamma-ray Spectroscopy of Ar-34 and its relevance for the astrophysical Cl-33(p,gamma) reaction 

    José Pont, Jordi (American Institute of Physics (AIP), 2020-06-26)
    Article
    Open Access
    Covenantee:   University of Surrey / Argonne National Laboratory / Simon Fraser University
    The discovery of presolar grains in primitive meteorites has initiated a new era of research in the study of stellar nucleosynthesis. However, the accurate classification of presolar grains as being of specific stellar ...
  • Low-energy( 23)Al beta-delayed proton decay and Na-22 destruction in novae 

    Perez Loureiro, David; Wrede, Christopher; José Pont, Jordi (American Physical Society (APS), 2020-05-19)
    Article
    Open Access
    Covenantee:   Michigan State University / Universiṭah ha-ʻIvrit bi-Yerushalayim / University of Tennessee
    The radionuclide22Na is a target of¿-ray astronomy searches, predicted to be produced during thermonuclearrunaways driving classical novae. The22Na(p,¿)23Mg reaction is the main destruction channel of22Na during anova, ...
  • Full orbital solution for the binary system in the northern Galactic disc microlensing event Gaia16aye 

    Rebassa Mansergas, Alberto (EDP Sciences, 2020-01-21)
    Article
    Open Access
    Covenantee:   Obserwatorium Astronomiczne Uniwersytetu Warszawskiego / Instytut Astronomiczny Uniwersytetu Wrocławskiego / Instituto de Astrofìsica de Canarias
    Gaia16aye was a binary microlensing event discovered in the direction towards the northern Galactic disc and was one of the first microlensing events detected and alerted to by the Gaia space mission. Its light curve ...

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