Enviaments recents

  • Observational constraints on the age-metallicity relation from white dwarf-Main sequence binaries 

    Rebassa Mansergas, Alberto; García-Berro Montilla, Enrique; Torres Gil, Santiago; Anguiano, B.; Manser, C. J.; Gänsicke, Boris T.; Liu, X. (Astronomical Society of the Pacific Conference Series (ASP), 2017)
    Article
    Accés obert
    The age-metallicity relation (AMR) is a fundamental observational property to understand how the Galactic disc formed and evolved chemically in time. However, there is not yet a consensus on the observed properties of the ...
  • Science with e-ASTROGAM: a space mission for MeV–GeV gamma-ray astrophysics 

    De Angelis, Alejandro; Tatischeff, Vincent; Grenier, Isabelle A.; José Pont, Jordi (2018-08-01)
    Article
    Accés obert
    e-ASTROGAM (‘enhanced ASTROGAM’) is a breakthrough Observatory space mission, with a detector composed by a Silicon tracker, a calorimeter, and an anticoincidence system, dedicated to the study of the non-thermal Universe ...
  • Surface and core detonations in rotating white dwarfs 

    García Senz, Domingo; Cabezón Gómez, Rubén Martín; Domínguez, I. (Institute of Physics (IOP), 2018-07-20)
    Article
    Accés obert
    The feasibility of the double detonation mechanism—surface helium detonation followed by complete carbon detonation of the core—in a rotating white dwarf with mass ;1Me is studied using three-dimensional hydrodynamic ...
  • White dwarf-main sequence binaries from LAMOST: the DR5 catalogue 

    Ren, J. J.; Rebassa Mansergas, Alberto; Parsons, S. G.; Liu, X. W; Luo, Jun; Kong, X; Zhang, C. (Oxford University Press, 2018-07-01)
    Article
    Accés obert
    We present the data release (DR) 5 catalogue of white dwarf–main sequence (WDMS) binaries from the Large sky Area Multi-Object fibre Spectroscopic Telescope (LAMOST). The catalogue contains 876 WDMS binaries, of which 757 ...
  • The population of single and binary white dwarfs of the Galactic bulge 

    Torres Gil, Santiago; García-Berro Montilla, Enrique; Cojocaru, Elena Ruxandra; Calamida, Annalisa (Oxford University Press, 2018-05-01)
    Article
    Accés obert
    Recent Hubble Space Telescope observations have unveiled the white dwarf cooling sequence of the Galactic bulge. Although the degenerate sequence can be well fitted employing the most up-to-date theoretical cooling sequences, ...
  • Axions and the luminosity function of white dwarfs : the thin and thick discs, and the halo 

    Isern Vilaboy, Jordi; García-Berro Montilla, Enrique; Torres Gil, Santiago; Cojocaru, Elena Ruxandra; Catalán, S (Oxford University Press, 2018-08-01)
    Article
    Accés obert
    The evolution of white dwarfs is a simple gravothermal process of cooling. Since the shape of their luminosity function is sensitive to the characteristic cooling time, it is possible to use its slope to test the existence ...
  • An efficient iterative method for computing deflections of Bernoulli–Euler–von Karman beams on a nonlinear elastic foundation 

    Ahmad, Fayyaz; Jang, Taek Soo; Carrasco, Juan A.; Shafiq Ur, Rehman; Ali, Zulfiqar; Ali, Nukhaze (2018-10-01)
    Article
    Accés restringit per política de l'editorial
    An efficient iterative method is developed for the static analysis of large deflections of an infinite beam with variable cross-section resting on a nonlinear foundation. A pseudo spring constant is added and explicit ...
  • Three-dimensional simulations of the interaction between the nova ejecta, accretion disk, and companion star 

    Figueira, Joana; José Pont, Jordi; García-Berro Montilla, Enrique; García Senz, Domingo (EDP Sciences, 2018-05-01)
    Article
    Accés obert
  • Peering into the dark side: Magnesium lines establish a massive neutron star in PSR J2215+5135 

    Linares Alegret, Manuel; Shahbaz, T.; Casares, Jorge (Institute of Physics (IOP), 2018-05-20)
    Article
    Accés obert
    New millisecond pulsars (MSPs) in compact binaries provide a good opportunity to search for the most massive neutron stars. Their main-sequence companion stars are often strongly irradiated by the pulsar, displacing the ...
  • On presolar stardust grains from CO classical novae 

    Iliadis, Christian; Downen, Lori N.; José Pont, Jordi; Nittler, Larry R.; Starrfield, Sumner (Institute of Physics (IOP), 2018-03-10)
    Article
    Accés obert
    About 30%–40% of classical novae produce dust 20–100 days after the outburst, but no presolar stardust grains from classical novae have been unambiguously identified yet. Although several studies claimed a nova paternity ...
  • Breaking the habit: the peculiar 2016 eruption of the unique recurrent nova M31N 2008-12a 

    Henze, Martin; Darnley, Matt J.; Williams, Steven Charles; José Pont, Jordi (2018-04-10)
    Article
    Accés obert
  • Using large spectroscopic surveys to test the double degenerate model for Type Ia supernovae 

    Breedt, E.; Steeghs, Dani; Marsh, T. R.; Gentile Fusillo, N. P.; Tremblay, P. E.; Green, M.; De Pasquale, S.; Hermes, J. J.; Gänsicke, Boris T.; Parsons, S. G.; Bours, M. C. P.; Longa Peña, P.; Rebassa Mansergas, Alberto (2017-02-20)
    Article
    Accés obert
    An observational constraint on the contribution of double degenerates to Type Ia supernovae requires multiple radial velocity measurements of ideally thousands of white dwarfs. This is because only a small fraction of the ...

Mostra'n més