Now showing items 1-6 of 6

    • Carbon-oxygen ultra-massive white dwarfs in general relativity 

      Althaus, Leandro G.; Corsico, Alejandro H.; Camisassa, María Eugenia; Torres Gil, Santiago; Gil Pons, Pilar; Rebassa Mansergas, Alberto; Raddi, Roberto (Oxford University Press, 2023-08-01)
      Article
      Open Access
      We employ the La Plata stellar evolution code, lpcode, to compute the first set of constant rest-mass carbon–oxygen ultra-massive white dwarf evolutionary sequences for masses higher than 1.29 M¿ that fully take into account ...
    • Constraining the neutrino magnetic dipole moment from white dwarf pulsations 

      Corsico, Alejandro H.; Althaus, Leandro G.; Miller Bartolami, Marcelo M.; Kepler, S.O.; García-Berro Montilla, Enrique (2014-08-01)
      Article
      Open Access
      Pulsating white dwarf stars can be used as astrophysical laboratories to constrain the properties of weakly interacting particles. Comparing the cooling rates of these stars with the expected values from theoretical models ...
    • On the origin of high-field magnetic white dwarfs 

      García-Berro Montilla, Enrique; Torres Gil, Santiago; Lorén Aguilar, Pablo; Aznar Siguan, Gabriela; Camacho Díaz, Judit; Kulebi, Baybar; Isern Vilaboy, Jordi; Althaus, Leandro Gabriel; Corsico, Alejandro H. (Astronomical Society of the Pacific, 2013-01-01)
      Conference lecture
      Open Access
      Every two years, white dwarf researchers and enthusiasts meet to exchange their knowledge and discuss recent developments in white dwarf theory and observations. These proceedings are from the 18th European White Dwarf ...
    • The effect of 22Ne diffusion in the evolution and pulsational properties of white dwarfs with solar metallicity prgenitors 

      Camisassa, Maria E; Althaus, Leandro G.; Corsico, Alejandro H.; Vinyoles, Núria; Serenelli, Aldo M.; Isem, Jordi; Miller Bertolami, Marcelo M; García-Berro Montilla, Enrique (Institute of Physics (IOP), 2016-06-01)
      Article
      Open Access
      © 2016. The American Astronomical Society. All rights reserved. Because of the large neutron excess of 22Ne, sedimentation of this isotope occurs rapidly in the interior of white dwarfs. This process releases an additional ...
    • Updated evolutionary sequences for hydrogen-deficient white dwarfs 

      Camisassa, Maria E; Althaus, Leandro G.; Rohrmann, René D.; García-Berro Montilla, Enrique; Torres Gil, Santiago; Corsico, Alejandro H.; Wachlin, Felipe C. (Institute of Physics (IOP), 2017-04-10)
      Article
      Open Access
      We present a set of full evolutionary sequences for white dwarfs with hydrogen-deficient atmospheres. We take into account the evolutionary history of the progenitor stars, all the relevant energy sources involved in the ...
    • White dwarf evolutionary sequences for low-metallicity progenitors: The impact of third dredge-up 

      Althaus, Leandro G.; Camisassa, Maria E; Miller Bertolami, Marcelo M; Corsico, Alejandro H.; García-Berro Montilla, Enrique (2015-04-01)
      Article
      Open Access
      Context. White dwarfs are nowadays routinely used as reliable cosmochronometers, allowing several stellar populations to be dated.; Aims. We present new white dwarf evolutionary sequences for low-metallicity progenitors. ...