Exploració per tema "Galaxy: stellar content"

Ara es mostren els items 1-8 de 8

    • Monte Carlo simulations of post-common-envelope white dwarf plus main sequence binaries: comparison with the SDSS DR7 observed sample 

      Camacho Díaz, Judit; Torres Gil, Santiago; García-Berro Montilla, Enrique; Zorotovic, Monica; Schreiber, Mathias R.; Rebassa Mansergas, Alberto; Nebot Gómez-Moran, Ada; Gänsicke, Boris T. (2014-06-01)
      Article
      Accés obert
      Context. Detached white dwarf + main sequence (WD+MS) systems represent the simplest population of post-common envelope binaries (PCEBs). Since the ensemble properties of this population carries important information about ...

    • Random Forest identification of the thin disc, thick disc, and halo Gaia-DR2 white dwarf population 

      Torres Gil, Santiago; Cantero, C.; Rebassa Mansergas, Alberto; Skorobogatov, G.; Jiménez Esteban, F. M.; Solano Márquez, Enrique (Oxford University Press, 2019-03-13)
      Article
      Accés obert
      Gaia-DR2 has provided an unprecedented number of white dwarf candidates of ourGalaxy. In particular, it is estimated thatGaia-DR2 has observed nearly 400 000 ofthese objects and close to 18 000 up to 100 pc from the Sun. ...

    • The kinematics of the white dwarf population from the SDSS DR12 

      Anguiano, B.; Rebassa Mansergas, Alberto; García-Berro Montilla, Enrique; Torres Gil, Santiago; Freeman, K. C.; Zwitter, T. (2017-08-01)
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      Accés obert
      We use the Sloan Digital Sky Survey Data Release 12, which is the largest available white dwarf catalogue to date, to study the evolution of the kinematical properties of the population of white dwarfs in the Galactic disc. ...

    • 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, ...

    • The white dwarf luminosity function II. The efect of the measurement errors and other biases 

      Torres Gil, Santiago; García-Berro Montilla, Enrique; Isern Vilaboy, Jordi (Royal Astronomical Society, 2007-09)
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      Accés obert
      The disc white dwarf luminosity function is an important tool for studying the solar neighbourhood, since it allows the determination of several Galactic parameters, the most important one being the age of the Galactic ...

    • The white dwarf luminosity function – I. Statistical errors and alternatives 

      Geijo, Enrique M.; Torres Gil, Santiago; Isern Vilaboy, Jordi; García-Berro Montilla, Enrique (Royal Astronomy Society, 2006)
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      Accés obert
      The white dwarf luminosity function is an important tool for the study of the solar neighbourhood, since it allows the determination of the age of the Galactic disc. Over the years, several methods have been proposed to ...

    • White dwarfs with hydrogen-deficient atmospheres and the dark matter content of the Galaxy 

      Torres Gil, Santiago; Camacho Díaz, Judit; Isern Vilaboy, Jordi; García-Berro Montilla, Enrique (2010-02)
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      Accés obert

    • XGAPS: a sub-arcsec cross-match of galactic plane surveys 

      Scaringi, Simone; Monguió Montells, Maria; Knigge, Christian; Fratta, Matteo; Gänsicke, Boris T.; Groot, Paul J; Rebassa Mansergas, Alberto; Toloza, Odette (Oxford University Press, 2023-01-01)
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      Accés obert
      We present a sub-arcsec cross-match of Gaia Data Release 3 (DR3) against the INT Galactic Plane Surveys (IGAPS) and the United Kingdom Infrared Deep Sky Survey (UKIDSS). The resulting cross-match of Galactic Plane Surveys ...