Astrofísicas: Galaxias

  • Publicación
    An evolutionary sequence of expanding hydrogen shells in galaxy discs
    Aims:Large HI shells, with diameters of hundreds of pc and expansion velocities of 10-20 km s-1 have been detected in their hundreds in the Milky Way and are...
  • Publicación
    An excess of damped Lyman α galaxies near quasi-stellar objects
    We present a sample of 33 damped Lyman α systems (DLAs) discovered in the Sloan Digital Sky Survey (SDSS) whose absorption redshifts (zabs) are within 6000 km s...
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    An extension of Herschel's method for dense and extensive catalogues. Application to the determination of solar motion
    We present a way of handling and interpreting stellar proper motions, in which the idea of substituting them by great circles, proposed by Herschel in 1783...
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    An extension of the MILES library with derived T<SUB>eff</SUB>, log g, [Fe/H], and [α/Fe]
    Extragalactic astronomy and stellar astrophysics are intrinsically related. In fact, the determination of important galaxy properties such as stellar masses...
  • Publicación
    An extreme blue nugget, UV-bright starburst at z = 3.613 with 90 per cent of Lyman continuum photon escape
    We present the discovery and analysis of J1316+2614 at z = 3.6130, a UV-bright star-forming galaxy (M UV ≃ -24.7) with large escape of Lyman continuum (LyC)...
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    An Extreme Protocluster of Luminous Dusty Starbursts in the Early Universe
    We report the identification of an extreme protocluster of galaxies in the early universe whose core (nicknamed Distant Red Core, DRC, because of its very red...
  • Publicación
    An HST/WFPC2 survey of bright young clusters in M 31. IV. Age and mass estimates
    Aims: We present the main results of an imaging survey of possible young massive clusters (YMC) in M 31 performed with the Wide Field and Planetary Camera 2...
  • Publicación
    An HST/WFPC2 survey of bright young clusters in M31. I. VdB0, a massive star cluster seen at t ≃ 25 Myr
    Aims: We introduce our imaging survey of possible young massive globular clusters in M31 performed with the Wide Field and Planetary Camera 2 (WFPC2) on the...
  • Publicación
    An hydrodynamical model of the barred galaxy NGC 5850
    We present the results of hydrodynamical model calculations of the barred galaxy NGC 5850 and compare to HI observations. The models assume a mass distribution...