Tipo de publicación: Sin árbitro

  • Publicación
    An Update of the Primordial Helium Abundance
    Three of the best determinations of the primordial helium abundance (Yp) are those obtained from low metallicity HII regions by Aver, Olive, Porter, & Skillman...
  • Publicación
    An Update on the Development of ASPIRED
    We are reporting the updates in version 0.2.0 of the Automated SpectroPhotometric REDuction (ASPIRED) pipeline, designed for common use on different instruments...
  • Publicación
    An upper limit to the Beryllium abundance in the population 2 star HD 140283 from a high resoluion IUE spectrum
    An IUE archive spectrum of HD 140283 has been analyzed in the region of the 3131 Å 9Be II resonance doublet. Close comparison of the observed and synthetic...
  • Publicación
    An UXor among FUors: extinction-related brightness variations of the young eruptive star V582 Aur
    The early evolution of Sun-like stars may be interspersed by energetic FU Orionis (FUor) type accretion outbursts. We analysed eight years of photometric and...
  • Publicación
    An X-ray study of the binary system IGR J17503-2636
    We study the temporal and spectral characteristics of the X-ray emission of the hard X-ray transient binary system IGR~J17503--2636 to characterize its...
  • Publicación
    An X-ray survey of extragalactic radio jets with Chandra
    We are performing a survey of a sample of 17 radio jets with Chandra and HST, with the aim of finding their X-ray and optical counterparts. In this paper, we...
  • Publicación
    An X-ray view of the Nature of LINERs
    Not Available
  • Publicación
    An XMM-Newton view of a small sample of Seyfert, 1 Galaxies
    We present a detailed analysis of all the X-ray data taken by the XMM-Newton satellite of a small sample of five Seyfert 1 galaxies: ESO 359-G19, HE 1143-1810...
  • Publicación
    Análisis sismológico de las estrellas pulsantes tipo Delta Scuti del cúmulo de las Pléyades
    The seismological analysis of Delta Scuti stars give us precise information on the stellar structure in intermediate mass stars, that is between 1.5 and 2.5...