Journal: Monthly Notices of the Royal Astronomical Society

  • Publication
    On the outburst amplitude of the soft X-ray transients
    We find a strong correlation between the optical outburst amplitude and orbital period for the soft X-ray transient sources with orbital periods less than 1 d...
  • Publication
    On the possible triple central star system of PN SuWt 2: no ménage à trois at the heart of the Wedding Ring
    SuWt 2 is a planetary nebula consisting of a bright ring-like waist from which protrude faint extended lobes - a morphology believed to be typical of...
  • Publication
    On the post-common-envelope central star of the planetary nebula NGC 2346
    The common-envelope phase is one of the most poorly understood phases of (binary) stellar evolution, in spite of its importance in the formation of a wide range...
  • Publication
    On the presence of thermal Sunyaev-Zel'dovich induced signal in the first-year WMAP temperature maps
    Using available optical and X-ray catalogues of clusters and superclusters of galaxies, we build templates of thermal Sunyaev-Zel'dovich (tSZ) emission as they...
  • Publication
    On the radial abundance gradients of nitrogen and oxygen in the inner Galactic disc
    We present optical spectra of nine Galactic H II regions observed with the 10.4 m Gran Telescopio Canarias telescope and located at Galactocentric distances (R...
  • Publication
    On the redshift of the very high-energy gamma-ray BL Lac object S2 0109+22
    The determination of the redshift of extragalactic gamma-ray sources is of fundamental importance for the interpretation of their emission models and...
  • Publication
    On the relation between active-region lifetimes and the autocorrelation function of light curves
    Rotational modulation of stellar light curves due to dark spots encloses information on spot properties and, thus, on magnetic activity. In particular, the...
  • Publication
    On the relation between the coronal line emission and the infrared/X-ray emission in Seyfert galaxies
    The relation between the X-ray, the coronal line and the infrared (IR) emissions in a sample of the brightest known Seyfert galaxies is analysed. A close...
  • Publication
    On the relation between the Schmidt and Kennicutt-Schmidt star formation laws and its implications for numerical simulations
    When averaged over large scales, star formation in galaxies is observed to follow the empirical Kennicutt-Schmidt (KS) law for surface densities above a...