Publication type: Refereed

  • Publication
    Granulation in K-type dwarf stars. I. Spectroscopic observations
    Aims: We seek to detect and quantify the effects of surface convection (granulation) on the line spectra of K-dwarfs as a first step towards a rigorous testing...
  • Publication
    Granulation in K-type dwarf stars. II. Hydrodynamic simulations and 3D spectrum synthesis
    Aims: To explore the impact of surface inhomogeneities on stellar spectra, granulation models need to be computed. Ideally, the most fundamental characteristics...
  • Publication
    Granulation in Red Giants: Observations by the Kepler Mission and Three-dimensional Convection Simulations
    The granulation pattern that we observe on the surface of the Sun is due to hot plasma rising to the photosphere where it cools down and descends back into the...
  • Publication
    Granulation Signatures in the Spectrum of the Very Metal-poor Red Giant HD 122563
    A very high resolution (R = λ/Δλ = 200, 000), high signal-to-noise ratio (S/N ~= 340) blue-green spectrum of the very metal-poor ([Fe/H] ~= -2.6) red giant star...
  • Publication
    Gravitational Bar and Spiral Arm Torques from Ks-band Observations and Implications for the Pattern Speeds
    We have obtained deep near-infrared Ks-band William Herschel Telescope observations of a sample of 15 nearby spiral galaxies having a range of Hubble types and...
  • Publication
    Gravitational Lens Candidates in the HST Survey of BL Lac Objects
    Not Available
  • Publication
    Gravitational Lens Models Based on Submillimeter Array Imaging of Herschel-selected Strongly Lensed Sub-millimeter Galaxies at z > 1.5
    Strong gravitational lenses are now being routinely discovered in wide-field surveys at (sub-)millimeter wavelengths. We present Submillimeter Array (SMA) high...
  • Publication
    Gravitational lensing detection of an extremely dense environment around a galaxy cluster
    Galaxy clusters form at the highest-density nodes of the cosmic web1,2. The clustering of dark matter halos hosting these galaxy clusters is enhanced relative...
  • Publication
    Gravitational Radiation and Steady-State Distribution of Binary Orbits - Application to High-Mass Binary Pulsars
    By assuming the existence of a quasi-steady state of binary orbits of collapsed objects, a simple theory, relating the initial input distribution of semimajor...