Astrophysical: Methods

  • Publication
    Higher order Hamiltonian Monte Carlo sampling for cosmological large-scale structure analysis
    We investigate higher order symplectic integration strategies within Bayesian cosmic density field reconstruction methods. In particular, we study the fourth...
  • Publication
    Holographic imaging of crowded fields: high angular resolution imaging with excellent quality at very low cost
    We present a method for speckle holography that is optimized for crowded fields. Its two key features are an iterative improvement of the instantaneous point...
  • Publication
    Horizontal flow fields in and around a small active region. The transition period between flux emergence and decay
    Context. The solar magnetic field is responsible for all aspects of solar activity. Thus, emergence of magnetic flux at the surface is the first manifestation...
  • Publication
    HORuS transmission spectroscopy and revised planetary parameters of KELT-7 b
    We report on the high-resolution spectroscopic observations of two planetary transits of the hot Jupiter KELT-7b (M p = 1.28 ± 0.17M Jup, T eq = 2028 K)...
  • Publication
    Hot Exoplanet Atmospheres Resolved with Transit Spectroscopy (HEARTS). III. Atmospheric structure of the misaligned ultra-hot Jupiter WASP-121b
    Ultra-hot Jupiters offer interesting prospects for expanding our theories on dynamical evolution and the properties of extremely irradiated atmospheres. In this...
  • Publication
    How Far Do They Go? The Outer Structure of Galactic Dark Matter Halos
    We study the density profiles of collapsed galaxy-size dark matter halos with masses 1011 to 5×1012 Msolar focusing mostly on the halo outer regions from the...
  • Publication
    How to determine the quality of solar granulation images: The optimal window method
    An optimal window for image analysis is determined by means of information theory. The size of the window is then used as a good estimator of image quality. The...
  • Publication
    Hunting for anti-solar differentially rotating stars using the Rossby number. An application to the Kepler field
    Context. Anti-solar differential rotation profiles have been found for decades in numerical simulations of convective envelopes of solar-type stars. These...
  • Publication
    IAC-pop: Finding the Star Formation History of Resolved Galaxies
    IAC-pop is a code designed to solve the star formation history (SFH) of a complex stellar population system, like a galaxy, from the analysis of the color...