Astrophysical: Methods

  • Publication
    Asymmetrical tidal tails of open star clusters: stars crossing their cluster's práh<SUP>†</SUP> challenge Newtonian gravitation
    After their birth a significant fraction of all stars pass through the tidal threshold (práh) of their cluster of origin into the classical tidal tails. The...
  • Publication
    Asymmetries of the Stokes V profiles observed by HINODE SOT/SP in the quiet Sun
    Aims: A recent analysis of polarization measurements of HINODE SOT/SP in the quiet Sun pointed out very complex shapes of Stokes V profiles. Here we present the...
  • Publication
    Atmospheric and seeing forecast: WRF model validation with in situ measurements at ORM
    We present a comparison between in situ measurements and forecasted data at the Observatorio del Roque de Los Muchachos. Forecasting is obtained with the...
  • Publication
    Atmospheric characterization of the ultra-hot Jupiter MASCARA-2b/KELT-20b. Detection of Ca II, Fe II, Na I, and the Balmer series of H (Hα, Hβ, and Hγ) with high-dispersion transit spectroscopy (Corrigendum)
  • Publication
    Atmospheric characterization of the ultra-hot Jupiter MASCARA-2b/KELT-20b. Detection of CaII, FeII, NaI, and the Balmer series of H (Hα, Hβ, and Hγ) with high-dispersion transit spectroscopy
    Ultra-hot Jupiters orbit very close to their host star and consequently receive strong irradiation, causing their atmospheric chemistry to be different from the...
  • Publication
    Atmospheric scintillation noise in ground-based exoplanet photometry
    Atmospheric scintillation caused by optical turbulence in the Earth's atmosphere can be the dominant source of noise in ground-based photometric observations of...
  • Publication
    Automated analysis of stellar spectra
    Classical model-atmosphere analyses of stellar spectra usually begin by measuring equivalent widths, and then proceed into a loop in which 1) model spectra are...
  • Publication
    Automated Unsupervised Classification of the Sloan Digital Sky Survey Stellar Spectra using k-means Clustering
    Large spectroscopic surveys require automated methods of analysis. This paper explores the use of k-means clustering as a tool for automated unsupervised...
  • Publication
    Automatic model-based telluric correction for the ESPRESSO data reduction software. Model description and application to radial velocity computation
    Context. Ground-based high-resolution spectrographs are key instruments for several astrophysical domains, such as exoplanet studies. Unfortunately, the...