Astrophysical: Methods

  • Publication
    Atmospheric constraints on GJ 1214 b from CRIRES<SUP>+</SUP> and prospects for characterisation with ANDES
    Context. Sub-Neptune exoplanets such as GJ 1214 b provide a critical link between terrestrial and giant planets, yet atmospheric characterisation remains...
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    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 Detection of CMEs Using Synthetically-Trained Mask R-CNN
    Coronal mass ejections (CMEs) are a major driver of space weather. To assess CME geoeffectiveness, among other scientific goals, it is necessary to reliably...
  • 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...
  • Publication
    Automatic spectral classification of stellar spectra with low signal-to-noise ratio using artificial neural networks
    Context. As part of a project aimed at deriving extinction-distances for thirty-five planetary nebulae, spectra of a few thousand stars were analyzed to...
  • Publication
    Automatic Unsupervised Classification of All Sloan Digital Sky Survey Data Release 7 Galaxy Spectra
    Using the k-means cluster analysis algorithm, we carry out an unsupervised classification of all galaxy spectra in the seventh and final Sloan Digital Sky...
  • Publication
    Bar properties as a function of wavelength: a local baseline with S<SUP>4</SUP>G for high-redshift studies
    The redshift evolution of bars is an important signpost of the dynamic maturity of disc galaxies. To characterize the intrinsic evolution safe from band...