Astrophysical: Methods

  • Publication
    Chemical abundances of distant extremely metal-poor unevolved stars
    Context. The old Galactic halo stars hold the fossil record of the interstellar medium chemical composition at the time of their formation. Most of the stars...
  • Publication
    Chemical characterisation of the X-shooter Spectral Library (XSL): [Mg/Fe] and [Ca/Fe] abundances
    Context. The X-shooter Spectral Library (XSL) is a large empirical stellar library used as a benchmark for the development of stellar population models. The...
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    Chemical enrichment in cosmological, smoothed particle hydrodynamics simulations
    We present an implementation of stellar evolution and chemical feedback for smoothed particle hydrodynamics simulations. We consider the timed release of...
  • Publication
    Chemical evolution of elliptical galaxies with a variable IMF. A publicly available code
    Growing evidence in recent years suggests a systematic variation of the stellar initial mass function (IMF), being top-heavy for starburst galaxies and possibly...
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    Chemoarchaeological downsizing in a hierarchical universe: impact of a top-heavy IGIMF
    We make use of a semi-analytical model of galaxy formation to investigate the origin of the observed correlation between [α/Fe] abundance ratios and stellar...
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    CHEOPS finds KELT-1b darker than expected in visible light. Discrepancy between the CHEOPS and TESS eclipse depths
    Recent studies based on photometry from the Transiting Exoplanet Survey Satellite (TESS) have suggested that the dayside of KELT-1b, a strongly irradiated brown...
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    CHEOPS precision phase curve of the Super-Earth 55 Cancri e
    Context. 55 Cnc e is a transiting super-Earth (radius 1.88 R ⊕ and mass 8 M ⊕) orbiting a G8V host star on a 17-h orbit. Spitzer observations of the planet's...
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    CHEX-MATE: A non-parametric deep learning technique to deproject and deconvolve galaxy cluster X-ray temperature profiles
    Temperature profiles of the hot galaxy cluster intracluster medium (ICM) have a complex non-linear structure that traditional parametric modelling may fail to...
  • Publication
    Choosing the proper transit detection algorithm for Eddington
    The choice of transit detection algorithm can have a strong influence on the results of any photometric exoplanet search. This paper outlines a technique by...