Astrophysical: Techniques

  • Publication
    Inversions of synthetic umbral flashes: a selection of wavelength sampling
    Context. Imaging spectrographs are popular instruments used to obtain solar data. They record quasi-monochromatic images at selected wavelength positions. By...
  • Publication
    Inversions of synthetic umbral flashes: Effects of scanning time on the inferred atmospheres
    Context. The use of instruments that record narrowband images at selected wavelengths is a common approach in solar observations. They allow scanning of a...
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    Investigating the architecture and internal structure of the TOI-561 system planets with CHEOPS, HARPS-N, and TESS
    We present a precise characterization of the TOI-561 planetary system obtained by combining previously published data with TESS and CHEOPS photometry, and a new...
  • Publication
    Investigating the visible phase-curve variability of 55 Cnc e★
    Context. 55 Cnc e is an ultra-short period super-Earth transiting a Sun-like star. Previous observations in the optical range detected a time-variable flux...
  • Publication
    Ionized calcium in the atmospheres of two ultra-hot exoplanets WASP-33b and KELT-9b
    Ultra-hot Jupiters are emerging as a new class of exoplanets. Studying their chemical compositions and temperature structures will improve our understanding of...
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    Ionized gas kinematics of galaxies in the CALIFA survey. I. Velocity fields, kinematic parameters of the dominant component, and presence of kinematically distinct gaseous systems
    Context. Ionized gas kinematics provide important clues to the dynamical structure of galaxies and hold constraints to the processes driving their evolution...
  • Publication
    Irradiation origin and stability of CO on trans-Neptunian objects: Laboratory constraints and observational evidence from JWST/DiSCo-TNOs
    Context. The James Webb Space Telescope large program DiSCo-TNOs has recently shown that CO 2 ice is ubiquitous on 54 mediumsize trans-Neptunian objects (TNOs)...
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    Is binning always sinning? The impact of time-averaging for exoplanet phase curves
    We explore how finite integration time or temporal binning can affect the analysis of exoplanet phase curves. We provide analytical formulae to account for this...
  • Publication
    Is the activity level of HD 80606 influenced by its eccentric planet?
    Aims: Several studies suggest that the activity level of a planet-host star can be influenced by the presence of a close-by orbiting planet. Moreover, the...