Astrophysical: Techniques

  • Publication
    Hot, rocky and warm, puffy super-Earths orbiting TOI-402 (HD 15337)★
    Context. The Transiting Exoplanet Survey Satellite (TESS) is revolutionising the search for planets orbiting bright and nearby stars. In sectors 3 and 4, TESS...
  • Publication
    How different are the Liège and Hamburg atlases of the solar spectrum?
    Context. The high-fidelity solar spectral atlas prepared by Delbouille et al. (Liège atlas, 1973) and the atlas by Neckel (Hamburg atlas, 1999, Sol. Phys., 184...
  • Publication
    How to infer the Sun's global magnetic field using the Hanle effect
    We present a different approach to determine the characteristics of the global magnetic field of the Sun based on the study of the Hanle signals. The Hanle...
  • Publication
    HR 10 as seen by CHEOPS and TESS: Revealing δ Scuti pulsations, granulation-like signal and hint for transients
    Context. HR 10 has only recently been identified as a binary system. Previously thought to be an A-type shell star, it appears that both components are fast...
  • Publication
    HST confirmation of the lensed quasar J03.13.
    In order to definitely prove the claim by Claeskens et al. (1996A&A...305L...9C) that J03.13 is a doubly imaged quasar, WFPC2 direct imaging and FOS...
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    HST grism spectroscopy of z ∼ 3 massive quiescent galaxies. Approaching the metamorphosis
    Tracing the emergence of the massive quiescent galaxy (QG) population requires the build-up of reliable quenched samples by distinguishing these systems from...
  • Publication
    Hubble Space Telescope-NICMOS Observations of M31'S Metal-Rich Globular Clusters and Their Surrounding Fields. I. Techniques
    Astronomers are always anxious to push their observations to the limit-basing results on objects at the detection threshold, spectral features barely stronger...
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    Hubble spectroscopy of LB-1: Comparison with B+black-hole and Be+stripped-star models
    Context. LB-1 (alias ALS 8775) has been proposed as either an X-ray dim B-type star plus black hole (B+BH) binary or a Be star plus an inflated stripped star...
  • Publication
    Hunting for binary Cepheids using the ``lucky imaging'' technique
    Detecting companions to Cepheids is difficult. In most cases the brightness of the pulsator masks the fainter secondary. Since Cepheids play a key role in...