Publication type: Refereed

  • Publication
    An ultra-massive white dwarf with a mixed hydrogen-carbon atmosphere as a likely merger remnant
    White dwarfs are dense, cooling stellar embers consisting mostly of carbon and oxygen 1, or oxygen and neon (with a few per cent carbon) at higher initial...
  • Publication
    An ultra-short period rocky super-Earth orbiting the G2-star HD 80653★
    Ultra-short period (USP) planets are a class of exoplanets with periods shorter than one day. The origin of this sub-population of planets is still unclear...
  • Publication
    An ultra-short-period super-Earth with an extremely high density and an outer companion
    We present the discovery and characterization of a new multi-planetary system around the Sun-like star K2-360 (EPIC 201595106). K2-360 was first identified in...
  • Publication
    An ultra-short-period transiting super-Earth orbiting the M3 dwarf TOI-1685
    Dynamical histories of planetary systems, as well as the atmospheric evolution of highly irradiated planets, can be studied by characterizing the ultra-short...
  • Publication
    An ultrahot Neptune in the Neptune desert
    About 1 out of 200 Sun-like stars has a planet with an orbital period shorter than one day: an ultrashort-period planet 1,2. All of the previously known...
  • Publication
    An ultraviolet spectral study of fullerene-rich planetary nebulae
    Several planetary nebulae (PNe) have been found to contain both polycyclic aromatic hydrocarbon (PAH-like) species and fullerenes (C 60) distinguished by their...
  • Publication
    An Umbral Brightening Associated with a Two-Ribbon Flare
    We report an unusual case of a two-ribbon flare associated with an umbral brightening in a magnetically unipolar region.
  • Publication
    An uncombed inversion of multiwavelength observations reproducing the net circular polarization in a sunspot's penumbra
    Context. The penumbra of sunspots has a complex magnetic field topology whose three-dimensional organization remains unclear after more than a century of...
  • Publication
    An underlying clock in the extreme flip-flop state transitions of the black hole transient Swift J1658.2-4242
    Aims: Flip-flops are top-hat-like X-ray flux variations, which have been observed in some transient accreting black hole binary systems, and feature...