Astrophysical: Techniques

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    Spectroscopic observations of the δ Scorpii binary during its recent periastron passage
    The bright star delta Sco has been considered a typical B0-type object for many years. Spectra of the star published prior to 1990 showed no evidence of...
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    Spectroscopic parameters for 451 stars in the HARPS GTO planet search program. Stellar [Fe/H] and the frequency of exo-Neptunes
    To understand the formation and evolution of solar-type stars in the solar neighborhood, we need to measure their stellar parameters to high accuracy. We...
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    Spectroscopic parameters for solar-type stars with moderate-to-high rotation. New parameters for ten planet hosts
    Context. Planetary studies demand precise and accurate stellar parameters as input for inferring the planetary properties. Different methods often provide...
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    Spectroscopic study of Ceres' collisional family candidates
    Context. Despite the observed signs of large impacts on the surface of Ceres, there is no confirmed collisional family associated with this dwarf planet. After...
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    Spectroscopy at the solar limb. I. Average off-limb profiles and Doppler shifts of Ca II H
    Aims: We present constraints on the thermodynamical structure of the chromosphere from ground-based observations of the Ca ii H line profile near and off the...
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    Spectroscopy at the Solar Limb: II. Are Spicules Heated to Coronal Temperatures?
    Spicules of the so-called type II were suggested to be relevant for coronal heating because of their ubiquity on the solar surface and their eventual extension...
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    Spectroscopy of Hyades L dwarf candidates★
    We present the results of photometric, astrometric, and spectroscopic follow-up of L dwarf candidates identified in the Hyades cluster by Hogan et al. We...
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    Spectroscopy of the binary TNO Mors-Somnus with the JWST and its relationship to the cold classical and plutino subpopulations observed in the DiSCo-TNO project
    Context. Trans-Neptunian objects (TNOs) are remnants of small icy bodies from planetary formation that orbit in the region beyond Neptune. Within the population...
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    SpectroTranslator: Deep-neural network algorithm for homogenising spectroscopic parameters
    Context. In modern Galactic astronomy, stellar spectroscopy plays a pivotal role in complementing large photometric and astrometric surveys and enabling deeper...