Publications

  • Weighing stars from birth to death: mass determination methods across the HRD

    The mass of a star is the most fundamental parameter for its structure, evolution, and final fate. It is particularly important for any kind of stellar archaeology and characterization of exoplanets. There exist a variety of methods in astronomy to estimate or determine it. In this review we present a significant number of such methods, beginning

    Serenelli, Aldo et al.

    Advertised on:

    12
    2021
  • A Case against a Significant Detection of Precession in the Galactic Warp

    Recent studies of warp kinematics using Gaia DR2 data have produced detections of warp precession for the first time, which greatly exceeds theoretical predictions of models. However, this detection assumes a warp model derived for a young population (few tens of megayears) to fit velocities of an average older stellar population of the thin disk

    Chrobáková, Ž. et al.

    Advertised on:

    5
    2021
  • A comparison between X-shooter spectra and PHOENIX models across the HR-diagram

    Aims: The path towards robust near-infrared extensions of stellar population models involves the confrontation between empirical and synthetic stellar spectral libraries across the wavelength ranges of photospheric emission. Indeed, the theory of stellar emission enters all population synthesis models, even when this is only implicit in the

    Lançon, A. et al.

    Advertised on:

    5
    2021
  • A diffuse tidal dwarf galaxy destined to fade out as a "dark galaxy"

    We have explored the properties of a peculiar object detected in deep optical imaging and located at the tip of an H I tail emerging from Hickson Compact Group 16. Using multiband photometry from infrared to ultraviolet, we were able to constrain its stellar age to 58‒9+22 Myr with a rather high metallicity of [Fe/H] = ‒0.16‒0.41+0.43 for its

    Román, Javier et al.

    Advertised on:

    5
    2021
  • A KMOS survey of the nuclear disk of the Milky Way. I. Survey design and metallicities

    Context. In the central few degrees of the bulge of the Milky Way there is a flattened structure of gas, dust, and stars, known as the central molecular zone, that is similar to nuclear disks in other galaxies. As a result of extreme foreground extinction, we possess only sparse information about the (mostly old) stellar population of the nuclear

    Fritz, T. K. et al.

    Advertised on:

    5
    2021