415 datasets found

Keywords: stellar ages

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  • Rotation of wide binaries

    Gyrochronology allows the derivation of ages of late-type main sequence stars from their rotation periods and a mass proxy such as color. It has been explored in open clusters,...
  • ~1 million RGB and RC stars masses and ages

    We construct a catalogue of stellar masses and ages for 696680 red giant branch (RGB) stars, 180436 primary red clump (RC) stars, and 120907 secondary RC stars selected from the...
  • APOGEE red-giant stars spectroscopic age estimates

    We tabulate spectroscopic stellar age estimates for 178825 red-giant stars observed by the APOGEE survey (Majewski et al., 2017AJ....154...94M, Cat. III/284) with a median...
  • New white dwarf-open cluster associations

    Open clusters (OCs) provide homogeneous samples of white dwarfs (WDs) with known distances, extinctions, and total ages. The unprecedented astrometric precision of Gaia allows...
  • Cluster ages in Sco-Cen

    We reconstructed the star formation history of the Sco-Cen OB association using a novel high-resolution age map of the region. We developed an approach to produce robust ages...
  • DES supernova host galaxies fits

    Type Ia supernovae (SNe Ia) are useful distance indicators in cosmology, provided their luminosity is standardized by applying empirical corrections based on light-curve...
  • Contact tracing of binary stars

    Stellar mergers are responsible for a wide variety of phenomena such as rejuvenated blue stragglers, highly magnetised stars, spectacular transients, iconic nebulae, and stars...
  • Evaporation ages of young star clusters

    The ages of young star clusters are fundamental clocks to constrain the formation and evolution of pre-main-sequence stars and their protoplanetary disks and exoplanets....
  • Evidence of high redshift Galactic alpha-poor disc

    The presence of [alpha/Fe]-[Fe/H] bi-modality in the Milky Way disc has animated the Galactic archaeology community since more than two decades. Our goal is to investigate the...
  • Effect on rotation for red giant ages

    Galactic archaeology largely relies on precise ages of distant evolved stars in the Milky Way. Nowadays, asteroseismology can deliver ages for many red giants observed with...
  • Young low-mass stars population in Trumpler 14

    Massive star-forming regions are thought to be the most common birth environments in the Galaxy and the only birth places of very massive stars. Their presence in the stellar...
  • Asteroseismically calibrated ages for APOGEE DR17

    The formation history and evolution of the Milky Way through cosmological time is a complex field of research requiring the sampling of highly accurate stellar ages for all...
  • Solution CMD ofr nearby stars

    The study of the Milky Way is living a golden era thanks to the enormous high-quality datasets delivered by Gaia, and space asteroseismic and ground-based spectroscopic surveys....
  • Red giants abundances and asteroseismic ages

    Given the massive spectroscopic surveys and the Gaia mission, the Milky Way has turned into a unique laboratory to be explored using abundance ratios that show a strong...
  • Resonant sub-Neptunes are puffier

    A systematic, population-level discrepancy exists between the densities of exoplanets whose masses have been measured with transit timing variations (TTVs) versus those measured...
  • [Y/Mg] chemical clock in the Galactic disk

    Stellar ages are an important parameter in studies of the chemical evolution of the Galaxy. To better estimate these ages, various methods complementary to the conventional...
  • Mass-Metallicity Relation of quiescent galaxies

    We investigate the stellar Mass-Metallicity Relation (MZR) using a sample of 637 quiescent galaxies with 10.4<=log(M/M_{sun}_)<11.7 selected from the LEGA-C survey at...
  • RGB stars from the APO-K2 catalogue

    By adopting the recently empirically derived dependence of {alpha}-elements on [alpha/Fe] instead of the conventionally applied uniform one, we tested the agreement between...
  • Gaia-Sausage-Enceladus abundances

    The Gaia-Sausage-Enceladus merger was a major event in the history of the Milky Way. Debris from this merger has been extensively studied with full kinematic data from the Gaia...
  • Disk stream candidate members

    We studied 12 disk streams found in a 250^3^pc^3^ volume in the solar neighborhood, which we define as coeval and comoving stellar structures with aspect ratios greater than...
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