1,515 datasets found

Keywords: Chemical abundances

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  • COMBS III

    The characteristics of the stellar populations in the Galactic bulge inform and constrain the Milky Way's formation and evolution. The metal-poor population is particularly...
  • Halpha and other SFR indicators

    We present new H{alpha} photometry for the Star Formation Reference Survey (SFRS), a representative sample of star-forming galaxies in the local Universe. Combining these data...
  • The GALAH+ Survey DR3

    The ensemble of chemical element abundance measurements for stars, along with precision distances and orbit properties, provides high-dimensional data to study the evolution of...
  • GALAH survey. Galactic disc with open clusters

    Open clusters are unique tracers of the history of our own Galaxy's disc. According to our membership analysis based on Gaia astrometry, out of the 226 potential clusters...
  • Evolutionary traits for stellar phylogeny

    Since chemical abundances are inherited between generations of stars, we use them to trace the evolutionary history of our Galaxy. We present a robust methodology for creating a...
  • HII region emission-line fluxes analysis

    Studies of gas-phase radial metallicity profiles in spirals published in the last decade have diminished the importance of galactic bars as agents that mix and flatten the...
  • {lambda} Bootis stars: the Southern Survey II.

    The {lambda} Boo stars are chemically peculiar A-type stars whose abundance anomalies are associated with the accretion of metal-poor material. We searched for {lambda} Boo...
  • Abundances of 42 Pisces-Eridanus stream stars

    Recently, a new cylindrical-shaped stream of stars, up to 700pc long, was discovered hiding in the Galactic disk using kinematic data enabled by the Gaia mission. This curious...
  • Velocity gradient and galaxy properties correlation

    Galaxy properties are known to correlate most tightly with the galaxy effective stellar velocity dispersion {sigma}e. Here, we look for additional trends at fixed {sigma}e using...
  • Planet-hosting stars chemical compositions

    We present a line-by-line differential analysis of a sample of 16 planet-hosting stars and 68 comparison stars using high-resolution, high signal-to-noise ratio spectra gathered...
  • Luminosities of 34 slowly pulsating B stars

    We provide three statistical model prescriptions for the bolometric corrections appropriate for B-type stars as a function of (i) T_eff_, (ii) T_eff_ and logg, and (iii) T_eff_,...
  • MEGARA-GTC stellar spectral library I

    MEGARA (Multi Espectrografo en GTC de Alta Resolucion para Astronomia) is an optical (3650-9750{AA}), fibre-fed, medium-high spectral resolution (R=6000, 12000 and 20000)...
  • SI abundances of 8 A-B stars

    A comprehensive model atom was developed for Si I-II-III using the most up-to-date atomic data available so far. Based on non-local thermodynamic equilibrium (NLTE) line...
  • G0-G3 main-sequence stars with V<15 II

    We present the spectroscopic analysis at intermediate resolution of a new sample of 146 Sun-like stars (of spectral types G0-G3 and luminosity class V), which complements the...
  • Milky Way halo stars ages and kinematics

    We exploit the [Mg/Mn]-[Al/Fe] chemical abundance plane to help identify nearby halo stars in the 14th data release from the APOGEE survey that have been accreted on to the...
  • The KLEVER Survey: metallicity maps and gradients

    We present near-infrared observations of 42 gravitationally lensed galaxies obtained in the framework of the KMOS Lensed Emission Lines and VElocity Review (KLEVER) Survey, a...
  • The Pristine survey. IX.

    A chemo-dynamical analysis of 115 metal-poor candidate stars selected from the narrow-band Pristine photometric survey is presented based on CFHT high-resolution ESPaDOnS...
  • CALIFA galaxies hosting an AGN

    We study the presence of optically-selected Active Galactic Nuclei (AGNs) within a sample of 867 galaxies extracted from the extended Calar-Alto Legacy Integral Field...
  • Abundances of Gaia DR2 wide binaries

    One of the high-level goals of Galactic archaeology is chemical tagging of stars across the Milky Way to piece together its assembly history. For this to work, stars born...
  • NGC752 abundances from IR spectra

    We present a detailed near-infrared chemical abundance analysis of 10 red giant members of the Galactic open cluster NGC 752. High-resolution (R~45000) near-infrared spectral...
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