0000000001315768

AUTHOR

R. Smiljanic

showing 3 related works from this author

The Gaia-ESO Public Spectroscopic Survey

2012

The Gaia-ESO Public Spectroscopic Survey has begun and will obtain high quality spectroscopy of some 100000 Milky Way stars, in the field and in open clusters, down to magnitude 19, systematically covering all the major components of the Milky Way. This survey will provide the first homogeneous overview of the distributions of kinematics and chemical element abundances in the Galaxy. The motivation, organisation and implementation of the Gaia-ESO Survey are described, emphasising the complementarity with the ESA Gaia mission. Spectra from the very first observing run of the survey are presented.

spectroscopy stars kinematics abundancesSettore FIS/05 - Astronomia E AstrofisicaAstrophysics::Instrumentation and Methods for AstrophysicsAstrophysics::Solar and Stellar AstrophysicsAstrophysics::Earth and Planetary AstrophysicsAstrophysics::Cosmology and Extragalactic AstrophysicsAstrophysics::Galaxy Astrophysics
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The Gaia-ESO Survey: Extracting diffuse interstellar bands from cool star spectra DIB-based interstellar medium line-of-sight structures at the kpc s…

2014

We study how diffuse interstellar bands (DIBs) measured toward distance-distributed target stars can be used to locate dense interstellar (IS) clouds in the Galaxy and probe a line-of-sight (LOS) kinematical structure, a potential useful tool when gaseous absorption lines are saturated or not available in the spectral range. Cool target stars are numerous enough for this purpose. We have devised automated DIB fitting methods appropriate to cool star spectra and multiple IS components. The data is fitted with a combination of a synthetic stellar spectrum, a synthetic telluric transmission, and empirical DIB profiles. In parallel, stellar distances and extinctions are estimated self-consisten…

Milky WayFOS: Physical sciencesAstrophysicsAstrophysics::Cosmology and Extragalactic Astrophysics01 natural sciencesSpectral line0103 physical sciencesAstronomy Astrophysics and CosmologyISM: general; dust extinction; ISM: lines and bandsEmission spectrum010303 astronomy & astrophysicsGalaxy: generalgeneral [Galaxy]Dust extinctionAstrophysics::Galaxy AstrophysicsISM: generalPhysicsLine-of-sightSpiral galaxygeneral [ISM]010308 nuclear & particles physicsextinctionAstronomy and AstrophysicsAstronomy and AstrophysicISM: lines and bandAstrophysics - Astrophysics of GalaxiesGalaxyISM: lines and bandsAstronomíaInterstellar mediumStars13. Climate actionSpace and Planetary ScienceAstrophysics of Galaxies (astro-ph.GA)lines and bands [ISM]dust
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GES: pre-main-sequence clusters [Fe/H]

2017

The radial metallicity distribution in the Galactic thin disc represents a crucial constraint for modelling disc formation and evolution. Open clusters allow us to derive both the radial metallicity distribution and its evolution over time. In this paper we perform the first investigation of the present-day radial metallicity distribution based on [Fe/H] determinations in late type members of pre-main-sequence clusters. Because of their youth, these clusters are therefore essential for tracing the current inter-stellar medium metallicity. We used the products of the Gaia-ESO Survey analysis of 12 young regions (age<100Myr), covering Galactocentric distances from 6.67 to 8.70kpc. For the fir…

galactic and extragalactic astronomyAstrophysics and AstronomyPhysicsAstrophysics::Instrumentation and Methods for AstrophysicsChemical abundancesAstrophysics::Cosmology and Extragalactic AstrophysicsMilky Way Galaxystellar astronomyInterdisciplinary AstronomyEffective temperatureOpen star clustersobservational astronomyAstrophysics::Earth and Planetary AstrophysicsNatural SciencesAstrophysics::Galaxy Astrophysics
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