0000000001269399

AUTHOR

L. Bravi

showing 4 related works from this author

The Gaia-ESO Survey: Structural and dynamical properties of the young cluster Chamaeleon i

2017

Investigating the physical mechanisms driving the dynamical evolution of young star clusters is fundamental to our understanding of the star formation process and the properties of the Galactic field stars. The young (~2 Myr) and partially embedded cluster Chamaeleon I is one of the closest laboratories for the study of the early stages of star cluster dynamics in a low-density environment. The aim of this work is to study the structural and kinematical properties of this cluster combining parameters from the high-resolution spectroscopic observations of the Gaia-ESO Survey with data from the literature. Our main result is the evidence of a large discrepancy between the velocity dispersion …

astro-ph.SRStellar populationopen clustersand associations: individual: Chamaeleon IIndividual: Chamaeleon I [Open clusters and associations]Open clusters and associations: Individual: Chamaeleon I; Stars: Kinematics and dynamics; Stars: Pre-main sequence; Techniques: Spectroscopicastro-ph.GAstars: kinematics and dynamicsFOS: Physical sciencesAstrophysicsAstrophysics::Cosmology and Extragalactic Astrophysicsstars: pre-main sequence01 natural sciencesVirial theoremKinematics and dynamics [Stars]Stars: Kinematics and dynamic0103 physical sciencesCluster (physics)Mass segregationAstrophysics::Solar and Stellar Astrophysics010303 astronomy & astrophysicsStellar evolutionQCSolar and Stellar Astrophysics (astro-ph.SR)Astrophysics::Galaxy AstrophysicsQBPhysicsPre-main sequence [Stars]open clusters and associations: individual: Chamaeleon I010308 nuclear & particles physicsVelocity dispersionAstronomy and AstrophysicsAstrophysics - Astrophysics of Galaxies[SDU.ASTR.IM]Sciences of the Universe [physics]/Astrophysics [astro-ph]/Instrumentation and Methods for Astrophysic [astro-ph.IM]stars: kinematics and dynamics; stars: pre-main sequence; open clustersand associations: individual: Chamaeleon I; techniques: spectroscopicStar clusterAstrophysics - Solar and Stellar AstrophysicsSpace and Planetary ScienceAstrophysics of Galaxies (astro-ph.GA)Astrophysics::Earth and Planetary AstrophysicsSpectroscopic [Techniques]Equivalent widthtechniques: spectroscopicQB799
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The Gaia-ESO Survey: The present-day radial metallicity distribution of the Galactic disc probed by pre-main-sequence clusters

2017

Full list of authors: Spina, L.; Randich, S.; Magrini, L.; Jeffries, R. D.; Friel, E. D.; Sacco, G. G.; Pancino, E.; Bonito, R.; Bravi, L.; Franciosini, E.; Klutsch, A.; Montes, D.; Gilmore, G.; Vallenari, A.; Bensby, T.; Bragaglia, A.; Flaccomio, E.; Koposov, S. E.; Korn, A. J.; Lanzafame, A. C. Smiljanic, R.; Bayo, A.; Carraro, G.; Casey, A. R.; Costado, M. T.; Damiani, F.; Donati, P.; Frasca, A.; Hourihane, A.; Jofré, P.; Lewis, J.; Lind, K.; Monaco, L.; Morbidelli, L.; Prisinzano, L.; Sousa, S. G.; Worley, C. C.; Zaggia, S.

Initial mass functionastro-ph.SRMetallicityMilky Wayastro-ph.GAFOS: Physical sciencesstars:abundancesAstrophysicsAstrophysics::Cosmology and Extragalactic Astrophysics01 natural sciencesevolution [Galaxy]Galaxy: diskpre-main sequence [Stars]0103 physical sciencesCluster (physics)Astrophysics::Solar and Stellar Astrophysicsgalaxy:disk010303 astronomy & astrophysicsSolar and Stellar Astrophysics (astro-ph.SR)Astrophysics::Galaxy AstrophysicsQBPhysicsGalaxy: evolutiongeneral [Open clusters and associations]010308 nuclear & particles physicsStar formationstars: abundances; stars: pre-main sequence; Galaxy: abundances; Galaxy:disk; Galaxy: evolution; open clusters and associations: generalStars: abundancesabundances [Galaxy]galaxy:evolutionAstronomy and AstrophysicsOpen clusters and associations: generalAstrophysics - Astrophysics of GalaxiesSupernovaAstrophysics - Solar and Stellar Astrophysics13. Climate actionSpace and Planetary ScienceAstrophysics of Galaxies (astro-ph.GA)abundances [Stars]stars:pre-main sequenceChamaeleonStars: pre-main sequenceGalaxy: abundancesAstrophysics::Earth and Planetary Astrophysicsdisk [Galaxy]galaxy:abundancesopen clusters and associations:generalOpen cluster
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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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Gaia-ESO Survey: Cha I members

2017

Investigating the physical mechanisms driving the dynamical evolution of young star clusters is fundamental to our understanding of the star formation process and the properties of the Galactic field stars. The young (~2Myr) and partially embedded cluster Chamaeleon I is one of the closest laboratories to study the early stages of star cluster dynamics in a low-density environment. The aim of this work is to study the structural and kinematical properties of this cluster combining parameters from the high-resolution spectroscopic observations of the Gaia-ESO Survey with data from the literature. Our main result is the evidence of a large discrepancy between the velocity dispersion ({sigma}_…

observational astronomyOpen star clustersEffective temperatureAstrophysics and AstronomyRadial velocityExoplanet AstronomyStellar AstronomyPhysicsAstrophysics::Solar and Stellar AstrophysicsStellar massesAstrophysics::Cosmology and Extragalactic AstrophysicsNatural SciencesAstrophysics::Galaxy Astrophysics
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