Search Results - "Feltzing, S."
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Measuring the vertical age structure of the Galactic disc using asteroseismology and SAGA
Published in Monthly notices of the Royal Astronomical Society (01-01-2016)“…The existence of a vertical age gradient in the Milky Way disc has been indirectly known for long. Here, we measure it directly for the first time with seismic…”
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Tracing the Galactic Thick Disk to Solar Metallicities
Published in The Astrophysical journal (01-07-2007)“…We show that the Galactic thick disk reaches at least solar metallicites and that it experienced strong chemical enrichment during a period of similar to 3…”
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The Gaia-ESO Survey: revisiting the Li-rich giant problem
Published in Monthly notices of the Royal Astronomical Society (21-09-2016)“…The discovery of lithium-rich giants contradicts expectations from canonical stellar evolution. Here we report on the serendipitous discovery of 20 Li-rich…”
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Quantitative chemical tagging, stellar ages and the chemo-dynamical evolution of the Galactic disc
Published in Monthly notices of the Royal Astronomical Society (2014)“…The early science results from the new generation of high-resolution stellar spectroscopic surveys, such as Galactic Archaeology with HERMES (GALAH) and the…”
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The origin and chemical evolution of carbon in the Galactic thin and thick discs
Published in Monthly notices of the Royal Astronomical Society (01-04-2006)“…In order to trace the origin and evolution of carbon in the Galactic disc, we have determined carbon abundances in 51 nearby F and G dwarf stars. The sample is…”
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The Gaia-ESO Survey: a quiescent Milky Way with no significant dark/stellar accreted disc
Published in Monthly notices of the Royal Astronomical Society (01-07-2015)“…According to our current cosmological model, galaxies like the Milky Way are expected to experience many mergers over their lifetimes. The most massive of the…”
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The Gaia-ESO Survey: the selection function of the Milky Way field stars
Published in Monthly notices of the Royal Astronomical Society (21-07-2016)“…The Gaia-ESO Survey was designed to target all major Galactic components (i.e. bulge, thin and thick discs, halo and clusters), with the goal of constraining…”
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The Gaia-ESO Survey: the most metal-poor stars in the Galactic bulge
Published in Monthly notices of the Royal Astronomical Society (21-12-2014)“…We present the first results of the EMBLA survey (Extremely Metal-poor BuLge stars with AAOmega), aimed at finding metal-poor stars in the Milky Way bulge,…”
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An optimized tiling pattern for multiobject spectroscopic surveys: application to the 4MOST survey
Published in Monthly notices of the Royal Astronomical Society (01-10-2020)“…ABSTRACT Large multiobject spectroscopic surveys require automated algorithms to optimize their observing strategy. One of the most ambitious upcoming…”
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Disentangling the Hercules Stream
Published in The Astrophysical journal (01-02-2007)“…Using high-resolution spectra of nearby F and G dwarf stars, we have investigated the detailed abundance and age structure of the Hercules stream. We find that…”
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A New Low Mass for the Hercules dSph: The End of a Common Mass Scale for the Dwarfs?
Published in The Astrophysical journal (20-11-2009)“…We present a new mass estimate for the Hercules dwarf spheroidal (dSph) galaxy, based on the revised velocity dispersion obtained by Aden et al. The removal of…”
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Sun‐like stars unlike the Sun: Clues for chemical anomaliesof cool stars
Published in Astronomische Nachrichten (01-05-2017)“…We present a summary of the splinter session “Sun‐like stars unlike the Sun” that was held on June 9, 2016, as part of the Cool Stars 19 conference (Uppsala,…”
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Stellar science from a blue wavelength range
Published in Astronomische Nachrichten (01-09-2015)“…From stellar spectra, a variety of physical properties of stars can be derived. In particular, the chemical composition of stellar atmospheres can be inferred…”
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Chemical constraints on the formation of the Galactic thick disk
Published in Conferences of the Assembling the Puzzle of the Milky Way,Le Grand-Bornand, France,2011-04-17 - 2011-04-22 (01-01-2012)“…We highlight some results from our detailed abundance analysis study of 703 kinematically selected F and G dwarf stars in the solar neighbourhood. The analysis…”
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Journal Article Conference Proceeding -
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Sun-like stars unlike the Sun: Clues for chemical anomalies of cool stars
Published in Astronomische Nachrichten (01-05-2017)“…We present a summary of the splinter session "Sun-like stars unlike the Sun" that was held on June 9, 2016, as part of the Cool Stars 19 conference (Uppsala,…”
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OGLE-2009-BLG-076S: The Most Metal-Poor Dwarf Star in the Galactic Bulge
Published in The Astrophysical journal (01-07-2009)“…Measurements based on a large number of red giant stars suggest a broad metallicity distribution function (MDF) for the Galactic bulge, centered on [Fe/H]…”
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Velocity and abundance precisions for future high-resolution spectroscopic surveys: A study for 4MOST
Published in Astronomische Nachrichten (01-03-2013)“…In preparation for future, large‐scale, multi‐object, high‐resolution spectroscopic surveys of the Galaxy, we present a series of tests of the precision in…”
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The chemical evolution of the Galactic Bulge seen through micro-lensing events
Published in Conferences of the Assembling the Puzzle of the Milky Way,Le Grand-Bornand, France,2011-04-17 - 2011-04-22 (01-01-2012)“…Galactic bulges are central to understanding galaxy formation and evolution. Here we report on recent studies using micro-lensing events to obtain spectra of…”
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Journal Article Conference Proceeding -
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The Gaia-ESO survey: mapping the shape and evolution of the radial abundance gradients with open clusters
Published 27-10-2022“…A&A 669, A119 (2023) The spatial distribution of elemental abundances and their time evolution are among the major constraints to disentangle the scenarios of…”
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