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Reddenings of FGK supergiants and classical Cepheids from spectroscopic data
V. V. Kovtyukh, C. Soubiran, R. E. Luck +4
Accurate and homogeneous atmospheric parameters (Teff, log (g), Vt, [Fe/H]) are derived for 74 FGK non-variable supergiants from high-resolution, high signal-to-noise ratio, echell…
Spectroscopic ages and metallicities of stellar populations: validation of full spectrum fitting
M. Koleva, Ph. Prugniel, P. Ocvirk +2
Fitting whole spectra at intermediate spectral resolution (R = 1000 -- 3000), to derive physical properties of stellar populations, appears as an optimized alternative to methods b…
Vertical distribution of Galactic disk stars IV - AMR and AVR from clump giants
C. Soubiran, O. Bienayme, T. V. Mishenina +1
We present the parameters of 891 stars, mostly clump giants, including atmospheric parameters, distances, absolute magnitudes, spatial velocities, galactic orbits and ages. One par…
Analysis of stellar populations with large empirical libraries at high spectral resolution
Philippe Prugniel, Mina Koleva, Pierre Ocvirk +2
The stellar population models dramatically progressed with the arrival of large and complete libraries, ELODIE, CFLIB (=Indo-US) and MILES at a relatively high resolution. We show…
Comparison of different spectral population models
Mina Koleva, Philippe Prugniel, Pierre Ocvirk +3
We have compared simple stellar populations (SSPs) generated with different population synthesis tools: BC03, Vazdekis and Pegase.HR and different stellar libraries: ELODIE3.1, Ste…
New release of the ELODIE library: Version 3.1
Ph. Prugniel, C. Soubiran, M. Koleva +1
We present ELODIE.3.1, an updated release of the library published in Prugniel & Soubiran (2001, 2004). The library includes 1962 spectra of 1388 stars obtained with the ELODIE spe…
Elemental abundances in the atmosphere of clump giants
T. V. Mishenina, O. Bienaym'e, T. I. Gorbaneva +4
The aim of this paper is to provide the fundamental parameters and abundances for a large sample of local clump giants with a high accuracy. The selection of clump stars for the sa…
Elemental abundances as a function of kinematics in the Milky Way's disk
Pascal Girard, Caroline Soubiran
We present the results of our investigation of three samples kinematically representative of the thin and thick disks and the Hercules stream using the catalogue of Soubiran & Gira…
Vertical distribution of Galactic disk stars: III. The Galactic disk surface mass density from red clump giants
O. Bienaymé, C. Soubiran, T. V. Mishenina +2
We used red clump stars to measure the surface mass density of the Galactic disk in the solar neighbourhood. High resolution spectra of red clump stars towards the NGP have been ob…
Abundance trends in kinematical groups of the Milky Way's disk
C. Soubiran, P. Girard
We have compiled a large catalogue of metallicities and abundance ratios from the literature in order to investigate abundance trends of several alpha and iron peak elements in the…
Modelling and interpreting optical spectra of galaxies at R=10000
Ariane Lancon, Pierre Ocvirk, Damien Le Borgne +5
One way to extract more information from the integrated light of galaxies is to improve the spectral resolution at which observations and analysis are carried out. The population s…
[alpha/Fe] in the thin and the thick disk towards an automatic parametrization of stellar spectra
Pascal Girard, Caroline Soubiran
We test an automatic procedure to measure [Fe/H] and [alpha/Fe] on high resolution spectra. The test sample is the intersection of the ELODIE library and a catalogue of 830 stars h…
Abundances and ages of the deconvolved thin/thick disks of the Galaxy
Pascal Girard, Caroline Soubiran
We have investigated the abundance of several chemical elements in two large stellar samples kinematically representative of the thin and the thick disks of the Galaxy. Chemical, k…
A new Bohm-Vitense gap in the temperature range 5560 to 5610K in the Main Sequence
V. V. Kovtyukh, C. Soubiran, S. I. Belik
Highly precise temperatures (sigma = 10-15 K) have been determined from line depth ratios for a set of 248 F-K field dwarfs of about solar metallicity (-0.5 < [Fe/H] < +0.4), based…
GAUDI: a preparatory archive for the COROT mission
E. Solano, C. Catala, R. Garrido +34
The GAUDI database (Ground-based Asteroseismology Uniform Database Interface, http://sdc.laeff.esa.es/gaudi/) is a preparatory archive for the COROT (COnvection, ROtation and plane…
Spectroscopic survey of the Galaxy with Gaia I. Design and performance of the Radial Velocity Spectrometer
D. Katz, U. Munari, M. Cropper +22
The definition and optimisation studies for the Gaia satellite spectrograph, the Radial Velocity Spectrometer (RVS), converged in late 2002 with the adoption of the instrument base…
Evolutionary synthesis of galaxies at high spectral resolution with the code PEGASE-HR
Damien Le Borgne, Brigitte Rocca-Volmerange, Philippe Prugniel +3
We present PEGASE-HR, a new stellar population synthesis program generating high resolution spectra (R=10 000) over the optical range lambda=400--680 nm. It links the spectro-photo…
The ELODIE archive
J. Moultaka, S. A. Ilovaisky, Ph. Prugniel +1
The ELODIE archive contains the complete collection of high-resolution echelle spectra accumulated over the last decade using the ELODIE spectrograph at the Observatoire de Haute-P…
On the correlation of elemental abundances with kinematics among galactic disk stars
T. V. Mishenina, C. Soubiran, V. V. Kovtyukh +1
We have performed the detailed analysis of 174 high-resolution spectra of FGK dwarfs obtained with the ELODIE echelle spectrograph at the Observatoire de Haute-Provence. Abundances…
High precision effective temperatures for 181 F--K dwarfs from line-depth ratios
V. V. Kovtyukh, C. Soubiran, S. I. Belik +1
Line depth ratios measured on high resolution (R=42000), high S/N echelle spectra are used for the determination of precise effective temperatures of 181 F,G,K Main Sequence stars…
STELIB: a library of stellar spectra at R~2000
J. -F. Le Borgne, G. Bruzual, R. Pello +6
We present STELIB, a new spectroscopic stellar library, available at http://webast.ast.obs-mip.fr/stelib . STELIB consists of an homogeneous library of 249 stellar spectra in the v…
Vertical distribution of Galactic disk stars I - Kinematics and metallicity
C. Soubiran, O. Bienaymé, A. Siebert
Nearly 400 Tycho-2 stars have been observed in a 720 square degree field in the direction of the North Galactic Pole with the high resolution echelle spectrograph ELODIE. Absolute…
Abundances of Cu and Zn in metal-poor stars: clues for Galaxy evolution
T. V. Mishenina, V. V. Kovtyukh, C. Soubiran +2
We present new observations of copper and zinc abundances in 90 metal-poor stars, belonging to the metallicity range -3< [Fe/H] < -0.5. The present study is based on high resolutio…
NGC 6994 - clearly not a physical stellar ensemble
M. Odenkirchen, C. Soubiran
The sparse stellar ensemble NGC 6994 = M73 has recently been discussed as a possible remnant of an old open cluster. In order to solve the controversy on the nature of this object…