8.6k citations · 13.7k across the 78 of their papers we have counts for
79 papers
Oxygen isotopic ratio in open cluster RGB stars: A new method for accurate mass and age estimations
O. Straniero, C. Abia, I. Domínguez +1
Determining precise and homogeneous absolute ages of open clusters (OCs) remains a challenge in stellar astrophysics, mainly due to parameter degeneracies in photometric methods an…
Solar twins in Gaia DR3 GSP-Spec II. Age distribution and its implications for the Sun's migration
Takuji Tsujimoto, Daisuke Taniguchi, Alejandra Recio-Blanco +2
Solar twins are among the most powerful tracers of Galactic disk evolution owing to their unique property of sharing nearly solar metallicities ([Fe/H] ~ 0) while spanning a wide r…
Solar twins in Gaia DR3 GSP-Spec I. Building a large catalog of Solar twins with ages
Daisuke Taniguchi, Patrick de Laverny, Alejandra Recio-Blanco +2
[Abbreviated] Context. Solar twins, stars whose stellar parameters (Teff, log g, and [M/H]) are very close to the Solar ones, offer a unique opportunity to investigate Galactic arc…
The AMBRE Project: Lead abundance in Galactic stars
G. Contursi, P. de Laverny, A. Recio-Blanco +4
The chemical evolution of neutron capture elements in the Milky Way is still a matter of debate. Although more and more studies investigate their chemical behaviour, there is still…
The Gaia-ESO Survey DR5.1 and Gaia DR3 GSP-Spec: a comparative analysis
M. Van der Swaelmen, C. Viscasillas Vazquez, L. Magrini +10
(abridged) The third data release of Gaia, has provided stellar parameters, metallicity [M/H], [α/Fe], individual abundances, broadening parameter from its RVS spectra for about 5.…
Double Red Giant Branch and Red Clump features of Galactic disc stellar populations with Gaia GSPspec
Alejandra Recio-Blanco, P. de Laverny, P. A. Palicio +4
To disentangle the different competing physical processes at play in Galactic evolution, a detailed chrono chemicalkinematical, and dynamical characterisation of the disc bimodalit…
Production of s-process elements in AGB stars as revealed by Gaia GSP-spec abundances
G. Contursi, P. de Laverny, A. Recio-Blanco +2
The recent parameterisation by the GSP-spec module of Gaia/RVS spectra has produced an homogeneous catalogue of about 174,000 AGB stars. Among the 13 chemical elements presented in…
Impact of the Galactic bar on tidal streams within the Galactic disc: The case of the tidal stream of the Hyades
Guillaume F. Thomas, Benoit Famaey, Giacomo Monari +5
Tidal streams of disrupted clusters are routinely detected in the halo of the Milky Way. It was recently shown that tidal streams of open clusters can now also be detected within t…
On the origin of the Galactic thin and thick discs, their abundance gradients and the diagnostic potential of their abundance ratios
Nikos Prantzos, Carlos Abia, Tianxiang Chen +8
Using a semi-analytical model of the evolution of the Milky Way, we show how secular evolution can create distinct overdensities in the phase space of various properties (e.g. age…
Commission Femmes et Astronomie de la SF2A: Women participation in French astronomy
Rhita-Maria Ouazzani, Caroline Bot, Sylvie Brau-Nogué +7
The Commission Femmes et Astronomie conducted a statistical study that aims at mapping the presence of women in French professional Astronomy today, and set a starting point for st…
The cerium content of the Milky Way as revealed by Gaia DR3 GSP-Spec abundances
G. Contursi, P. de Laverny, A. Recio-Blanco +12
The recent Gaia Third Data Release contains a homogeneous analysis of millions of high-quality Radial Velocity Spectrometer (RVS) stellar spectra by the GSP-Spec module. This led t…
Stellar ages, masses, extinctions and orbital parameters based on spectroscopic parameters of Gaia DR3
G. Kordopatis, M. Schultheis, P. J. McMillan +13
Gaia DR3 provides radial velocities for 33 million stars and spectroscopically derived atmospheric parameters for more than five million targets. When combined with the astrometric…
The chemical signature of the Galactic spiral arms revealed by Gaia DR3
E. Poggio, A. Recio-Blanco, P. A. Palicio +8
Taking advantage of the recent Gaia Data Release 3 (DR3), we map chemical inhomogeneities in the Milky Way's disc out to a distance of 4 kpc from the Sun, using different sa…
Beyond the two-infall model I. Indications for a recent gas infall with Gaia DR3 chemical abundances
E. Spitoni, A. Recio-Blanco, P. de Laverny +7
The recent Gaia Data Release 3 (DR3) represents an unparalleled revolution in Galactic Archaeology, providing us with numerous radial velocities chemical abundances for millions of…
Solid confirmation of the broad DIB around 864.8 nm using stacked Gaia-RVS spectra
H. Zhao, M. Schultheis, T. Zwitter +26
Studies of the correlation between different diffuse interstellar bands (DIBs) are important for exploring their origins. However, the Gaia-RVS spectral window between 846 and 870…
Characterisation of Galactic carbon stars and related stars from Gaia-EDR3
Carlos Abia, Patrick de Laverny, Merce Romero +1
We extend here a previous investigation on the characteristics of Galactic carbon stars using more accurate EDR3 astrometry measurements. Based on a much larger statistics, we conf…
Gaia-ESO Survey: Role of magnetic activity and starspots on pre-main sequence lithium evolution
E. Franciosini, E. Tognelli, S. Degl'Innocenti +24
Pre-main sequence models with inflated radii are needed to simultaneously reproduce the colour-magnitude diagram and the lithium depletion pattern in young open clusters. We tested…
The behaviour of lithium at high metallicity in the Milky Way -- Selection effects in the samples and the possible role of atomic diffusion
C. Charbonnel, S. Borisov, N. Prantzos +1
We revisit large spectroscopic data sets for field stars from the literature to derive the upper Li envelope in the high metallicity regime in our Galaxy. We take advantage of Gaia…
The AMBRE Project: Origin and evolution of sulfur in the Milky Way
J. Perdigon, P. de Laverny, A. Recio-Blanco +4
Sulfur is a volatile chemical element that plays an important role in tracing the chemical evolution of galaxies. However, its nucleosynthesis origin and abundance variations are s…
The diffuse interstellar band around 8620 Å I. Methods and application to the GIBS data set
H. Zhao, M. Schultheis, A. Recio-Blanco +6
We developed a set of procedures to automatically detect and measure the DIB around 8620 Å (the Gaia DIB) for a wide range of temperatures. The DIB profile is fit with a Gaussian f…
Benchmark stars, benchmark spectrographs: Detailed spectroscopic comparison of ESPRESSO, PEPSI, and HARPS data for Gaia benchmark stars
V. Adibekyan, S. G. Sousa, N. C. Santos +14
Gaia benchmark stars are selected to be calibration stars for different spectroscopic surveys. Very high-quality and homogeneous spectroscopic data for these stars are therefore re…
The heavy-elements heritage of the falling sky
Alejandra Recio-Blanco, Emma Fernández Alvar, Patrick de Laverny +3
Recent dynamical analysis based on Gaia data have revealed major accretion events in Milky Way's history. Nevertheless, our understanding of the primordial Galaxy is hindered becau…
Fluorine Abundances in the Globular Cluster M 4
Rafael Guerço, Katia Cunha, Verne V. Smith +6
We present chemical abundances for the elements carbon, sodium, and fluorine in 15 red giants of the globular cluster M 4, as well as six red giants of the globular cluster Cen…
The AMBRE Project: searching for the closest solar siblings
V. Adibekyan, P. de Laverny, A. Recio-Blanco +7
Finding solar siblings, that is, stars that formed in the same cluster as the Sun, will yield information about the conditions at the Sun's birthplace. We search for solar sibling…