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An asteroseismic age estimate of the open cluster NGC 6866 using Kepler and Gaia
K. Brogaard, T. Arentoft, A. Miglio +10
Asteroseismology of solar-like oscillations in giant stars allow the derivation of their masses and radii. For members of open clusters this allows an age estimate of the cluster w…
The Gaia-ESO Public Spectroscopic Survey: Motivation, implementation, GIRAFFE data processing, analysis, and final data products
G. Gilmore, S. Randich, C. C. Worley +165
The Gaia-ESO Public Spectroscopic Survey is an ambitious project designed to obtain astrophysical parameters and elemental abundances for 100,000 stars, including large representat…
Asteroseismology of evolved stars to constrain the internal transport of angular momentum. IV. Internal rotation of Kepler 56 from an MCMC analysis of the rotational splittings
L. Fellay, G. Buldgen, P. Eggenberger +4
The observations of global stellar oscillations of post main-sequence stars by space-based photometry missions allowed to directly determine their internal rotation. These constrai…
Testing abundance-age relations beyond solar analogues with Kepler LEGACY stars
Thierry Morel, Orlagh L. Creevey, Josefina Montalban +2
We present abundances of 21 elements in a sample of 13 bright FG dwarfs drawn from the Kepler LEGACY sample to examine the applicability of the abundance-age relations to stars wit…
HAYDN -- High-precision AsteroseismologY of DeNse stellar fields (ESA Voyage 2050 White Paper)
Andrea Miglio, Leo Girardi, Frank Grundahl +29
In the last decade, the Kepler and CoRoT space-photometry missions have demonstrated the potential of asteroseismology as a novel, versatile and powerful tool to perform exquisite…
Revisiting Kepler-444 Part I. Seismic modelling and inversions of stellar structure
G. Buldgen, M. Farnir, C. Pezzotti +10
Context. The CoRoT and Kepler missions have paved the way for synergies between exoplanetology and asteroseismology. The use of seismic data helps providing stringent constraints o…
Combining multiple structural inversions to constrain the Solar modelling problem
G. Buldgen, S. J. A. J. Salmon, A. Noels +4
The Sun is the most studied of stars and a laboratory of fundamental physics. However, the understanding of our star is stained by the solar modelling problem which can stem from v…
Asteroseismology of evolved stars to constrain the internal transport of angular momentum. I. Efficiency of transport during the subgiant phase
P. Eggenberger, S. Deheuvels, A. Miglio +9
Context: The observations of solar-like oscillations in evolved stars have brought important constraints on their internal rotation rates. To correctly reproduce these data, an eff…
Combining multiple structural inversions to constrain the Solar modelling problem
G. Buldgen, S. J. A. J. Salmon, A. Noels +12
The Sun is the most studied of all stars. It is a reference for all other observed stars and a laboratory of fundamental physics helping us understand processes occuring in conditi…
The Gaia-ESO Survey: properties of newly discovered Li-rich giants
R. Smiljanic, E. Franciosini, A. Bragaglia +41
We report 20 new lithium-rich giants discovered within the Gaia-ESO Survey, including the first Li-rich giant with evolutionary stage confirmed by CoRoT data. Atmospheric parameter…
New PARSEC database of alpha-enhanced stellar evolutionary tracks and isochrones I. Calibration with 47 Tuc (NGC104) and the improvement on RGB bump
Xiaoting Fu, Alessandro Bressan, Paola Marigo +4
Precise studies on the Galactic bulge, globular cluster, Galactic halo and Galactic thick disk require stellar models with alpha enhancement and various values of helium content. T…
PLATO as it is: a legacy mission for Galactic archaeology
A. Miglio, C. Chiappini, B. Mosser +102
Deciphering the assembly history of the Milky Way is a formidable task, which becomes possible only if one can produce high-resolution chrono-chemo-kinematical maps of the Galaxy.…
A new generation of PARSEC-COLIBRI stellar isochrones including the TP-AGB phase
Paola Marigo, Leo Girardi, Alessandro Bressan +13
We introduce a new generation of PARSEC-COLIBRI stellar isochrones that include a detailed treatment of the thermally-pulsing asymptotic giant branch (TP-AGB) phase, and covering a…
Models of red giants in the CoRoT asteroseismology fields combining asteroseismic and spectroscopic constraints
N. Lagarde, A. Miglio, P. Eggenberger +17
Context. The availability of asteroseismic constraints for a large sample of red giant stars from the CoRoT and Kepler missions paves the way for various statistical studies of the…
Young [/Fe]-enhanced stars discovered by CoRoT and APOGEE: What is their origin?
C. Chiappini, F. Anders, T. S. Rodrigues +34
We report the discovery of a group of apparently young CoRoT red-giant stars exhibiting enhanced [alpha/Fe] abundance ratios (as determined from APOGEE spectra) with respect to Sol…
Mixed modes in red giants: a window on stellar evolution
B. Mosser, O. Benomar, K. Belkacem +18
The detection of oscillations with a mixed character in subgiants and red giants allows us to probe the physical conditions in their cores. With these mixed modes, we aim at determ…
Theoretical power spectra of mixed modes in low mass red giant stars
M. Grosjean, M. -A. Dupret, K. Belkacem +3
CoRoT and Kepler observations of red giant stars revealed very rich spectra of non-radial solar-like oscillations. Of particular interest was the detection of mixed modes that exhi…
Table of Contents of: "Asteroseismology of Stellar Populations in the Milky Way"
Andrea Miglio, Patrick Eggenberger, Leo Girardi +1
We give here the Table of Contents and clickable links to papers of the proceedings from the workshop "Asteroseismology of Stellar Populations in the Milky Way", held in Sesto, 22-…
The red giants in NGC 6633 as seen with CoRoT, HARPS and SOPHIE
Ennio Poretti, Philippe Mathias, Caroline Barban +5
The open cluster NGC 6633 was observed with CoRoT in 2011 and simultaneous high-resolution spectroscopy was obtained with the SOPHIE and HARPS spectrographs. One of the four target…
The puzzling new class of variable stars in NGC 3766 : old friend pulsators?
S. J. A. J. Salmon, J. Montalbàn, D. R. Reese +2
The recent variability survey of the NGC 3766 cluster revealed a considerable number of periodic variable stars in a region of the H-R diagram where no pulsation is expected. This…
On the proper use of the Schwarzschild and Ledoux criteria in stellar evolution computations
Maurice Gabriel, Arlette Noels, Josefina Montalban +1
The era of detailed asteroseismic analyses opened by space missions such as CoRoT and has highlighted the need for stellar models devoid of numerical inaccuracies…
Prospects for asteroseismic inference on the envelope helium abundance in red giant stars
A. -M. Broomhall, A. Miglio, J. Montalban +6
Regions of rapid variation in the internal structure of a star are often referred to as acoustic glitches since they create a characteristic periodic signature in the frequencies o…
Atmospheric parameters and chemical properties of red giants in the CoRoT asteroseismology fields
T. Morel, A. Miglio, N. Lagarde +11
A precise characterisation of the red giants in the seismology fields of the CoRoT satellite is a prerequisite for further in-depth seismic modelling. High-resolution FEROS and HAR…
Properties of 42 Solar-type Kepler Targets from the Asteroseismic Modeling Portal
T. S. Metcalfe, O. L. Creevey, G. Dogan +39
Recently the number of main-sequence and subgiant stars exhibiting solar-like oscillations that are resolved into individual mode frequencies has increased dramatically. While only…