Asteroseismology of Stellar Populations in the Milky Way (Astrophysics and Space Science Proceedings Book 39)

The detection of radial and non-radial solar-like oscillations in thousands of G-K giants with CoRoT and Kepler is paving the road for detailed studies of stellar populations in the Galaxy. The available average seismic constraints allow largely model-independent determination of stellar radii and masses, and can be used to determine the position and age of thousands of stars in different regions of the Milky Way, and of giants belonging to open clusters. Such a close connection between stellar evolution, Galactic evolution, and asteroseismology opens a new very promising gate in our understanding of stars and galaxies. This book represents a natural progression from the collection of review papers presented in the book 'Red Giants as Probes of the Structure and Evolution of the Milky Way', which appeared in the Astrophysics and Space Science Proceedings series in 2012. This sequel volume contains review papers on spectroscopy, seismology of red giants, open questions in Galactic astrophysics, and discusses first results achieved by combining photometric/spectroscopic and seismic constraints on populations of stars observed by CoRoT and Kepler. The book also reports on discussions between expert researchers in Galactic evolution, specialists in stellar structure and asteroseismology, and key representatives of extensive ground-based spectroscopic surveys such as APOGEE and the ESO-GAIA Spectroscopic Survey, which would serve as a roadmap for future endeavours in this field of research. Front Matter....Pages i-xiii Front Matter....Pages 1-1 Ages of Stars: Methods and Uncertainties....Pages 3-9 Solar-Like Oscillating Stars as Standard Clocks and Rulers for Galactic Studies....Pages 11-22 Front Matter....Pages 23-23 Uncertainties in Stellar Evolution Models: Convective Overshoot....Pages 25-32 Effects of Rotation on Stellar Evolution and Asteroseismology of Red Giants....Pages 33-41 Open Clusters: Probes of Galaxy Evolution and Bench Tests of Stellar Models....Pages 43-50 Exploiting the Open Clusters in the Kepler and CoRoT Fields....Pages 51-57 Front Matter....Pages 59-59 Photometric Stellar Parameters for Asteroseismology and Galactic Studies....Pages 61-71 Spectroscopic Constraints for Low-Mass Asteroseismic Targets....Pages 73-81 Preliminary Evaluation of the Kepler Input Catalog Extinction Model Using Stellar Temperatures....Pages 83-91 The APOKASC Catalog....Pages 93-100 The Red Giants in NGC 6633 as Seen with CoRoT, HARPS and SOPHIE....Pages 101-104 “Rapid-Fire” Spectroscopy of Kepler Solar-Like Oscillators....Pages 105-108 Front Matter....Pages 109-109 New Observational Constraints to Milky Way Chemodynamical Models....Pages 111-123 The Expected Stellar Populations in the Kepler and CoRoT Fields....Pages 125-132 Early Results from APOKASC....Pages 133-139 The Metallicity Gradient of the Old Galactic Bulge Population....Pages 141-143 Front Matter....Pages 145-145 4MOST: 4m Multi Object Spectroscopic Telescope....Pages 147-154 Mapping the Stellar Populations of the Milky Way with Gaia....Pages 155-163 Front Matter....Pages 165-165 Uncertainties in Models of Stellar Structure and Evolution....Pages 167-182 Photospheric Constraints, Current Uncertainties in Models of Stellar Atmospheres, and Spectroscopic Surveys....Pages 183-185 3 Adopting the Seismic Gravity in Spectroscopic Analyses3.1 Impact on the Determination of the Other Parameters; 3.2 The Ambiguity Surrounding the Best Metallicity Value; 4 A Step Beyond the Determination of the Basic Parameters: The Detailed Chemical Composition; 5 Some Perspectives; References; Preliminary Evaluation of the Kepler Input Catalog Extinction Model Using Stellar Temperatures; 1 Introduction; 2 Comparison of Photometric and Spectroscopic Temperatures; 2.1 Impact of Extinction?; 3 Revision of the KIC Extinctions; 3.1 RJCE Extinctions; 3.2 Extinction Map Comparison; 3.3 Results Acknowledgements; Contents; List of Participants; Part I Introduction; Ages of Stars: Methods and Uncertainties; 1 Why Care About Ages?; 2 Ages for Galactic Studies; 2.1 The Solar Neighborhood; 2.2 The Galaxy as a Whole; 3 Methods for Solar-Type Stars; 3.1 Rotation and Activity; 3.2 Isochrone Placement; 3.3 Asteroseismology; 4 Age-Dating Evolved Stars; 5 Prospects for Improvements; References; Solar-Like Oscillating Stars as Standard Clocks and Rulers for Galactic Studies; 1 Introduction; 2 Harvesting Data for Ensemble Seismology; 3 From Precise to Accurate Clocks and Rulers; 4 Summary 2 Tests of Asteroseismic Scaling Relations3 Identification of Stars That Evolved Through Non-standard Evolution; Conclusions; References; Part III Photospheric Constraints and Reports on Ongoing Spectroscopic Surveys (e.g. GESS, APOGEE, GALAH); Photometric Stellar Parameters for Asteroseismology and Galactic Studies; 1 Introduction; 2 Photometric Stellar Parameters; 3 Seismic Stellar Parameters; 4 A Match Made in Heaven; Conclusions and Future Perspectives; References; Spectroscopic Constraints for Low-Mass Asteroseismic Targets; 1 Introduction; 2 The Samples Discussed 1.1 Pre-main Sequence Evolution1.2 Main-Sequence Evolution; 1.3 Post-main Sequence Evolution; 2 Asteroseismic Studies of Red-Giant Stars; 2.1 Mixed Modes in the Red Giant KIC 8366239; 2.2 Mixed Modes in the Red Giant KIC 7341231; 2.3 Rotational Splittings for a Large Sample of Red Giants; Conclusion; References; Open Clusters: Probes of Galaxy Evolution and Bench Tests of Stellar Models; 1 Introduction; 2 White Dwarfs; 2.1 Initial-Final Mass Relation; 2.2 WD Ages; 3 Rotation; References; Exploiting the Open Clusters in the Kepler and CoRoT Fields; 1 Introduction