Asteroseismic classification of stellar populations among 13000 red giants observed by Kepler

Abstract

Of the more than 150000 targets followed by the Kepler Mission, about 10% were selected as red giants. Due to their high scientific value, in particular for Galaxy population studies and stellar structure and evolution, their Kepler light curves were made public in late 2011. More than 13000 (over 85%) of these stars show intrinsic flux variability caused by solar-like oscillations making them ideal for large scale asteroseismic investigations. We automatically extracted individual frequencies and measured the period spacings of the dipole modes in nearly every red giant. These measurements naturally classify the stars into various populations, such as the red giant branch, the low-mass (M/Msol < 1.8) helium-core-burning red clump, and the higher-mass (M/Msol > 1.8) secondary clump. The period spacings also reveal that a large fraction of the stars show rotationally induced frequency splittings. This sample of stars will undoubtedly provide an extremely valuable source for studying the stellar population in the direction of the Kepler field, in particular when combined with complementary spectroscopic surveys.

6 page, 5 figures, accepted by ApJL

References in corpus (2)

• Modules for Experiments in Stellar Astrophysics (MESA)
• Spin down of the core rotation in red giants

Cited by in corpus (177)

• The K2 Mission: Characterization and Early results
• Fast and scalable Gaussian process modeling with applications to astronomical time series
• GYRE: An open-source stellar oscillation code based on a new Magnus Multiple Shooting Scheme
• Revised Stellar Properties of Kepler Targets for the Quarter 1-16 Transit Detection Run
• Abundances, Stellar Parameters, and Spectra From the SDSS-III/APOGEE Survey
• The APOKASC Catalog: An Asteroseismic and Spectroscopic Joint Survey of Targets in the Kepler Fields
• Revised Radii of Kepler Stars and Planets Using Gaia Data Release 2
• The Second APOKASC Catalog: The Empirical Approach
• Revised Stellar Properties of Kepler Targets for the Q1-17 (DR25) Transit Detection Run
• Asteroseismology and Gaia: Testing Scaling Relations Using 2200 Kepler Stars with TGAS Parallaxes
• Rotation and magnetism of Kepler pulsating solar-like stars. Towards asteroseismically calibrated age-rotation relations
• Red giant masses and ages derived from carbon and nitrogen abundances
• The Impact of Stellar Multiplicity on Planetary Systems, I.: The Ruinous Influence of Close Binary Companions
• Precise Radial Velocities of Giant Stars VII. Occurrence Rate of Giant Extrasolar Planets as a Function of Mass and Metallicity
• Asteroseismology of 16000 Kepler Red Giants: Global Oscillation Parameters, Masses, and Radii
• The APOGEE red-clump catalog: Precise distances, velocities, and high-resolution elemental abundances over a large area of the Milky Way's disk
• Mixed modes in red giants: a window on stellar evolution
• Stellar population synthesis based modelling of the Milky Way using asteroseismology of 13000 Kepler red giants
• They are Small Worlds After All: Revised Properties of Kepler M Dwarf Stars and their Planets
• Bayesian distances and extinctions for giants observed by Kepler and APOGEE
• Period spacings in red giants II. Automated measurement
• Asteroseismology of solar-type stars
• Giant star seismology
• Confirmation of the $Gaia$ DR2 parallax zero-point offset using asteroseismology and spectroscopy in the $Kepler$ field
• Core rotation braking on the red giant branch for various mass ranges
• A prevalence of dynamo-generated magnetic fields in the cores of intermediate-mass stars
• Measuring the vertical age structure of the Galactic disc using asteroseismology and SAGA
• Calibrations of Atmospheric Parameters Obtained from the First Year of SDSS-III APOGEE Observations
• An observational correlation between stellar brightness variations and surface gravity
• Impact on asteroseismic analyses of regular gaps in Kepler data
• Stroemgren survey for Asteroseismology and Galactic Archaeology: let the SAGA begin
• Period spacings in red giants I. Disentangling rotation and revealing core structure discontinuities
• Gap interpolation by inpainting methods : Application to Ground and Space-based Asteroseismic data
• Oscillating red giants observed during Campaign 1 of the Kepler K2 mission: New prospects for galactic archaeology
• Beyond Mixing-length Theory: a step toward 321D
• Testing the Asteroseismic Mass Scale Using Metal-Poor Stars Characterized with APOGEE and Kepler
• NGC 6819: testing the asteroseismic mass scale, mass loss, and evidence for products of non-standard evolution
• Weighing the local dark matter with RAVE red clump stars
• Surface rotation of Kepler red giant stars
• Bayesian peak bagging analysis of 19 low-mass low-luminosity red giants observed with Kepler
• KIC 8410637: a 408-day period eclipsing binary containing a pulsating red giant
• Internal rotation of the red-giant star KIC 4448777 by means of asteroseismic inversion
• Kepler-432: a red giant interacting with one of its two long period giant planets
• Tidal interactions between binary stars drives lithium production in low-mass red giants
• Asteroseismic signatures of evolving internal stellar magnetic fields
• The K2 Galactic Archaeology Program Data Release 1: Asteroseismic results from Campaign 1
• Deep Learning Classification in Asteroseismology
• A large sample of calibration stars for Gaia: log g from Kepler and CoRoT
• The K2-HERMES Survey: Age and Metallicity of the Thick Disc
• Rapid Rotation of Low-Mass Red Giants Using APOKASC: A Measure of Interaction Rates on the Post-main-sequence
• Old puzzle, new insights: a lithium rich giant quietly burning helium in its core
• Deep Learning Classification in Asteroseismology Using an Improved Neural Network: Results on 15000 Kepler Red Giants and Applications to K2 and TESS Data
• APOKASC-3: The Third Joint Spectroscopic and Asteroseismic catalog for Evolved Stars in the Kepler Fields
• A New Method for the Asteroseismic Determination of the Evolutionary State of Red-Giant Stars
• Masses and Ages for 230,000 LAMOST Giants, via Their Carbon and Nitrogen Abundances
• Study of KIC 8561221 observed by Kepler: an early red giant showing depressed dipolar modes
• The BAyesian STellar Algorithm (BASTA): a fitting tool for stellar studies, asteroseismology, exoplanets, and Galactic archaeology
• Asteroseismic surface gravity for evolved stars
• Chemical Evolution in the Milky Way: Rotation-based ages for APOGEE-Kepler cool dwarf stars
• Revisiting the impact of stellar magnetic activity on the detectability of solar-like oscillations by Kepler
• Mapping the Galactic disk with the LAMOST and Gaia Red clump sample: I: precise distances, masses, ages and 3D velocities of $\sim$ 140000 red clump stars
• A Granulation "Flicker"-based Measure of Stellar Surface Gravity
• Ages and Masses of 0.64 million Red Giant Branch stars from the LAMOST Galactic Spectroscopic Survey
• Suppression of quadrupole and octupole modes in red giants observed by Kepler
• Detection and characterisation of oscillating red giants: first results from the TESS satellite
• Survey of Li-rich giants among Kepler and LAMOST fields: Determination of Li-rich giants Evolutionary Phase
• Probing the deep end of the Milky Way with \emph{Kepler}: Asteroseismic analysis of 854 faint Red Giants misclassified as Cool Dwarfs
• Mass and Age of Red Giant Branch Stars Observed with LAMOST and \emph{Kepler}
• Discovery of post-mass-transfer helium-burning red giants using asteroseismology
• Active red giants: close binaries versus single rapid rotators
• The Age and Interior Rotation of Stars from Asteroseismology
• Benchmark ages for the Gaia benchmark stars
• Super-Nyquist asteroseismology of solar-like oscillators with Kepler and K2 - expanding the asteroseismic cohort at the base of the red-giant branch
• The Physical Parameters of the Retired A Star HD185351
• Atmospheric parameters and chemical properties of red giants in the CoRoT asteroseismology fields
• Asteroseismology of 36 \emph{Kepler} subgiants -- I. Oscillation frequencies, linewidths and amplitudes
• Amplitude and lifetime of radial modes in red giant star spectra observed by Kepler
• A Search for Red Giant Solar-like Oscillations in All Kepler Data
• The insidious boosting of TP-AGB stars in intermediate-age Magellanic Cloud clusters
• Spectroscopic Study of the Open Cluster NGC 6811
• SpaceInn hare-and-hounds exercise: Estimation of stellar properties using space-based asteroseismic data
• A prescription for the asteroseismic surface correction
• Seismic signature of electron degeneracy in the core of red giants: hints for mass transfer between close red-giant companions
• Integrated Mass Loss of Evolved Stars in M4 using Asteroseismology
• Asteroseismology of 1523 misclassified red giants using $\text{Kepler}$ data
• Insights from the APOKASC Determination of the Evolutionary State of Red-Giant Stars by consolidation of different methods
• The masses of retired A stars with asteroseismology: Kepler and K2 observations of exoplanet hosts
• Testing the asymptotic relation for period spacings from mixed modes of red giants observed with the Kepler mission
• A Catalogue of Solar-Like Oscillators Observed by TESS in 120-second and 20-second Cadence
• Validation of the Frequency Modulation technique applied to the pulsating delta Sct - gamma Dor eclipsing binary star KIC 8569819
• Asteroseismic masses of retired planet-hosting A-stars using SONG
• Photospheric diagnostics of core helium burning in giant stars
• Asteroseismic Fingerprints of Stellar Mergers
• Asteroseismic measurement of core and envelope rotation rates for 2006 red giant branch stars
• An Increase in Small-planet Occurrence with Metallicity for Late-type Dwarf Stars in the Kepler Field and Its Implications for Planet Formation
• The PLATO Solar-like Light-curve Simulator: A tool to generate realistic stellar light-curves with instrumental effects representative of the PLATO mission
• Prospects for detecting asteroseismic binaries in Kepler data
• Asteroseismology of 19 low-luminosity red giant stars from Kepler
• KIC 9821622: An interesting lithium-rich giant in the Kepler field
• Seismic performance
• Absolute Magnitudes of Seismic Red Clumps in the Kepler Field and SAGA: the age dependency of the distance scale
• Coefficients of variation for detecting solar-like oscillations
• Evidence for compact binary systems around Kepler red giants
• Convective-core overshoot and suppression of oscillations: Constraints from red giants in NGC6811
• Precise radial velocities of giant stars IX. HD 59686 Ab: a massive circumstellar planet orbiting a giant star in a ~13.6 au eccentric binary system
• Testing the cores of first ascent red-giant stars using the period spacing of g modes
• The Orbital Nature of 81 Ellipsoidal Red Giant Binaries in the Large Magellanic Cloud
• The stellar kinematics in the solar neighborhood from LAMOST data
• Magnetic signatures on mixed-mode frequencies. II. Period spacings as a probe of the internal magnetism of red giants
• The peculiar in-plane velocities in the outer disc of the Milky Way
• The peculiar velocities in the Galactic outer disk--hints of the elliptical disk and the perturbation of the spiral structures
• Fast and Automated Peak Bagging with DIAMONDS (FAMED)
• Star Formation Timescales of the Halo Populations from Asteroseismology and Chemical Abundances
• LAMOST DR1: Stellar parameters and chemical abundances with SP_Ace
• Supervised Ensemble Classification of Kepler Variable Stars
• Calibration of LAMOST Stellar Surface Gravities Using the Kepler Asteroseismic Data
• Red Clump Stars from the LAMOST data I: identification and distance
• Photometry of Very Bright Stars with Kepler and K2 Smear Data
• HD-TESS: An Asteroseismic Catalog of Bright Red Giants within TESS Continuous Viewing Zones
• Evidence for spatially-correlated $Gaia$ parallax errors in the $Kepler$ field
• Lithium Evolution of Giant Stars Observed by LAMOST and Kepler
• Red Clump stars from LAMOST II: the outer disc of the Milky Way
• Lithium abundances in giants as a function of stellar mass: An evidence for He-flash as the source of Li enhancement in low mass giants
• Automated determination of g-mode period spacing of red-giant stars
• Variability in the Massive Open Cluster NGC 1817 from K2: A Rich Population of Asteroseismic Red Clump, Eclipsing Binary, and Main Sequence Pulsating Stars
• Identification, mass and age of primary red clump stars from spectral features derived with the LAMOST DR7
• Precise Masses, Ages of ~1.0 million RGB and RC stars observed by the LAMOST
• Asteroseismology of Eclipsing Binary Stars in the Kepler Era
• Beyond Gaia: Asteroseismic Distances of M giants using Ground-Based Transient Surveys
• Star Cluster Ages in the Gaia Era
• Bayesian hierarchical inference of asteroseismic inclination angles
• From the Inner to Outer Milky Way: A Photometric Sample of 2.6 Million Red Clump Stars
• Asteroseismic masses of four evolved planet-hosting stars using SONG and TESS: resolving the retired A-star mass controversy
• Clumpiness: Time-domain classification of red-giant evolutionary states
• A Unified Exploration of the Chronology of the Galaxy
• The Bayesian Asteroseismology data Modeling pipeline and its application to $K2$ data
• Measuring frequency and period separations in red-giant stars using machine learning
• Modeling Asteroseismic Yields for the Roman Galactic Bulge Time-Domain Survey
• The Swan: Data-Driven Inference of Stellar Surface Gravities for Cool Stars from Photometric Light Curves
• Revisiting the Red-giant Branch Hosts KOI-3886 and $\iota$ Draconis. Detailed Asteroseismic Modeling and Consolidated Stellar Parameters
• A simple method to measure numax for asteroseismology: application to 16,000 oscillating Kepler red giants
• Nonlinear Mixed Modes in Red Giants
• Young and Intermediate-age Distance Indicators
• The discovery of a planetary candidate around the evolved low-mass Kepler giant star HD 175370
• Exploiting the open clusters in the Kepler and CoRoT fields
• Differential asteroseismic study of seismic twins observed by CoRoT; Comparison of HD 175272 with HD 181420
• Red giants evolutionary status determination: the complete Kepler catalog
• Frequency identification and asteroseismic analysis of the red giant KIC 9145955: fundamental parameters and helium core size
• Stellar Parameters of Main Sequence Turn-off Star Candidates Observed with the LAMOST and Kepler
• A binary with a $\delta$~Scuti star and an oscillating red giant: orbit and asteroseismology of KIC9773821
• Robo-AO Kepler Asteroseismic Survey. I. Adaptive optics imaging of 99 asteroseismic Kepler dwarfs and subgiants
• Spectroscopic and Interferometric Measurements of Nine K Giant Stars
• Benchmark tests of transmission spectroscopy using transiting white dwarfs
• A Homogeneous Catalog of Oscillating Solar-Type Stars Observed by the Kepler Mission and a New Amplitude Scaling Relation Including Chromospheric Activity
• Solar-like oscillating stars as standard clocks and rulers for Galactic studies
• Using Asteroseismology to Calibrate the Physical Parameters of Confirmed Exoplanets and Their Evolved Host Stars
• Anomalously low-mass core-He-burning star in NGC 6819 as a post-common-envelope phase product
• Revealing the Fate of Exoplanet Systems: Asteroseismic Identification of Host Star in the Red Clump or Red Giant Branch
• Observational techniques to measure solar and stellar oscillations
• KIC 2568888: To be or not to be a binary
• On the visibility of stellar oscillations
• Stellar atmospheres, atmospheric extension and fundamental parameters: weighing stars using the stellar mass index
• The K2 Galactic Archaeology Program: Overview, target selection and survey properties
• Beyond the Nyquist frequency: Asteroseismic catalog of undersampled Kepler late subgiants and early red giants
• Companions to Kepler giant stars: A long-period eccentric substellar companion to KIC 3526061 and a stellar companion to HD 187878
• A simple model to describe intrinsic stellar noise for exoplanet detection around red giants
• The highest mass Kepler red giants -- II. Spectroscopic parameters, the amplitude-activity relation, and unexpected halo orbits
• Stellar oscillations - the adiabatic case
• Photometric stellar parameters for asteroseismology and Galactic studies
• Decoding the Future of Exoplanets: Asteroseismic Confirmation of Subgiant and Red Giant Hosts
• Mapping the Milky Way with Gaia Bp/Rp spectra-IV: the broken and asymmetric density profile of the stellar disk traced by a large sample of red clumps
• Early Results from APOKASC
• Seismic indices -- a deep look inside evolved stars
• Spectroscopic constraints for low-mass asteroseismic targets
• The SAGA so far: reading the history of the Galaxy with asteroseismology
• Peak Bagging of red giant stars observed by Kepler: first results with a new method based on Bayesian nested sampling
• Hidden oscillations in plain sight: identification of seismically unresolved red-giant asteroseismic binary candidates