SOLVING THE MODE IDENTIFICATION PROBLEM IN ASTEROSEISMOLOGY OF F STARS OBSERVED WITH KEPLER

Asteroseismology of F-type stars has been hindered by an ambiguity in identification of their oscillation modes. The regular mode pattern that makes this task trivial in cooler stars is masked by increased line widths. The absolute mode frequencies, encapsulated in the asteroseismic variable ϵ, can help solve this impasse because the values of ϵ implied by the two possible mode identifications are distinct. We find that the correct ϵ can be deduced from the effective temperature and the line widths and we apply these methods to a sample of solar-like oscillators observed with Kepler.

[1]  T. Appourchaux,et al.  Oscillation mode frequencies of 61 main-sequence and subgiant stars observed by Kepler , 2012, 1204.3147.

[2]  P. Quirion,et al.  Accurate parameters of 93 solar-type Kepler targets , 2012, 1203.0611.

[3]  T. Appourchaux,et al.  A UNIFORM ASTEROSEISMIC ANALYSIS OF 22 SOLAR-TYPE STARS OBSERVED BY KEPLER , 2012, 1202.2844.

[4]  S. D. Kawaler,et al.  University of Birmingham Asteroseismology of the solar analogs 16 Cyg A and B from Kepler observations , 2012 .

[5]  H. M. Antia,et al.  Oscillation mode linewidths of main-sequence and subgiant stars observed by Kepler , 2011, 1112.3295.

[6]  Travis S. Metcalfe,et al.  A REVISED EFFECTIVE TEMPERATURE SCALE FOR THE KEPLER INPUT CATALOG , 2011, 1110.4456.

[7]  P. Gaulme,et al.  ASTEROSEISMIC DIAGRAMS FROM A SURVEY OF SOLAR-LIKE OSCILLATIONS WITH KEPLER , 2011, 1110.1375.

[8]  Hans Kjeldsen,et al.  CALCULATING ASTEROSEISMIC DIAGRAMS FOR SOLAR-LIKE OSCILLATIONS , 2011, 1109.3455.

[9]  D. Stello.  Non-radial modes in cool stars , 2011, 1107.1311.

[10]  P. Gaulme,et al.  Global asteroseismic properties of solar-like oscillations observed by Kepler: a comparison of complementary analysis methods , 2011, 1105.0571.

[11]  S. D. Kawaler,et al.  Ensemble Asteroseismology of Solar-Type Stars with the NASA Kepler Mission , 2011, Science.

[12]  J. Ridder,et al.  Amplitudes and lifetimes of solar-like oscillations observed by CoRoT* Red-giant versus main-sequence stars , 2011, 1102.1896.

[13]  T. Campante,et al.  Bayesian peak-bagging of solar-like oscillators using MCMC: a comprehensive guide , 2010, 1101.0084.

[14]  Y. Elsworth,et al.  The universal red-giant oscillation pattern; an automated determination with CoRoT data , 2010, 1011.1928.

[15]  D. Buzasi,et al.  ASTEROSEISMOLOGY OF RED GIANTS FROM THE FIRST FOUR MONTHS OF KEPLER DATA: GLOBAL OSCILLATION PARAMETERS FOR 800 STARS , 2010, 1010.4566.

[16]  J. Ridder,et al.  Red-giant seismic properties analyzed with CoRoT , 2010, 1004.0449.

[17]  M. Martic,et al.  A MULTI-SITE CAMPAIGN TO MEASURE SOLAR-LIKE OSCILLATIONS IN PROCYON. II. MODE FREQUENCIES , 2010, 1003.0052.

[18]  T. Bedding,et al.  Scaled oscillation frequencies and echelle diagrams as a tool for comparative asteroseismology , 2010, 1001.5038.

[19]  T. Owen,et al.  KEPLER MISSION DESIGN, REALIZED PHOTOMETRIC PERFORMANCE, AND EARLY SCIENCE , 2010, 1001.0268.

[20]  J. De Ridder,et al.  SOLAR-LIKE OSCILLATIONS IN LOW-LUMINOSITY RED GIANTS: FIRST RESULTS FROM KEPLER , 2010, 1001.0229.

[21]  G. Handler,et al.  Kepler Asteroseismology Program: Introduction and First Results , 2009, 1001.0139.

[22]  P. Gaulme,et al.  A fresh look at the seismic spectrum of HD49933: analysis of 180 days of CoRoT photometry , 2009, 0910.3060.

[23]  Ian W. Roxburgh,et al.  Narrow frequency-windowed autocorrelations as a diagnostic of solar-like stars , 2009 .

[24]  P. Gaulme,et al.  Solar-like oscillations in HD 181420: data analysis of 156 days of CoRoT data , 2009 .

[25]  B. Mosser,et al.  On detecting the large separation in the autocorrelation of stellar oscillation times series , 2009, 0909.0782.

[26]  P. Gaulme,et al.  Solar-like oscillations with low amplitude in the CoRoT target HD 181906 , 2009, 0907.0608.

[27]  W. Chaplin,et al.  Mode lifetimes of stellar oscillations - Implications for asteroseismology , 2009, 0905.1722.

[28]  D. Guenther,et al.  The nature of p-modes and granulation in HD 49933 observed by CoRoT , 2008, 0811.4686.

[29]  W. W. Weiss,et al.  On the detection of Lorentzian profiles in a power spectrum: a Bayesian approach using ignorance priors , 2008, 0811.3345.

[30]  C. Aerts,et al.  Relativistic Spin Precession in the Double Pulsar , 2008, Science.

[31]  F. Feroz,et al.  MultiNest: an efficient and robust Bayesian inference tool for cosmology and particle physics , 2008, 0809.3437.

[32]  H. Kjeldsen,et al.  CoRoT sounds the stars: p-mode parameters of Sun-like oscillations on HD 49933 , 2008 .

[33]  Hans Kjeldsen,et al.  TO APPEAR IN APJ LETTERS Preprint typeset using LATEX style emulateapj v. 10/09/06 CORRECTING STELLAR OSCILLATION FREQUENCIES FOR NEAR-SURFACE EFFECTS , 2022 .

[34]  Jørgen Christensen-Dalsgaard,et al.  ASTEC—the Aarhus STellar Evolution Code , 2007, 0710.3114.

[35]  A. Gautschy,et al.  On the Theoretical Period-Luminosity Relation of Cepheids , 1998, astro-ph/9801242.

[36]  Michael Thompson,et al.  On solar p-mode frequency shifts caused by near-surface model changes , 1997 .

[37]  S. M. Chitre,et al.  The Current State of Solar Modeling , 1996, Science.

[38]  J. Christensen-Dalsgaard,et al.  Solar oscillation frequencies and the equation of state , 1988, Nature.

[39]  M. Tassoul,et al.  Asymptotic approximations for stellar nonradial pulsations , 1980 .

[40]  Y. Osaki.  Hydrodynamic and magnetodynamic problems in the sun and stars , 1986 .