Oscillation spectra with regular patterns Bill Chaplin, School of Physics & Astronomy University of Birmingham IAU Symposium 301, 2013 August 20

Ah! signatures of terrestrial seismology

Pulsations in the HR diagram Aerts, Christensen-Dalsgaard & Kurtz (2009) 

CoRoT ground-based telescopes asteroseismic solar-type & red-giant targets

asteroseismic solar-type & red-giant targets Kepler asteroseismic solar-type & red-giant targets

CoRoT Non-radial oscillations in red giants De Ridder et al. 2009, Nature 459, 398

Asteroseismic KOI ensemble High-quality solar-like oscillations spectra of Kepler Objects of Interest

Helioseismology: Sun as a star Detection of overtone spacing, low-degree p modes Courtesy T. Roca Cortés

Solar-like oscillations in  Boo Equivalent width observations of Balmer lines Kjeldsen et al., 1995, AJ,109, 1313

Kepler’s “best in class” The A-component of the solar-type binary 16 Cyg

Regularity in  Scuti spectra? Analysis of CoRoT observations of HD174936 Garcia Hernandez et al., 2009, A&A, 506, 79

Regularity in  Scuti spectra? Analysis of CoRoT observations of HD174936 Garcia Hernandez et al., 2009, A&A, 506, 79

Guilty as charged…

Toward automated peak-bagging of Sun-like stars Homogeneous analysis of 61 solar-type stars Appourchaux et al., 2012, A&A, 543, A54

Modelling and fitting “background” Instrumental, activity, granulation, shot noise CoRoT HD169392A Mathur et al., 2013, A&A, 549, 12

Kepler’s “best in class” The A-component of the solar-type binary 16 Cyg

The prototypical “Bl**dy F star” HD49933 F-type star syndrome The prototypical “Bl**dy F star” HD49933 1200 1400 1600 1800 2000 2200 2400 Frequency (Hz) Appourchaux et al., 2008, A&A, 488, 705 Benomar et al., 2009, A&A, 507, L13

F-type star syndrome Bl**dy F stars F-type star HD49933 G-type star 16 Cyg A F-type star HD49933

Bayesian vs. Frequentist Humour Which one are you? Bayesian vs. Frequentist Humour … and the nights flew by…

Acoustic glitches The Sun Houdek & Gough MNRAS, 2007, 375, 861 MNRAS, 2011, 418, 1217

Acoustic glitches CoRoT Results Red giant HR 7349 Miglio et al., 2010, A&A, 520, L6 CoRoT Results The F-type star HD49933 Mazumdar et al., 2012, A&A, 540, A31

Acoustic glitches Kepler results Examples: three solar-type stars Mazumdar et al., 2013, ApJ, submitted

Buoyancy glitches CoRoT results B3V star HD 50320 Degroote et al., 2010, Nature, 464, 259

Sequence of 1M stars Increasing radius main sequence main sequence sub giant Increasing radius sub giant red giant

Mixed modes and avoided crossings in sub-giants Coupled oscillators KIC 6442183 Deheuvels & Michel, 2011, A&A, 535, A91 See: Benomar et al., 2012, ApJ, 745, L33

Period spacings in red giants Mosser et al., 2012, A&A, 540, 143

Automated analysis of red-giant oscillation spectra Frequency  (Hz) Automated analysis of red-giant oscillation spectra 130 120 Stello et al., 2013, ApJ, 765, L41 Mosser et al., 2011, A&A, 525, L9 110 100 20 40 60 1/ mod P (Hz)

g-mode period spacings sdB stars Reed et al., 2011 MNRAS, 414, 2885

Period spacings in red giants inertia ratio Christensen-Dalsgaard, 2011, arXiv:1110.5012

PLATO

End

Automated analysis of red-giant oscillation spectra Frequency  (Hz) Stello et al., 2013, ApJ, 765, L41 Mosser et al., 2011, A&A, 525, L9 1/ mod P (Hz)

Internal rotation of a subgiant Core rotates five-times faster than surface Deheuvels et al., 2012, ApJ, 756, 19

Kepler-50 and Kepler-65 Two stars with multiple small planets Chaplin et al., 2013, ApJ, 766, 101

Spin-orbit alignment Kepler 50 and 65: stars with multiple small planets Chaplin et al., 2013, ApJ, 766, 101