45 citations · 152 across the 8 of their papers we have counts for
7 papers · 1 filter
Latitudinal differential rotation in the solar analogues 16 Cyg A and B
M. Bazot, O. Benomar, J. Christensen-Dalsgaard +5
Asteroseismology has undergone a profound transformation as a scientific field following the CoRoT and Kepler space missions. The latter is now yielding the first measurements of l…
Starspot rotation rates vs. activity cycle phase: Butterfly diagrams of Kepler stars are unlike the Sun's
M. B. Nielsen, L. Gizon, R. H. Cameron +1
During the solar magnetic activity cycle the emergence latitudes of sunspots change, leading to the well-known butterfly diagram. This phenomenon is poorly understood for other sta…
Asymmetry of line profiles of stellar oscillations measured by Kepler for ensembles of solar-like oscillators: impact on mode frequencies and dependence on effective temperature
O. Benomar, Mjo. Goupil, K. Belkacem +7
Oscillation properties are usually measured by fitting symmetric Lorentzian profiles to the power spectra of Sun-like stars. However the line profiles of solar oscillations have be…
Limits on radial differential rotation in Sun-like stars from parametric fits to oscillation power spectra
M. B. Nielsen, H. Schunker, L. Gizon +2
Rotational shear in Sun-like stars is thought to be an important ingredient in models of stellar dynamos. Thanks to helioseismology, rotation in the Sun is characterized well, but…
Constraining differential rotation of Sun-like stars from asteroseismic and starspot rotation periods
M. B. Nielsen, H. Schunker, L. Gizon +1
In previous work we identified six Sun-like stars observed by Kepler with exceptionally clear asteroseismic signatures of rotation. Here, we show that five of these stars exhibit s…
Rotational splitting as a function of mode frequency for six Sun-like stars
M. B. Nielsen, L. Gizon, H. Schunker +1
Asteroseismology offers the prospect of constraining differential rotation in Sun-like stars. Here we have identified six high signal-to-noise main-sequence Sun-like stars in the K…
Kepler White Paper: Asteroseismology of Solar-Like Oscillators in a 2-Wheel Mission
W. J Chaplin, H. Kjeldsen, J. Christensen-Dalsgaard +53
We comment on the potential for continuing asteroseismology of solar-type and red-giant stars in a 2-wheel Kepler Mission. Our main conclusion is that by targeting stars in the ecl…