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Rotation of Doppler Features in the Solar Photosphere
Les magnetogrammes et Dopplergrammes solaires sont analyses. Les amplitudes de correlation des magnetogrammes et des Dopplergrammes, comme fonction de la latitude et des decalages en longitude, sontExpand
The Current State of Solar Modeling
TLDR
Data from the GONG project and other helioseismic experiments reveal subtle errors in the models, such as an excess in sound speed just beneath the convection zone, which is plausible that the sound-speed differences reflect weak mixing in stellar interiors. Expand
An infall model for the T Tauri phenomenon
An infall model which produces P Cygni type II emission lines is presented. The blueshifted apparent absorption feature in these emission lines is interpreted in this model as the overlap regionExpand
Determination of stellar ages from asteroseismology
This Letter shows that measurements of the stellar analog of the solar five minute oscillations can permit the determination of the radius and age of isolated stars. The key frequencies ofExpand
The Global Oscillation Network Group (GONG) Project
TLDR
The GONG project acquires velocity images from a network of six identical instruments distributed around the world and has achieved a duty cycle of 89 percent and reduced the magnitude of spectral artifacts by a factor of 280 in power, compared with single-site observations. Expand
SOLAR MERIDIONAL CIRCULATION FROM DOPPLER SHIFTS OF THE Fe I LINE AT 5250 Å AS MEASURED BY THE 150-FOOT SOLAR TOWER TELESCOPE AT THE MT. WILSON OBSERVATORY
Doppler shifts of the Fe I spectral line at 5250 A from the full solar disk obtained over the period 1986 to 2009 are analyzed to determine the circulation velocity of the solar surface alongExpand
Spectral Line Selection for HMI: A Comparison of Fe I 6173 Å and Ni I 6768 Å
We present a study of two spectral lines, Fe I 6173 Å and Ni I 6768 Å, that were candidates to be used in the Helioseismic and Magnetic Imager (HMI) for observing Doppler velocity and the vectorExpand
Interpretation of Solar Magnetic Field Strength Observations
This study based on longitudinal Zeeman effect magnetograms and spectral line scans investigates the dependence of solar surface magnetic fields on the spectral line used and the way the line isExpand
Solar models, neutrino experiments, and helioseismology
The event rates and their recognized uncertainties are calculated for eleven solar neutrino experiments using accurate solar models. The same solar models are used to evaluate the frequency spectrumExpand
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