Results of almost simultaneous observations of the differential rotation of the Ca(plus) chromosphere and the photospheric plasma are reported. The observations...
PublicationAn attempt to compare the differential rotation of the Ca/plus/-network with that of the photospheric plasma
PublicationDifferential rotation and meridional motions of sunspots from 1874 to 1902
Position data of sunspot groups from the period 1874-1902 are used to investigate the differential rotation of the Sun and the meridional motions of the...
PublicationDifferential rotation and the SPOT zones
Doppler measurements, using the Capri magnetograph, of the latitudinal fine structure of the solar differential rotation have been carried out. The positions of...
PublicationDifferential rotation of sunspot groups in the period from 1874 through 1976 and changes of the rotation velocity within the solar cycle
An effort is made to determine the differential rotation of the sun on the basis of the complete sample (1874-1976) of the Greenwich Photoheliographic Results...
PublicationEffect of atmospheric extinction on solar radial velocity measurements
Effects of differential extinction across the Earth's atmosphere on astronomical photometry are reviewed. Under the same circumstances when a rotating extended...
PublicationLarge-scale solar motions as determined by Doppler shift measurements using a linear photodiode array
Doppler shifts of the solar Fe line 630.15 nm relative to the terrestrial O2 line 630.2 nm were determined at many positions on the solar disk to investigate...
PublicationNeues über die Sonnenrotation.
PublicationNew information about solar rotation
It is pointed out that the phenomenon of solar rotation is known since the introduction of the telescope into astronomy by Galilei in 1610. Regular measurements...
PublicationRapid rotation of the solar interior
Evidence for the rapid internal rotation of the sun obtained from Doppler shift measurements of the Fraunhofer absorption lines is reported. An improved version...