The first data of a SOHO-GOLF type instrument are presented. The slopes of the solar sodium lines profiles D1 and D2 and their variations with the excursion of...

Rotational splitting measurements of less than 5 p-modes are calculated using different sources of data. For l=1, data obtained from years 1981 to 1985 is used...

Using a resonant scattering spectrophotometer the authors measured the radial velocity of the Sun at the K I 769.9 nm line with very high resolution and...

Data from solar line of sight velocity measurements are presented to demonstrate the existence of a synodic signal with a 6.5 m/sec amplitude. Recordings of...

Doppler velocity data are used to study solar cycle variation of the frequencies of solar acoustic oscillations from 1977 to 1988. The results show a clear...

A statistical analysis of the frequency spectrum of 85 days of data obtained from integral solar velocity signals, has shown that significant signals exist in...

Low degree l=0-2 solar p-modes were detected with the SLOT instruments at Izana and Baja California. The main source of noise for these ground based...

Since 1984 the measurements of a quadruple photometer sited at the Observatorio del Teide (Izana, Tenerife) made it possible to identify the p-mode luminosity...

If such external influences as the impact of a comet on the solar surface could destroy or mask the coherence of observed solar oscillations, the scope and...