Both linear and nonlinear analysis are used to gain a better understanding of the effects of multi-dimensional transfer of energy by radiation in spatially...

Results are presented for the sun's radial velocity in integrated sunlight. A resonant scattering spectrometer has been used to determine the frequencies and...

Irradiance measurements from the IPHIR instrument flown on the Phobos 2 mission to Mars are used to derive phase differences and gains between broadband...

We analyze time sequences of spectral lines formed at the photospheric level in order to study the correlation of umbral oscillations with continuum brightness...

The suitability of the Eddington approximation as a theoretical framework for the study of the possibility of a k-like overstability mechanism as the driving...

A set of series of spectra of high spectral resolution corresponding to the same umbra on several days, is used to study the oscillations related to evolution...

Phase differences between irradiance and full-disk velocity variations are derived for l = 0, 1, and 2 modes with order ranging from 11 up to 30 (1.8-4.3 mHz)...

Sine 1984, simultaneous observations of irradiance and velocity solar acoustic modes, have been carried out by several authors in order to measure the phase...

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