Astrophysical: Solar oscillations

  • Publication
    Multidimensional energy transfer by radiation in the solar atmosphere
    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...
  • Publication
    Observations of solar p-modes with L of not greater than 5
    Results are presented for the sun's radial velocity in integrated sunlight. A resonant scattering spectrometer has been used to determine the frequencies and...
  • Publication
    Observations of the phase differences between irradiances and velocity for low-degree solar acoustic modes
    Irradiance measurements from the IPHIR instrument flown on the Phobos 2 mission to Mars are used to derive phase differences and gains between broadband...
  • Publication
    On the correlation of power in sunspot umbral oscillations with continuum brightness
    We analyze time sequences of spectral lines formed at the photospheric level in order to study the correlation of umbral oscillations with continuum brightness...
  • Publication
    On the k-mechanism and the multidimensional Eddington approximation
    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...
  • Publication
    Oscillatory behaviour in sunspot umbrae
    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...
  • Publication
    Phase difference between irradiance and velocity in low degree solar p-modes
    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)...
  • Publication
    Phase differences between irradiance and velocity low degree solar acoustic modes revisted
    Sine 1984, simultaneous observations of irradiance and velocity solar acoustic modes, have been carried out by several authors in order to measure the phase...
  • Publication
    Power spectra comparison between GOLF and MDI velocity observations.
    Not Available