High degree solar oscillations in 3D numerical simulations

Dali Georgobiani, Robert F. Stein, Åke Nordlund, Alexander G. Kosovichev, Nagi N. Mansour

Research output: Contribution to journalConference articlepeer-review

2 Scopus citations


Realistic 3D numerical simulations of solar convection are capable of reproducing the excitation of solar oscillations by turbulent convection. Continuing our investigations, we calculate velocity power spectra for high angular degree modes that have their lower turning points within the shallow simulation domain. We find excellent agreement between the observed SOHO/MDI and simulated power spectra in frequency, amplitude and mode width. However, surprisingly at lower frequencies, the noise level in the model is much higher than in the Sun.

Original languageEnglish (US)
Pages (from-to)267-270
Number of pages4
JournalEuropean Space Agency, (Special Publication) ESA SP
Issue number559
StatePublished - 2004
Externally publishedYes
EventSOHO 14/GONG 2004 Workshop - Helio- and Asteroseismology: Towards a Golden Future - New Haven, CT, United States
Duration: Jul 12 2004Jul 16 2004

All Science Journal Classification (ASJC) codes

  • Aerospace Engineering
  • Space and Planetary Science


  • Convection
  • Methods:numerical
  • Stars:oscillations


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