Solar oscillations

Research output: Chapter in Book/Report/Conference proceedingConference contribution

11 Scopus citations

Abstract

In recent years solar oscillations have been studied in great detail, both observationally and theoretically; so, perhaps, the Sun currently is the best understood pulsating star. The observational studies include long, almost uninterrupted series of oscillation data from the SOHO spacecraft and ground-based networks, GONG and BiSON, and more recently, extremely high-resolution observations from the Hinode mission. These observational data cover the whole oscillation spectrum, and have been extensively used for helioseismology studies, providing frequencies and travel times for diagnostics of the internal stratification, differential rotation, zonal and meridional flows, subsurface convection and sunspots. Together with realistic numerical simulations, they lead to better understanding of the excitation mechanism and interactions of the oscillations with turbulence and magnetic fields. However, many problems remain unsolved. In particular, the precision of the helioseismology measurements is still insufficient for detecting the dynamo zone and deep routes of sunspots. Our knowledge of the oscillation physics in strong magnetic field regions is inadequate for interpretation of MHD waves in sunspots and for sunspot seismology. A new significant progress in studying the solar oscillations is expected from the Solar Dynamics Observatory scheduled for launch in 2009.

Original languageEnglish (US)
Title of host publicationStellar Pulsation
Subtitle of host publicationChallenges for Theory and Observation - Proceedings of the International Conference
Pages547-559
Number of pages13
DOIs
StatePublished - 2009
Externally publishedYes
EventInternational Conference on Stellar Pulsation: Challenges for Theory and Observation - Santa Fe, NM, United States
Duration: May 31 2009Jun 5 2009

Publication series

NameAIP Conference Proceedings
Volume1170
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Other

OtherInternational Conference on Stellar Pulsation: Challenges for Theory and Observation
Country/TerritoryUnited States
CitySanta Fe, NM
Period5/31/096/5/09

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

Keywords

  • Helioseismology
  • Solar interior
  • Solar oscillations

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