천문학회지 (Journal of The Korean Astronomical Society)

  • 제36권2호
  • /
  • Pages.67-72
  • /
  • 2003
  • /
  • 1225-4614(pISSN)
  • /
  • 2288-890X(eISSN)
한국천문학회 (The Korean Astronomical Society)
권호 표지
DOI QR코드

DOI QR Code

SOLAR SHORT-PERIOD OSCILLATIONS EXCITED BY A SMOOTH FORCE

  • 발행 : 2003.06.01
PDF 다운로드
⟨ 이전 논문 다음 논문 ⟩

초록

The basic objective of helioseismology is to determine the structure and the dynamics of the Sun by analysing the frequency spectrum of the solar oscillations. Accurate frequency measurements provide information that enables us to probe the solar interior structure and the dynamics. Therefore the frequency of the solar oscillation is the most fundamental and important information to be extracted from the solar oscillation observation. This is why many efforts have been put into the development of accurate data analysis techniques, as well as observational efforts. To test one's data analysis method, a realistic artificial data set is essential because the newly suggested method is calibrated with a set of artificial data with predetermined parameters. Therefore, unless test data sets reflect the real solar oscillation data correctly, such a calibration is likely incomplete and a unwanted systematic bias may result in. Unfortunately, however, commonly used artificial data generation algorithms insufficiently accommodate physical properties of the stochastic excitation mechanism. One of reason for this is that it is computaionally very expensive to solve the governing equation directly. In this paper we discuss the nature of solar oscillation excitation and suggest an efficient algorithm to generate the artificial solar oscillation data. We also briefly discuss how the results of this work can be applied in the future studies.

키워드

참고문헌

  1. PASJ v.27 Nonadiabatic nonradial oscillations - an application to the five-minute oscillation of the Sun Ando,H.;Osaki,Y.
  2. PASJ v.29 The influence of the chromosphere and corona on the solar atmospheric oscillations Ando,H.;Osaki,Y.
  3. RhRvL. v.90 Does the Sun shine by pp or CNO fusion reactions? Bahcall,J.N.;Gonzalez-Garcia,M.C.;Pena-Garay,C.
  4. A&A v.311 Temporal characteristics of solar p-modes Baudin,F.;Gabriel,A.;Gibert,D.;Palle,P.L.;Regulo,C.
  5. MNRAS v.287 The observation and simulation of stochastically excited solar Pmodes Chaplin,W.J.;Elsworth,Y.;Howe,R.;Isaak,G.R.;McLeod,C.P.;Miller,B.A.;New,R. https://doi.org/10.1093/mnras/287.1.51
  6. A&A v.339 Are solar granules the only source of acoustic oscillations? Foglizzo,T.
  7. ApJ v.212 Solar seismology. Ⅱ-The stochastic excitation of the solar p-modes by turbulent convection Goldreich,P.;Keeley,D. https://doi.org/10.1086/155043
  8. ApJ v.326 The interaction of acoustic radiation with turbulence Goldreich,P;Kumar,P. https://doi.org/10.1086/166108
  9. ApJ v.363 Wave generation by turbulent convection Goldreich,P;Kumar.P. https://doi.org/10.1086/169376
  10. ApJ v.424 Excitation of solar p-modes Goldreich,P;Murray,N.;Kumar,P. https://doi.org/10.1086/173904
  11. ARA&A v.29 Scismic observations of the solar interior Gough,D.;Toomre,J. https://doi.org/10.1146/annurev.aa.29.090191.003211
  12. ApJ v.328 Distribution functions for the time-averaged energies of stochastically excited solar p-modes Kumar,P.;Franklin,J.;Goldreich,P. https://doi.org/10.1086/166345
  13. JKAS v.34 Transonic magnetohydrodynamic turbulence Lee,H.;Ryu,D.;Kim,J.;Jones,T.W.
  14. ApL v.7 A New description of the solar five-minute oscillation Leibacher,J.;Stein,R.
  15. ApJ v.135 Velocity fields in the solar atmosphere. Ⅰ. preliminary report Leighton,R.;Noyes,R.;Simon,G. https://doi.org/10.1086/147285
  16. Seismology of the Sun and Sun-like Stars The excitation and damping of solar oscillations Libbrecht,K.;E.J.Rolfe(ed.)
  17. ApJ v.334 Solar p-mode phenomenology Libbrecht,K. https://doi.org/10.1086/166855
  18. Nature v.323 The excitation and damping of solar oscillations Libbrecht,K.;Popp,B.;Kaufman,J. https://doi.org/10.1038/323235a0
  19. Proc. Roy. Soc. v.A211 On sound generated aerodynamically. Ⅰ. general theory Lighthill,M.
  20. ApJ v.423 On sound generation by turbulent convection : A new look at old results Musielak,Z.;Rosner,R.;Stein,R.;Ulmschneider,P. https://doi.org/10.1086/173825
  21. ApJ v.559 Anticorrelation coupleing p-modes Roth,M. https://doi.org/10.1086/322363
  22. Astron. Astrophys. Suppl. v.107 Generation of artificial helioseismic time-series Schou,J.;Brown,T.
  23. JKAS v.34 The relative sunspot numbers in 2000 Sim,K.J.;Moon,Y.J.;Lee,C.W.;Chang,B.H.;Woo,H.S.
  24. Solar Phys. v.2 Generation of acoustic and gravity waves by turbulence in an isothermal stratified atmosphere Stein,R.
  25. ApJ v.162 The five-minute oscillations on the solar surface Ulrich,R. https://doi.org/10.1086/150731