Vertical distribution of the power of short- and long-period oscillations in a sunspot and in surrounding magnetic elements

Cosmic Research

Volumn 47, Issue 4, 2009, Pages 279-286

  Efremov, V I ^a   Parfinenko, L D ^a   Soloviev, A A ^a  

^a RUSSIAN ACADEMY OF SCIENCES   (Russian Federation)

Author keywords

[No Author keywords available]

Indexed keywords

EID: 70350001994     PISSN: 00109525     EISSN: None     Source Type: Journal    
DOI: 10.1134/S0010952509040030     Document Type: Article

References (25)

1. Zhao, J., Kosovichev, A.G., and Duval, T.L., Investigation of Mass Flows beneath a Sunspot by Time-Distance Helioseismology, Astrophys. J., 2001, vol. 557, pp. 384-388.
2. Kosovichev, A.G., Subsurface Characteristics of Sunspots, Adv. Space Res., 2002, vol. 38, no. 3/4, pp. 186-191.
3. Thomas, J.H., Cram, L.E., and Ney, A.H., Five-Minute Oscillations as a Subsurface Probe of Sunspot Structure, Nature, 1982, vol. 297, p. 485.
4. Thompson, M.J., Solar Interior: Helioseismology and the Sun's Interior, Astronomy & Geophysics, 2004, vol. 45, issue 4, pp. 4.21-4.25.
5. Zhugzhda, Y.D. Seismology of Sunspot Atmosphere, Solar Physics, 1983, vol. 251, Jan., pp. 501.
6. Zhukov, V.I., Oscillations on the Sun in Regions with a Vertical Magnetic Field. I. Sunspot Umbral Oscillations, Astron. Astrophys., 2002, vol. 386, pp. 653-657.
7. Balthasar, H., Oscillations in Sunspots Observed in the Near Infrared, Solar Physics, 2003, vol. 218, Issue 1, pp. 85-97.
8. Solov'ev, A.A. and Nagovitsyn, Yu.A., Long-Period Oscillations of Solar Flares, in Trudy konferentsii: Solnechnaya aktivnost' kak faktor kosmicheskoi pogody (Proc. of Conf.: Solar Activity as a Factor of Space Weather), St. Petersburg: GAO RAN, 2005, pp. 593-598.
9. Nagovitsyn, Yu.A., Torsional Oscillations and Effective Depth of Solar Flares, Pis'ma Astron. Zh., 1997, vol. 23, nos. 11-12, pp. 859-862.
10. Borzov, V.V., Vialshin, G.F., and Nagovitsyn, Yu.A., Variations of the Field Strengths in the Sunspots of 1982 June and July Groups and 1984 June Group, Contrib. Astr. Obs. Skalnate Pleso, 1986, vol. 15, pp. 75-85.
11. Gelfreikh, G.B., Nagovitsyn, Yu.A. and Nagovitsyna, E. Yu., Quasi-Periodic Oscillations of the Radio Emission of the Solar Plasma Structures and Their Nature, Publ. Astron. Soc. Japan, 2006, vol. 58, no. 1, pp. 29-35.
12. Efremov, V.I., Parfinenko, L.D., and Solov'ev, A.A., Investigation of Long-Periodic Oscillations of Radial Velocities in a Sunspot and near It at Different Levels of the Photosphere, Astron. Zh., 2007, vol. 84, no. 5, pp. 450-460.
13. Efremov, V.I., Parfinenko, L.D., and Solov'ev, A.A., A Method for Direct Measurement of Doppler Shifts and Zeemann Effect Using Optical Digital Spectrograms of the Sun and Long-Periodic Oscillations of Solar Flares, Opt. Zh., 2008, vol. 75, no. 3, pp. 9-17.
14. Weihr, E. and Kneer, F., Spectroscopy of the Solar Photosphere with High Spatial Resolution, Astron. Astroph., 1988, vol. 195, pp. 310-314.
15. Koen, C., Significance Testing of Periodogram Ordinates, Astrophys. J., 1990, Part 1, vol. 348, pp. 700-702.
16. Horne, J.H. and Baliunas, S.L., A Prescription for Period Analysis of Unevenly Sampled Time Series, Astrophys. J., 1986, Part 1, vol. 302, pp. 757-763.
17. Soloviev, A.A., Energy Properties of Sunspots, Solnechnye Dannye, 1976, no. 4, p. 54.
18. Soloviev, A.A., Torsional Oscillations of Sunspots, Solnechnye Dannye, 1984, no. 1, pp. 73-78.
19. Soloviev, A.A., Primitive Energy Model of Sunspot, Astron. Zh., 1984, vol. 61, no. 4, pp. 764-770.
20. Soloviev, A.A., Theoretical Studies of Magnetic Structure of Sunspots, Doctoral (Fiz.-Mat.) Dissertation, Moscow: IZMIRAN, 1992.
21. Soloviev, A.A. and Kirichek, E.A., Sunspot as a Solitary Magnetic Structure: Stability and Oscillations, Astrofizicheskii Byulleten', 2008, vol. 63, no. 2, pp. 180-192.
22. Kshevetskii, S.P. and Soloviev, A.A., Excitation of Internal Gravity Waves above Sunspots, Astron. Zh., 2008, vol. 85, no. 4, p. 857.
23. Kobanov, V.I., On Spatial Characteristics of Five-Minute Oscillations in the Sunspot Umbra, Solar Physics, 1990, vol. 125, Jan., pp. 25-30.
24. Rimmele, T.R., Sun Center Observations of the Evershed Effect, Astrophys. J., 1995, vol. 445, p. 511.
25. Kobanov, N.I., and Makarchik, D.V., Height Inversion of Evershed Flow and Velocity Oscillations, ASP Conference series, 2003, vol. 286, p. 251.