Abstract
Series of Hα spectra and slit-jaw Hα filtergrams of a quiescent prominence taken at Pic du Midi Observatory on 7 November 1977 are studied. The observations have been digitized by means of an automated Joyce Loebl microdensitometer. The image processing of the Hα filtergrams reveals an internal structure of the prominence consisting of several arches. Series of high-resolution Hα spectra obtained with the slit position located on a selected part of one of the prominence arches have been chosen for Doppler-shift analysis. The obtained time series of the line-of-sight velocity reveal large velocity variations near the periphery of the arch and a strong dependence of the velocity (in sign and magnitude) on the position along the slit. The prominence arch shows also cyclic displacements along the line-of-sight direction implying Alfvén string-mode oscillations.
Similar content being viewed by others
References
Balthasar, H., Stellmacher, G., and Wiehr, E.: 1988, Astron. Astrophys. 204, 286.
Bashkirtsev, V. S., Kobanov, N. I., and Mashnich, G. P.: 1983, Solar Phys. 82, 443.
Engvold, O.: 1972, Solar Phys. 23, 346.
Engvold, O., Wiehr, E., and Wittman, A.: 1980, Astron. Astrophys. 85, 326.
Giogolashvili, M. Sh. and Zhugzhda, Yu. D.: 1982, Solar Phys. 77, 95.
Jensen, E.: 1982, Solar Phys. 77, 109.
Jensen, E., Yi, Z., and Engvold, O.: 1994, Solar Phys. 149, 209.
Joarder, P. S., Nakariakov, V. M., and Roberts B.; 1997, Solar Phys. 173, 81.
Kraichnan, R. H.: 1965, Phys. Fluids 8, 1385.
Liszka, L.: 1970, Solar Phys. 14, 354.
Malville, J. M.: 1968, Solar Phys. 4, 313.
Molowny-Horas, R, Oliver, R., Ballester, J. L., and Baudin, F.: 1997, Solar Phys. 172, 181.
Mouradian, Z. and Leroy, J.-L.: 1977, Solar Phys. 51, 103.
Newton, H. W.: 1934, Monthly Notices Roy. Astron. Soc. 94, 472.
Oliver, R and Ballester, J. L.: 1996, Astrophys. J. 456, 393.
Oliver, R., Ballester, J. L., Hood, A. W., and Priest, E. R.: 1993, Astrophys. J. 409, 809.
Petrov, N. I., Dermendjiev, V. N., and Rompolt, B.: 1998, JOSO Ann. Report 1997, p. 145.
Pettit, E.: 1932, Astrophys. J. 76, 9.
Pojoga, S. and Molowny-Horas, R.: 1999, Solar Phys. 185, 113.
Severny, A. B. and Khokhlova, V. L.: 1953, Izv. Krymsk. Astrofiz. Obs. 10,9.
Solov'ev, A. A.: 1985, Soln. Dannye No. 9, 65.
Tandberg-Hanssen, E.: 1995, The Nature of Solar Prominences, Kluwer Academic Publishers, Dordrecht, Holland, p. 95.
Ten Bruggencate, P. and Elste, G.: 1958, Nature 182, 1154.
Tomson, W. T. and Schmieder, B.: 1991, Astron. Astrophys. 243, 501.
Wiehr, E., Stellmacher, G., and Balthasar, H.: 1984, Solar Phys. 94, 285.
Yi, Z.: 1992, Doctoral Thesis, University of Oslo.
Yi, Z. and Engvold, O.: 1991, Solar Phys. 134, 275.
Yi, Z., Engvold, O., and Keil, S. L.: 1991, Solar Phys. 132, 63.
Zirker, J. B., Engvold, O., and Yi, Z.: 1994, Solar Phys. 150, 81.
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Dermendjiev, V., Petrov, N., Detchev, M.T. et al. Line-of-Sight Velocity Fluctuations of a Quiescent Prominence. Solar Physics 202, 99–107 (2001). https://doi.org/10.1023/A:1011813114259
Issue Date:
DOI: https://doi.org/10.1023/A:1011813114259