Abstract
We studied the properties and proper motions of Ellerman bombs (EBs) around a sunspot in a mature active region using high-resolution off-band Hα filtergrams together with nearly simultaneous magnetograms. Sixty-four percent of the EBs (class I) did not correspond accurately to enhanced magnetic field elements while the rest corresponded well to such elements (class II), which all were moving magnetic features (MMFs). We studied the lifetimes, shapes and dimensions, contrasts and time profiles of the EBs. These properties were essentially the same for both classes, in agreement with previous authors. Class I EBs did not move but class II EBs tracked the MMFs well, with horizontal proper motions up to a maximum of 1.1 km s−1 and their velocity pattern was similar to the velocity pattern of the MMFs.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
Brickhouse, N. S. and Labonte, B. J.: 1988, Solar Phys. 115, 43.
Bruzek, A.: 1972, Solar Phys. 26, 94.
Dara, H. C., Alissandrakis, C. E., Zachariadis, Th. G., and Georgakilas, A. A.: 1997, Astron. Astrophys. 322, 653.
Ding, M. D., Hénoux, J.-C., and Fang, C.: 1998, Astron. Astrophys. 332, 761.
Denker, C.: 1997, Astron. Astrophys. 323, 599.
Denker, C., de Boer, C. R., Volkmer, R., and Kneer, F.: 1995, Astron. Astrophys. 296, 567.
Kitai, R.: 1983, Solar Phys. 87, 135.
Kitai, R. and Muller, R.: 1984, Solar Phys. 90, 303.
Koval, A. N.: 1967, Izv. Krymsk. Astrofiz. Obs. 34, 278.
Koval, A. N. and Severny, A. B.: 1970, Solar Phys. 11, 276.
Kurokawa, H., Kawaguchi, I., Funakoshi, Y., and Nakai, Y.: 1982, Solar Phys. 79, 77.
Lee, J. W.: 1992, Solar Phys. 139, 267.
Mohler, O. C. and Dodson, H. W.: 1958, Astrophys. J. 63, 309.
Muller, R. and Mena, B.: 1987, Solar Phys. 112, 295.
Nindos, A. and Zirin, H.: 1998, Solar Phys. 179, 253.
November, L. J. and Simon, G. W.: 1988, Astrophys. J. 333, 427.
Payne, T. E. W.: 1993, Ph.D. Thesis, New Mexico State University.
Rust, D. M.: 1968, in K. O. Kiepenheuer (ed.), 'Structure and Development of Solar Active Regions', IAU Symp. 35, 77.
Severny, A. B.: 1965, in de C. Jager (ed.), The Solar Spectrum, D. Reidel Publ. Co., Dordrecht, Holland, p. 21.
Severny, A. B.: 1968, in Y. Ohman (ed.), 'Mass Motions in Solar Flares and Related Phenomena', Nobel Symp. 9, 109.
Wang, H. and Zirin, H.: 1992, Solar Phys. 140, 41.
Wang, H., Tang, F., Zirin, H., and Wang, J.: 1996, Solar Phys. 165, 223.
Zachariadis, Th. G., Alissandrakis, C. E., and Banos, G.: 1987, Solar Phys. 108, 227.
Zhang H., Ai, G., Wang, H., Zirin, H., and Patterson, A.: 1992, Solar Phys. 140, 307.
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Nindos, A., Zirin, H. Properties and Motions of Ellerman Bombs. Solar Physics 182, 381–392 (1998). https://doi.org/10.1023/A:1005041920869
Issue Date:
DOI: https://doi.org/10.1023/A:1005041920869