Hostname: page-component-848d4c4894-wg55d Total loading time: 0 Render date: 2024-05-13T04:42:03.078Z Has data issue: false hasContentIssue false
  • English
  • Français

Chromospheric explosions and satellite sunspots∗

Published online by Cambridge University Press:  14 August 2015

David M. Rust
David M. Rust*
Affiliation:
Mount Wilson and Palomar Observatories, Pasadena, Calif., U.S.A.

Abstract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

Observations of the longitudinal component of the photospheric magnetic fields near sunspots imply that surges and Ellerman bombs occur at neutral points in the magnetic fields (i.e. |B|=0) in the chromosphere. The neutral points appear above satellite sunspots, which are defined as polarity reversals (in B||) near the edges of large-spot penumbrae. A series of magnetograph observations shows a point of satellite polarity vanishing during a period of almost continuous surge activity. The lost magnetic energy is comparable to the energy release evidenced by the surge.

Type
Part I: General Development of an Active Region
Information
Symposium - International Astronomical Union , Volume 35: Structure and Development of Solar Active Regions , 1968 , pp. 77 - 84
Copyright
Copyright © Reidel 1968 

References

Bumba, V. (1960) Publ. Crim. Astrophys. Obs., 23, 212.Google Scholar
Bumba, V. (1962) Bull. Astr. Inst. Czech., 13, 48.Google Scholar
Gopasyuk, S.I., Ogir, M.B., Severny, A.B., Shaposhnikova, E.F. (1963) Publ. Crim. Astrophys. Obs., 30, 15.Google Scholar
Howard, R. (1959) Astrophys. J., 130, 193.Google Scholar
Koval, A.N. (1965) Publ. Crim. Astrophys. Obs., 34, 278.Google Scholar
Michard, R., Mouradian, Z., Semel, M. (1961) Ann. Astrophys., 24, 54.Google Scholar
Severny, A.B. (1965) ‘Stellar and Solar Magnetic Fields’, in I.A.U. Symposium No. 22, Ed. by Lüst, R., Interscience, New York, p. 255.Google Scholar
Schmidt, H.U. (1964) AAS-NASA Symposium on the Physics of Solar Flares, NASA Report SP-50 , p. 107.Google Scholar