The EUV spectrum of sunspot plumes observed by SUMER on SOHO

descriptionPublicationkeyboard_double_arrow_right Article 01 Jan 2000 English Publisher:Springer Science and Business Media LLCJournal:Journal of Astrophysics and Astronomy, volume 21, pages 397-401 (issn: 0250-6335, eissn: 0973-7758,

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Authors: Curdt, W.; Dwivedi, B.; Feldman, U.;

doi: 10.1007/bf02702432 , 10.1017/s0252921100064903

handle: 11858/00-001M-0000-0014-E3A9-8

The EUV spectrum of sunspot plumes observed by SUMER on SOHO

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Abstract

AbstractWe present results from sunspot observations obtained by SUMER on SOHO. In sunspot plumes the EUV spectrum differs from the quiet Sun; continua are observed with different slopes and intensities; emission lines from molecular hydrogen and many unidentified species indicate unique plasma conditions above sunspots. Sunspot plumes are sites of systematic downflow. We also discuss the properties of sunspot oscillations.

Related Organizations

Max Planck Institute for Solar System Research
Germany
Banaras Hindu University
India
Max Planck Society
Germany

Keywords

Sun and Heliosphere, SOHO: SUMER

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