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A simultaneous X-ray and radio observation of a flare from Algol |
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| Authors: | AN Parmar JL Culhane NE White GHJ van den Oord |
| Institution: | 1. Space Science Department, ESA ESTEC, Postbox 299, Noordwijk, The Netherlands;2. Mullard Space Science Laboratory, Holmbury St. Mary, Dorking, Surrey, U.K.;3. Sterrewacht Sonnenborgh, Zonnenburg 2, Utrecht 3512, The Netherlands |
| Abstract: | An X-ray flare was observed from Algol using the low and medium energy detectors on the European Space Agency's EXOSAT observatory. Spectra obtained during the flare are well fitted by thermal continua while an Fe XXV emission feature was also detected. The strength of this feature indicates a cosmic abundance for iron. The data indicate that the flare occurred in a loop of height approximately 0.25 of the K star radius & with a magnetic field >300 Gauss. |
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