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Astron. Astrophys. 348, 249-250 (1999)

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Research Note

A new approximation of electron-cyclotron-maser frequencies

A. Stupp

School of Physics and Astronomy, Tel-Aviv University, Israel (stupp@post.tau.ac.il)

Received 4 November 1998 / Accepted 11 February 1999


We present a new approximation for the frequencies where electron-cyclotron-maser is produced by a loss-cone distribution. This approximation is fully relativistic, and is good also for masering frequencies far from the cyclotron harmonics.

Key words: methods: analytical – methods: numerical – Sun: activity – Sun: flares – Sun: radio radiation

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© European Southern Observatory (ESO) 1999

Online publication: July 16, 1999