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An eruptive prominence and associated cm-mm emission outside the solar limb |
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| Authors: | A M Zodi E Correia J E R Costa P Kaufmann S F Martin M R Kundu |
| Institution: | (1) INPE: Instituto de Pesquisas Espaciais, C.P. 515, 12.200 S. José dos Campos, SP, Brazil;(2) Escola Politécnica, Universidade de São Paulo, C.P. 8174, 05508 São Paulo, SP, Brazil;(3) Solar Astronomy 264-33, California Institute of Technology, 91125 Pasadena, CA, U.S.A.;(4) Astronomy Program, University of Maryland, 20742 College Park, MD, U.S.A. |
| Abstract: | We present radio maps at 22 and 44 GHz which show the emission before and after the eruption of a quiescent prominence located at the west limb. The observed radiation following the eruption is not consistent with thermal bremsstrahlung mechanism. It can be interpreted as due to gyrosynchrotron emission of nonthermal electrons. Our observations appear to be similar to the microwave radiation observed in post-flare loops; this radiation is due to nonthermal electrons trapped in the closed magnetic structures formed after the prominence eruption. |
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