Fast solar wind monitoring available: BMSW in operation
2013; American Institute of Physics; Linguagem: Inglês
10.1063/1.4811085
ISSN1935-0465
AutoresJana Šafránková, Zdeněk Němeček, Lubomír Přech, Г. Н. Застенкер,
Tópico(s)Stellar, planetary, and galactic studies
ResumoThe Spektr–R spacecraft was launched on a Zenit–3F rocket into an orbit with a perigee of 10.000 kilometers and apogee of 390.000 km on July 18, 2011. The spacecraft operational lifetime would exceed five years. The main task of the mission is investigations of distant sources of electromagnetic emissions but, as a supporting measurement, the spacecraft carries a complex of instruments for solar wind monitoring because it will spend there ∼ 8 days out of the 9–day orbit. The main task of the solar wind monitor (BMSW) is to provide fast measurements of the solar wind density, velocity, and temperature with a maximum time resolution of 31 ms. Such time resolution was obtained using simultaneous measurements of several Faraday cups oriented permanently nearly in the solar wind direction. In this paper, we describe briefly basic principles of the BMSWoperation, and show a few examples its observations. We present frequency spectra of the solar wind turbulence at the kinetic scale and an example of high–frequency waves associated with an IP shock.
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