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Approximate expressions for Gyrosynchrotron radiation in Transverse Propagation

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Abstract

Two sets of accurate approximate expressions for the gyrosynchrotron radiation in the transverse propagation case are presented for the first time. They contain emissivity ην −/BNand absorptivity κν − B/Nfor e-mode, effective temperature T effand frequency of peak brightness νp. The expressions are designed for the range 2 to 7 of electron energy spectral index δ and for the ranges from 2 to 10 and 10 to 100 of harmonic numbers s(=ν/νB). Their statistical error is, respectively, ±18% and ±29% for ην −/BNand κν − B/Nfor 10≤ν/νB≤100, ±128% and and ±170% for 2≤ν/νB≤10.

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Authors and Affiliations

  1. Purple Mountain Observatory, Academia Sinica, Nanjing, 210008, China

    Zhou Ai-Hua, Huang Guang-Li & Wang Xin-Dong

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  1. Zhou Ai-Hua
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  2. Huang Guang-Li
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  3. Wang Xin-Dong
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Ai-Hua, Z., Guang-Li, H. & Xin-Dong, W. Approximate expressions for Gyrosynchrotron radiation in Transverse Propagation. Solar Physics 189, 345–356 (1999). https://doi.org/10.1023/A:1005221330935

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  • DOI: https://doi.org/10.1023/A:1005221330935

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