Estimation of Magnetospheric Plasma Parameters from Whistlers Observed at Low Latitudes

• 作者: Jan Mohammad Banday Mohammad Mushtaq Ahmad Mohd Altaf
• 来源期刊: 天文学与天体物理学国际期刊(英文)
• 学科: 医学
• 关键词: MAGNETOSPHERE ELECTRON Temperature Electric Field ELECTRON DENSITY
• 年，卷（期）: 2013,（4）
• 页码范围: 399-407
• 页数: 9页
• 分类号: R73

摘要

Whistler observations during nighttimes made at low latitude Indian ground stations Jammu (geomag. lat., 29°26'N;L = 1.17), Nainital (geomag. lat., 19°1'N;L = 1.16) and Varanasi (geomag. lat., 14°55'N;L = 1.11) are used to deduce electron temperatures and electric field in the vicinity of the magnetospheric equator. The accurate curve fitting and parameter estimation technique are used to compute nose frequency and equatorial electron densities from the dispersion measurements of short whistlers recorded at Jammu, Nainital and Varanasi. In this paper, our aim is to estimate the Magnetospheric electron temperatures and electric field from the dispersion analysis of short whistlers observed at low latitudes by using different methods. The results obtained are in good agreement with the results reported by other workers.