文章基本信息

标题：Estimation of emission cone wall thickness of Jupiter’s decametric radio emission using stereoscopic STEREO/WAVES observations
本地全文：下载
作者：M. Panchenko ; M. Panchenko ; H. O. Rucker 等
期刊名称：Astronomy & Astrophysics
印刷版ISSN：0004-6361
电子版ISSN：1432-0746
出版年度：2016
卷号：596
页码：1-5
DOI：10.1051/0004-6361/201527397
语种：English
出版社：EDP Sciences
摘要：Aims. Stereoscopic observations by the WAVES instrument onboard two STEREO spacecraft have been used with the aim of estimating wall thickness of an emission cone of Jovian decametric radio emission (DAM). Methods. Stereoscopic observations provided by STEREO-A and -B facilitate unambiguous recognition of the Jovian DAM in observed dynamic spectra as well as identification of its components (Io DAM or non-Io DAM). The dynamic spectra of radio emissions recorded by STEREO/WAVES have been analyzed using the method of cross-correlation of the radio dynamic spectra. Results. Altogether, 139 radio events, in particular 91 Io- and 48 non-Io-related radio events were observed. The averaged width of the emission cone wall for Io-DAM as well as for non-Io DAM is about 1.1° ± 0.2°. These results are in agreement with previous findings.
关键词：planets and satellites: individual: Jupiter;masers;radiation mechanisms: non-thermal