Comment on “Locating the source field lines of Jovian decametric radio emissions” by YuMing Wang et al.

• DOI: 10.26464/epp2022018
• Publication Date: 2022-01-13T05:44:39Z
• Authors: Laurent Lamy; ; Baptiste Cecconi; Stéphane Aicardi; C. K. Louis
• Keywords: Earth and Planetary Astrophysics (astro-ph.EP); 791; QC801-809; Science; Q; Geophysics. Cosmic physics; [SDU.ASTR.EP]Sciences of the Universe [physics]/Astrophysics [astro-ph]/Earth and Planetary Astrophysics [astro-ph.EP]; [SDU.ASTR.EP] Sciences of the Universe [physics]/Astrophysics [astro-ph]/Earth and Planetary Astrophysics [astro-ph.EP]; FOS: Physical sciences; planetary magnetosphere; 530; 01 natural sciences; Environmental sciences; 13. Climate action; Jupiter; 0103 physical sciences; planet-moon interaction; GE1-350; auroral radio emissions; Astrophysics - Instrumentation and Methods for Astrophysics; jupiter; Instrumentation and Methods for Astrophysics (astro-ph.IM); Astrophysics - Earth and Planetary Astrophysics

In this comment of the article [arXiv:2002.01150] "Locating the source field lines of Jovian decametric radio emissions" by YuMing Wang et al., 2020, we discuss the assumptions used by the authors to compute the beaming angle of Jupiter s decametric emissions induced by the moon Io. Their method, relying on multi-point radio observations, was applied to a single event observed on 14th March 2014 by Wind and both STEREO A/B spacecraft from 5 to 16 MHz, and erroneously identified as a northern emission (Io-B type) instead of a southern one (Io-D type). We encourage the authors to update their results with the right hemisphere of origin and to test their method on a larger sample of Jupiter-Io emissions.