Synchrotron Radio Emission from a Fast Halo Coronal Mass Ejection

Details Synchrotron Radio Emission from a Fast Halo Coronal Mass Ejection Synchrotron Radio Emission from a Fast Halo Coronal Mass Ejection

2007-04-24

arxiv.org/abs/0704.3108v1

Astrophys.J.665:805-812,2007

Astronomy and Astrophysics

Astrophysics

19 pages, 3 figures

Scientific paper

10.1086/519246

An interplanetary (IP) type-II-like radio burst is analyzed. It occurred on 2003 June 17-18 in association with a fast halo coronal mass ejection (CME), an M6.8 soft-X-ray (SXR) flare, and produced a solar proton event. Unlike coronal type II bursts and the ma jority of IP type II radio emissions, the IP type-II-like event associated with the fast halo CME on June 17-18 varies smoothly in time and frequency and has a frequency bandwidth that is several times larger than is typical for coronal and IP type II emissions. Moreover, the frequency change with time is inconsistent with that expected from plasma radiation associated with a CME-driven shock. I suggest that this IP type-II-like event, referred to here as an IP type II-S event, is not due to plasma radiation but, rather, incoherent synchrotron radiation from near-relativistic electrons entrained in the CME magnetic field, or in the sheath region between the shock and the CME driver. This event may be an example of a new and distinct class of interplanetary radio phenomenon.

Affiliated with

Also associated with

No associations

Rating

Synchrotron Radio Emission from a Fast Halo Coronal Mass Ejection does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Synchrotron Radio Emission from a Fast Halo Coronal Mass Ejection, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Synchrotron Radio Emission from a Fast Halo Coronal Mass Ejection will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-225092