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Statistical survey of coronal mass ejections and interplanetary type II bursts

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Title: Statistical survey of coronal mass ejections and interplanetary type II bursts
Authors: Krupar, V
Magdalenic, J
Eastwood, JP
Gopalswamy, N
Kruparova, O
Szabo, A
Nemec, F
Item Type: Journal Article
Abstract: Coronal mass ejections (CMEs) are responsible for most severe space weather events, such as solar energetic particle events and geomagnetic storms at Earth. Type II radio bursts are slow drifting emissions produced by beams of suprathermal electrons accelerated at CME-driven shock waves propagating through the corona and interplanetary medium. Here, we report a statistical study of 153 interplanetary type II radio bursts observed by the two STEREO spacecraft between 2008 March and 2014 August. The shock associated radio emission was compared with CME parameters included in the Heliospheric Cataloguing, Analysis and Techniques Service catalog. We found that faster CMEs are statistically more likely to be associated with the interplanetary type II radio bursts. We correlate frequency drifts of interplanetary type II bursts with white-light observations to localize radio sources with respect to CMEs. Our results suggest that interplanetary type II bursts are more likely to have a source region situated closer to CME flanks than CME leading edge regions.
Issue Date: 10-Sep-2019
Date of Acceptance: 16-Jul-2019
URI: http://hdl.handle.net/10044/1/74701
DOI: 10.3847/1538-4357/ab3345
ISSN: 0004-637X
Publisher: American Astronomical Society
Start Page: 1
End Page: 5
Journal / Book Title: The Astrophysical Journal: an international review of astronomy and astronomical physics
Volume: 882
Issue: 2
Copyright Statement: © 2019. The American Astronomical Society. Original content from this work may be used under the terms of the Creative Commons Attribution 3.0 licence. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI (http://creativecommons.org/licenses/by/3.0/).
Sponsor/Funder: Commission of the European Communities
Funder's Grant Number: 606692
Keywords: Science & Technology
Physical Sciences
Astronomy & Astrophysics
solar-terrestrial relations
Sun: coronal mass ejections (CMEs)
Sun: radio radiation
RADIO-BURSTS
SOLAR
Science & Technology
Physical Sciences
Astronomy & Astrophysics
solar-terrestrial relations
Sun: coronal mass ejections (CMEs)
Sun: radio radiation
RADIO-BURSTS
SOLAR
0201 Astronomical and Space Sciences
0202 Atomic, Molecular, Nuclear, Particle and Plasma Physics
0306 Physical Chemistry (incl. Structural)
Astronomy & Astrophysics
Publication Status: Published
Open Access location: https://iopscience.iop.org/article/10.3847/1538-4357/ab3345
Article Number: ARTN 92
Online Publication Date: 2019-09-05
Appears in Collections:Space and Atmospheric Physics
Physics



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