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Related papers: Interplanetary shocks lacking type II radio bursts

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Coronal Mass Ejections (CMEs) are believed to be effective in producing shocks in the solar corona and the interplanetary space. One of the important signatures of shocks and shock acceleration are Type II solar radio bursts that drift with…

Solar and Stellar Astrophysics · Physics 2018-11-28 Nicolina Chrysaphi , Eduard P. Kontar , Gordon D. Holman , Manuela Temmer

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…

Astrophysics · Physics 2009-06-23 T. S. Bastian

We present \emph{in situ} observations of the source regions of interplanetary (IP) type II radio bursts, using data from the Wind spacecraft during the period 1996-2002. We show the results of this survey as well as in-depth analysis of…

Space Physics · Physics 2009-11-13 M. Pulupa , S. D. Bale

We study the characteristics of moving type IV radio bursts which extend to the hectometric wavelengths (interplanetary type IV or type IV IP bursts) and their relationship with energetic phenomena on the Sun. Our dataset comprises 48…

Solar and Stellar Astrophysics · Physics 2016-06-28 Alexander Hillaris , Constantine Bouratzis , Alexander Nindos

The Parker Solar Probe (PSP) and Solar Orbiter (SolO) missions opened a new observational window in the inner heliosphere, which is finally accessible to direct measurements. On September 05, 2022, a coronal mass ejection (CME)-driven…

We report radial speed evolution of interplanetary coronal mass ejections (ICMEs) detected by the SOHO/LASCO coronagraph, interplanetary scintillation (IPS) at 327 MHz, and in-situ observations. In this study, we analyze solar wind…

Solar and Stellar Astrophysics · Physics 2014-12-09 Tomoya Iju , Munetoshi Tokumaru , Ken'ichi Fujiki

Coronal mass ejection (CME) often produces a soft X-ray (SXR) flare associated with the low-coronal reconnection and a type-II radio burst associated with an interplanetary (IP) CME-shock. SXR flares and type-II bursts outshine the…

Solar and Stellar Astrophysics · Physics 2024-10-02 Atul Mohan , Nat Gopalswamy , Hemapriya Raju , Sachiko Akiyama

We analyze radio bursts observed in events with interacting/non-interacting CMEs that produced major SEPs (Ip $>$ 10 MeV) fromApril 1997 to December 2014.We compare properties of meter (m), deca-hectometer (DH) type II as well as DH type…

Solar and Stellar Astrophysics · Physics 2021-07-22 P Pappa Kalaivani , O Prakash , A Shanmugaraju , Li Feng , Lei Lu , Weiqun Gan , G Michalek

Solar type II radio bursts are the signature of particle acceleration by shock waves in the solar corona and interplanetary medium. The shocks originate in solar eruptions involving coronal mass ejections (CMEs) moving at super-Alfvenic…

Solar and Stellar Astrophysics · Physics 2019-12-17 Nat Gopalswamy , Pertti Mäkelä , Seiji Yashiro

One of the sources of solar energetic particle (SEP) events is shocks that are driven by fast coronal mass ejections (CMEs). They can accelerate SEPs up to relativistic energies and are attributed to the largest SEP events. New studies…

Solar and Stellar Astrophysics · Physics 2023-06-21 N. Talebpour Sheshvan , N. Dresing , R. Vainio , A. Afanasiev , D. E. Morosan

Energetic electrons accelerated by solar flares often give rise to type III radio bursts at a broad waveband and even interplanetary type III bursts (IT3) if the wavelength extends to decameter-kilometer. In this Letter, we investigate the…

Solar and Stellar Astrophysics · Physics 2020-07-29 Y. K. Kou , Z. C. Jing , X. Cheng , W. Q. Pan , Y. Liu , C. Li , M. D. Ding

We report on further evidence that solar energetic particles are organized by the kinematic properties of coronal mass ejections (CMEs)[1]. In particular, we focus on the starting frequency of type II bursts, which is related to the…

Solar and Stellar Astrophysics · Physics 2017-10-11 N Gopalswamy , P Mäkelä , S Yashiro , N Thakur , S Akiyama , H Xie

Type II radio bursts are solar radio emissions generated by electrons accelerated by coronal shocks. These bursts are typically found close to expanding coronal mass ejections (CMEs), making them valuable for studying the properties and…

Solar and Stellar Astrophysics · Physics 2026-05-13 K. Bhandari , D. E. Morosan , S. Normo

We investigate the physical conditions of the sources of two metric Type-II bursts associated with CME expansions with the aim of verifying the relationship between the shocks and the CMEs, comparing the heights of the radio sources and the…

Solar and Stellar Astrophysics · Physics 2015-06-11 R. D. Cunha-Silva , F. C. R. Fernandes , C. L. Selhorst

Coronal mass ejections (CMEs) may disturb the solar wind either by overtaking it, or by expanding into it, or both. CMEs whose front moves faster in the solar wind frame than the fast magnetosonic speed, drive shocks. Such shocks are…

Coronal mass ejections (CMEs) on stars other than the Sun have proven very difficult to detect. One promising pathway lies in the detection of type II radio bursts. Their appearance and distinctive properties are associated with the…

We investigate the kinetic properties of a typical fast-mode shock inside an interplanetary coronal mass ejection (ICME) observed on 1998 August 6 at 1 AU, including particle distributions and wave analysis with the in situ measurements…

Solar and Stellar Astrophysics · Physics 2018-05-30 Mingzhe Liu , Ying D. Liu , Zhongwei Yang , L. B. Wilson , Huidong Hu

A number of metric (100-650 MHz) typeII bursts was recorded by the ARTEMIS-IV radiospectrograph in the 1998-2000 period; the sample includes both CME driven shocks and shocks originating from flare blasts. We study their characteristics in…

Solar activity, in particular coronal mass ejections (CMEs), are often accompanied by bursts of radiation at metre wavelengths. Some of these bursts have a long duration and extend over a wide frequency band, namely, type IV radio bursts.…

Solar and Stellar Astrophysics · Physics 2021-01-20 Anshu Kumari , D. E. Morosan , E. K. J. Kilpua

Employing coronagraphic and EUV observations close to the solar surface made by the Solar Terrestrial Relations Observatory (STEREO) mission, we determined the heliocentric distance of coronal mass ejections (CMEs) at the starting time of…