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相关论文: Microwave Type III Pair Bursts in Solar Flares

200 篇论文

This paper presents a detailed study of the type II solar radio burst that occurred on 06 March 2014 using combined data analysis. It is a classical radio event consisting of type III radio burst and a following type II radio burst in the…

太阳与恒星天体物理 · 物理学 2024-04-02 V. Vasanth

For the 2017 September 6 flare (SOL2017-Sep-06T11:53) we present not only unusual radio bursts, but also their interesting time association with the other flare phenomena observed in EUV, white-light, X-ray, and $\gamma$-ray emissions.…

太阳与恒星天体物理 · 物理学 2020-10-07 M. Karlicky , J. Rybak

Short timescale flux variations are closely related to the energy release process of magnetic reconnection during solar flares. Radio light curves at 1, 2, 3.75, 9.4, and 17 GHz of 209 flares observed by the Nobeyama Radio Polarimeter from…

太阳与恒星天体物理 · 物理学 2020-06-04 Wang Lu , Liu Si-ming , Ning Zong-jun

Using a new type of oscillation map, made from the radio spectra by the wavelet technique, we study the 18 April 2014 M7.3 flare (SOL2014-04-18T13:03:00L245C017). We find a quasi-periodic character of this flare with periods in the range…

太阳与恒星天体物理 · 物理学 2017-07-19 M. Karlicky , J. Rybak , C. Monstein

We present radio and X-ray observations of an impulsive solar flare that was moderately intense in microwaves, yet showed very meager EUV and X-ray emission. The flare occurred on 2001 Oct 24 and was well-observed at radio wavelengths by…

天体物理学 · 物理学 2009-06-23 T. S. Bastian , G. D. Fleishman , D. E. Gary

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…

太阳与恒星天体物理 · 物理学 2019-12-17 Nat Gopalswamy , Pertti Mäkelä , Seiji Yashiro

Type III solar radio storms, observed at frequencies below approximately 16 MHz by space borne radio experiments, correspond to the quasi-continuous, bursty emission of electron beams onto open field lines above active regions. The…

太阳与恒星天体物理 · 物理学 2015-05-14 J. P. Eastwood , M. S. Wheatland , H. S. Hudson , S. Krucker , S. D. Bale , M. Maksimovic , K. Goetz , J. -L. Bougeret

Three-minute oscillations are a common phenomenon in the solar chromosphere above a sunspot. Oscillations can be affected by the energy release process related to solar flares. In this paper, we report on an enhanced oscillation in flare…

太阳与恒星天体物理 · 物理学 2023-11-30 Ya Wang , Lyndsay Fletcher , Sargam Mulay , Haisheng Ji , Wenda Cao

It is generally considered that the emission of microwave zebra pattern (ZP) structures requires high density and high temperatures, which is similar to the situation of the flaring region where primary energy releases. Therefore, the…

太阳与恒星天体物理 · 物理学 2015-06-11 Sijie Yu , Yihua Yan , Baolin Tan

Solar flare accelerated electron beams propagating away from the Sun can interact with the turbulent interplanetary media, producing plasma waves and type III radio emission. These electron beams are detected near the Earth with a double…

太阳与恒星天体物理 · 物理学 2015-05-19 H. A. S. Reid , E. P. Kontar

On 23 July 2016 after 05:00\,UTC, the first 48-antenna stage of the Siberian Radioheliograph detected two flares of M7.6 and M5.5 GOES importance that occurred within half an hour in the same active region. Their multi-instrument analysis…

The spatial association of narrow band metric radio spikes with type III bursts is analyzed. The analysis addresses the question of a possible causal relation between the spike emission and the acceleration of the energetic electrons…

天体物理学 · 物理学 2009-11-06 G. Paesold , A. O. Benz , K. -L. Klein , N. Vilmer

We analyse of a set of radio rich (accompanied by type IV or II bursts) solar flares and their association with SOHO/LASCO Coronal Mass Ejections in the period 1998 2000. The intensity, impulsiveness and energetics of these events are…

Plasma with a temperature close to the chromospheric one is ejected in solar eruptions. Such plasma can occult some part of emission of compact sources in active regions as well as quiet solar areas. Absorption phenomena can be observed in…

太阳与恒星天体物理 · 物理学 2015-05-20 V. V. Grechnev , I. V. Kuzmenko , I. M. Chertok , A. M. Uralov

Solar radio bursts exhibit complex fine structures that reveal intricate coronal plasma dynamics. Here, we report detection of spike-like repeating burst pairs, characterized by two short-lived (0.1-2 s), narrowband components separated by…

太阳与恒星天体物理 · 物理学 2026-05-28 Suli Ma , Eduard P. Kontar , Daniel L. Clarkson , Huadong Chen , Yihua Yan

At the site of their origin, solar meterwave radio bursts contain pristine information about the local coronal magnetic field and plasma parameters. On its way through the turbulent corona, this radiation gets substantially modified due to…

太阳与恒星天体物理 · 物理学 2019-05-01 Atul Mohan , Surajit Mondal , Divya Oberoi , Colin Lonsdale

In this note, we consider radio characteristics of three proton flares that caused discrete enhancements of solar energetic particles (SEPs) near Earth. The analysis confirmed that the flux density and frequency spectrum of microwave…

太阳与恒星天体物理 · 物理学 2018-02-02 I. M. Chertok

Svestka (Solar Phys. 1989, 121, 399) on the basis of the Solar Maximum Mission observations introduced a new class of flares, the so-called flare hybrids. When they start, they look as typical compact flares (phase 1), but later on they…

太阳与恒星天体物理 · 物理学 2015-05-20 M. Tomczak , P. Dubieniecki

Type-II radio bursts are typically observed below ~ 400 MHz, with narrow-band slowly-drifting fundamental and harmonic structures. Here we report an unusual high-frequency wide-band type-II burst with starting frequency as high as 600 - 700…

太阳与恒星天体物理 · 物理学 2025-05-07 V. Vasanth , Yao Chen , G. Michalek

During a solar flare, electrons are accelerated to non-thermal energies as a result of magnetic reconnection. These electrons then propagate upwards and downwards from the energy release site along magnetic field lines and produce radio and…

太阳与恒星天体物理 · 物理学 2025-03-04 Shilpi Bhunia , Laura A. Hayes , Karl Ludwig Klein , Nicole Vilmer , Shane A. Maloney , Peter T. Gallagher