中文
相关论文

相关论文: Spatial expansion and speeds of type III electron …

200 篇论文

Type III radio bursts are intense radio emissions triggered by beams of energetic electrons often associated with solar flares. These exciter beams propagate outwards from the Sun along an open magnetic field line in the corona and in the…

太阳与恒星天体物理 · 物理学 2015-08-19 Vratislav Krupar , Eduard P. Kontar , Jan Soucek , Ondrej Santolik , Milan Maksimovic , Oksana Kruparova

Solar type III radio bursts contain a wealth of information about the dynamics of electron beams in the solar corona and the inner heliosphere; currently unobtainable through other means. However, the motion of different regions of an…

太阳与恒星天体物理 · 物理学 2018-06-20 Hamish A. S. Reid , Eduard P. Kontar

Understanding the properties of type III radio bursts in the solar corona and interplanetary space is one of the best ways to remotely deduce the characteristics of solar accelerated electron beams and the solar wind plasma. One feature of…

太阳与恒星天体物理 · 物理学 2015-05-13 Hamish A. S. Reid , Eduard P. Kontar

Electron beams accelerated in solar flares and escaping from the Sun along open magnetic field lines can trigger intense radio emissions known as type III solar radio bursts. Utilizing observations by Parker Solar Probe (PSP), STEREO-A…

太阳与恒星天体物理 · 物理学 2025-10-02 Francesco Azzollini , Eduard P. Kontar

Quantifying the energy content of accelerated electron beams during solar eruptive events is a key outstanding objective that must be constrained to refine particle acceleration models and understand the electron component of space weather.…

太阳与恒星天体物理 · 物理学 2024-09-24 Alexander W. James , Hamish A. S. Reid

Electrons accelerated by solar flares and observed as type III solar radio bursts are not only a crucial diagnostic tool for understanding electron transport in the inner heliosphere but also a possible early indication of potentially…

太阳与恒星天体物理 · 物理学 2024-10-16 Eduard P. Kontar , Francesco Azzollini , Olena Lyubchyk

Non-thermal electrons accelerated in the solar corona can produce intense coherent radio emission, known as solar type III radio bursts. This intense radio emission is often observed from hundreds of MHz in the corona down to the tens of…

太阳与恒星天体物理 · 物理学 2014-12-10 H. Ratcliffe , E. P. Kontar , H. A. S. Reid

Solar type III radio bursts are an important diagnostic tool in the understanding of solar accelerated electron beams. They are a signature of propagating beams of nonthermal electrons in the solar atmosphere and the solar system.…

太阳与恒星天体物理 · 物理学 2015-06-19 Hamish A. S. Reid , Heather Ratcliffe

Dynamics of an spatially limited electron beam in the inhomogeneous solar corona plasma is considered in the framework of weak turbulence theory when the temperature of the beam significantly exceeds that of surrounding plasma. The…

太阳与恒星天体物理 · 物理学 2019-03-22 Eduard P. Kontar

Solar flare accelerated electrons escaping into the interplanetary space and seen as type III solar radio bursts are often detected near the Earth. Using numerical simulations we consider the evolution of energetic electron spectrum in the…

太阳与恒星天体物理 · 物理学 2012-09-25 Hamish A. S. Reid , Eduard P. Kontar

During solar flares a large amount of electrons with energies greater than 20 keV is generated with a production rate of typically $10^{36}$ s$^{-1}$. A part of them is able to propagate along open magnetic field lines through the corona…

太阳与恒星天体物理 · 物理学 2015-11-11 F. Breitling , G. Mann , C. Vocks

We report observations of type III radio bursts at decimeter wavelengths (type IIIdm bursts) -- signatures of suprathermal electron beams propagating in the low corona -- using the new technique of radio dynamic imaging spectroscopy…

太阳与恒星天体物理 · 物理学 2015-06-12 Bin Chen , Timothy S. Bastian , Stephen M. White , Dale E. Gary , Richard A. Perley , Michael P. Rupen , Brent R. Carlson

In this work, we propose a forward-modeling method to study the trajectory and speed of the interplanetary (IP) Type-III radio burst exciter. The model assumes that the source of an IP Type-III radio burst moves outward from the Sun…

太阳与恒星天体物理 · 物理学 2019-05-24 Peijin Zhang , Chuanbing Wang , Lin Ye , Yuming Wang

We investigate the type III radio bursts and X-ray signatures of accelerated electrons in a well observed solar flare in order to find the spatial properties of the acceleration region. Combining simultaneous RHESSI hard X-ray flare data…

太阳与恒星天体物理 · 物理学 2015-05-27 H. A. S. Reid , N. Vilmer , E. P. Kontar

Radio U-bursts and J-bursts are signatures of electron beams propagating along magnetic loops confined to the corona. The more commonly observed type III radio bursts are signatures of electron beams propagating along magnetic loops that…

太阳与恒星天体物理 · 物理学 2017-11-01 Hamish A. S. Reid , Eduard P. Kontar

One of the most prominent sources for energetic particles in our solar system are huge eruptions of magnetised plasma from the Sun called coronal mass ejections (CMEs), which usually drive shocks that accelerate charged particles up to…

太阳与恒星天体物理 · 物理学 2023-12-13 D. E. Morosan , J. Pomoell , C. Palmroos , N. Dresing , E. Asvestari , R. Vainio , E. K. J. Kilpua , J. Gieseler , A. Kumari , I. C. Jebaraj

Type III radio bursts are radio emissions associated with solar flares. They are considered to be caused by electron beams traveling from the solar corona to the solar wind. Magnetic reconnection is a possible accelerator of electron beams…

等离子体物理 · 物理学 2021-03-17 Xin Yao , Patricio A. Muñoz , Jörg Büchner , Xiaowei Zhou , Siming Liu

During solar flares fast electron beams generated in the solar corona are non-thermal radio sources in terms of type III bursts. Sometimes they can enter into the interplanetary space, where they can be observed by in-situ measurements as…

太阳与恒星天体物理 · 物理学 2011-12-23 H. Önel , G. Mann , E. Sedlmayr

Solar flare electron acceleration is an efficient process, but its properties (mechanism, location) are not well constrained. Via hard X-ray (HXR) emission, we routinely observe energetic electrons at the Sun, and sometimes we detect…

太阳与恒星天体物理 · 物理学 2023-10-09 Ross Pallister , Natasha L. S. Jeffrey

Solar type III radio bursts are excited by electron beams propagating outward from the Sun. The flux of type III radio burst has a time profile of rising and decay phase at a given frequency, which has been actively studied since 1970s.…

太阳与恒星天体物理 · 物理学 2019-11-13 PeiJin Zhang , SiJie Yu , Eduard Kontar , ChuanBing Wang
‹ 上一页 1 2 3 10 下一页 ›