Results 51 to 60 of about 133 (107)

Defining the Middle Corona. [PDF]

Sol Phys, 2023
West MJ, Seaton DB, Wexler DB, Raymond JC, Del Zanna G, Rivera YJ, Kobelski AR, Chen B, DeForest C, Golub L, Caspi A, Gilly CR, Kooi JE, Meyer KA, Alterman BL, Alzate N, Andretta V, Auchère F, Banerjee D, Berghmans D, Chamberlin P, Chitta LP, Downs C, Giordano S, Harra L, Higginson A, Howard RA, Kumar P, Mason E, Mason JP, Morton RJ, Nykyri K, Patel R, Rachmeler L, Reardon KP, Reeves KK, Savage S, Thompson BJ, Van Kooten SJ, Viall NM, Vourlidas A, Zhukov AN.   +41 more
europepmc   +1 more source

The role and contribution of magnetic fields, characterized via their magnetic flux, to the statistical structuring of the solar atmosphere. [PDF]

Sci Rep, 2022
Li KJ, Xu JC, Feng W.
europepmc   +1 more source

Dynamic Motion of Microwave Bursts during a Solar Limb Flare

The Astrophysical Journal
The SOL2013-10-28T02:02:58L133C110 flare occurred on the western limb, acquiring the GOES class of X1.0, and we focus on an oscillatory phenomenon detected at 34 GHz by the Nobeyama Radioheliograph (NoRH) during this flare.
Sujin Kim, Jeongwoo Lee, Sung-Hong Park, Su-Chan Bong, Satoshi Masuda   +4 more
doaj   +1 more source

A solar jet-induced perturbation propagating through coronal loops and in-loop electron beam transport as indicated by type II and type N radio bursts

Astronomy & Astrophysics
Aims. Solar type II radio bursts are commonly attributed to coronal shocks driven by coronal mass ejections (CMEs). However, some metric type II bursts have occasionally been reported to occur in the absence of a CME and to be associated with weak solar ...
Cui Yingli, Kong Xiangliang, Li Zhentong, Wang Bing, Duan Yadan, Zhong Ze, Ning Hao, Wu Zhao, Wang Manqing, Liu Yang, Yu Feiyu, Jiang Zelong, Chen Wei, Su Yang, Chen Yao   +14 more
doaj   +1 more source

From Nobeyama Radio Observatory to the international project ALMA -Evolution of millimeter and submillimeter wave astronomy in Japan. [PDF]

Proc Jpn Acad Ser B Phys Biol Sci, 2022
Ishiguro M, Chiba K, Sakamoto S.
europepmc   +1 more source

Microwave Polar Brightening and Its Connection to Polar Coronal Holes

The Astrophysical Journal
Polar brightening (PB) observed at microwave frequencies serves as an important probe to study the thermal and magnetic properties in the Sun’s polar regions.
Rohan Bose, Anshu Kumari, Vaibhav Pant, Srinjana Routh, Divya Paliwal, M. V. Sunil Krishna   +5 more
doaj   +1 more source

Magneto-thermal Coupling and Coronal Heating in Solar Active Regions Inferred from Microwave Observations

The Astrophysical Journal
The solar corona is much hotter than the photosphere and chromosphere, but the physical mechanism responsible for heating the coronal plasma remains unidentified. The thermal microwave emission, which is produced in a strong magnetic field above sunspots,
Alexey A. Kuznetsov, Gregory D. Fleishman, Gelu M. Nita, Sergey A. Anfinogentov   +3 more
doaj   +1 more source

Eruption of a high-latitude prominence observed by the Siberian Radioheliograph and space-borne telescopes: I. Torus and helical kink instabilities in CME development

Solar-Terrestrial Physics
The eruption of a large prominence and the resulting development of a coronal mass ejection (CME) were observed on June 12, 2023 by the Siberian Radioheliograph in microwaves up to heliocentric distances exceeding two solar radii, space-borne telescopes ...
Grechnev Victor, Globa Mariia, Uralov Arkadiy   +2 more
doaj   +1 more source

Subsecond Spikes in Fermi GBM X-Ray Flux as a Probe for Solar Flare Particle Acceleration. [PDF]

Astrophys J, 2020
Knuth T, Glesener L.
europepmc   +1 more source

Estimating the Total Energy Content in Escaping Accelerated Solar Electron Beams

The Astrophysical Journal
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.
Alexander W. James, Hamish A. S. Reid
doaj   +1 more source