Results 71 to 80 of about 964 (178)

Imaging a Large Coronal Loop Using Type U Solar Radio Burst Interferometry

The Astrophysical Journal
Solar radio U-bursts are generated by electron beams traveling along closed magnetic loops in the solar corona. Low-frequency (
Jinge Zhang, Hamish A. S. Reid, Eoin Carley, Laurent Lamy, Pietro Zucca, Peijin Zhang, Baptiste Cecconi   +6 more
doaj   +1 more source

Enigmatic Centi-SFU and mSFU Nonthermal Radio Transients Detected in the Middle Corona

The Astrophysical Journal
Decades of solar coronal observations have provided substantial evidence for accelerated particles in the corona. In most cases, the location of particle acceleration can be roughly identified by combining high spatial and temporal resolution data from ...
Surajit Mondal, Bin Chen, Sijie Yu, Xingyao Chen, Peijin Zhang, Dale Gary, Marin M. Anderson, Judd D. Bowman, Ruby Byrne, Morgan Catha, Sherry Chhabra, Larry D’Addario, Ivey Davis, Jayce Dowell, Gregg Hallinan, Charlie Harnach, Greg Hellbourg, Jack Hickish, Rick Hobbs, David Hodge, Mark Hodges, Yuping Huang, Andrea Isella, Daniel C. Jacobs, Ghislain Kemby, John T. Klinefelter, Matthew Kolopanis, Nikita Kosogorov, James Lamb, Casey Law, Nivedita Mahesh, Brian O’Donnell, Kathryn Plant, Corey Posner, Travis Powell, Vinand Prayag, Andres Rizo, Andrew Romero-Wolf, Jun Shi, Greg Taylor, Jordan Trim, Mike Virgin, Akshatha Vydula, Sandy Weinreb, Scott White, David Woody, Thomas Zentmeyer   +46 more
doaj   +1 more source

Sawtooth oscillations in solar flare radio emission

, 2001
For the first time, we found a spectral fine structure of solar meter wave radio burst emission which can be due to sawtooth oscillations in the hot flare plasma. This finding newly underlines an analogy between coronal and laboratory plasma processes.
H. Aurass, A. Klassen, G. Mann
core   +1 more source

Study of solar brightness profiles in the 18–26 GHz frequency range with INAF radio telescopes

Astronomy & Astrophysics
Context. One of the most important objectives of solar physics is to gain a physical understanding of the solar atmosphere, whose structure can also be described in terms of the density (N) and temperature (T) distributions of the atmospheric matter. Several multi-frequency analyses have shown that the characteristics of these distributions are still ...
M. Marongiu, A. Pellizzoni, S. Righini, S. Mulas, R. Nesti, A. Burtovoi, M. Romoli, G. Serra, G. Valente, E. Egron, G. Murtas, M. N. Iacolina, A. Melis, S. L. Guglielmino, S. Loru, P. Zucca, A. Zanichelli, M. Bachetti, A. Bemporad, F. Buffa, R. Concu, G. L. Deiana, C. Karakotia, A. Ladu, A. Maccaferri, P. Marongiu, M. Messerotti, A. Navarrini, A. Orfei, P. Ortu, M. Pili, T. Pisanu, G. Pupillo, P. Romano, A. Saba, L. Schirru, C. Tiburzi, L. Abbo, F. Frassati, M. Giarrusso, G. Jerse, F. Landini, M. Pancrazzi, G. Russano, C. Sasso, R. Susino   +45 more
openaire   +3 more sources

Coronal Diagnostics via Modeling Periodic-beaded Stripes of Solar Radio Bursts

The Astrophysical Journal
Using high-resolution data from the Chashan Broadband Solar Radio Spectrometer at meter wavelengths of the Chinese Meridian Project—Phase II, C. Li et al.
Chuanyang Li, Yao Chen, Bing Wang, Yutong Li, Xiangliang Kong, Hao Ning, Sulan Ni, Shuwang Chang, Zichuan Li, Yang Gao, Zhe Cui, Li Deng, Jingye Yan, Fabao Yan   +13 more
doaj   +1 more source

A single picture for solar coronal outflows and radio noise storms

, 2011
We propose a unified interpretation for persistent coronal outflows and metric radio noise storms, two phenomena typically observed in association with quiescent solar active regions.
G. Del Zanna, T. Török, G. Aulanier, K.-L. Klein   +3 more
core   +2 more sources

Analyzing Electron Beam-Induced Coronal Extreme Ultraviolet Emissions and Solar Radio Bursts Type III During M-Class Flares: A Preliminary Study

Journal of Physics: Conference Series
Abstract Solar flare events are triggered by the process of magnetic reconnection, which leads to a sudden release of stored magnetic energy and intensifies the electromagnetic emissions across the entire spectrum. In this preliminary study, we investigate the role of accelerated electron beams from acceleration site in enhancing Extreme
WZA Wan Mokhtar, AK Ariffin, ANM Daud, MF Umar, R Umar   +4 more
openaire   +1 more source

Solar Energetic Particles and Radio-silent Fast Coronal Mass Ejections

, 2006
International audienceBoth solar flares and shock waves driven by fast coronal mass ejections (CMEs) can accelerate charged particles in the solar corona and create transient enhancements of solar energetic particle fluxes in interplanetary space (SEP ...
Klein, Karl-Ludwig, Posner, Arik, Marqué, C.   +2 more
core   +1 more source

High-harmonic Plasma Emission Induced by Electron Beams in Weakly Magnetized Plasmas

The Astrophysical Journal
Electromagnetic radiation at higher harmonics of the plasma frequency ( ω ∼ n ω _pe , n > 2) has been occasionally observed in type II and type III solar radio bursts, yet the underlying mechanism remains undetermined.
Chuanyang Li, Yao Chen, Zilong Zhang, Hao Ning, TangMu Li   +4 more
doaj   +1 more source

Shock-related radio emission during coronal mass ejection lift-off?

, 2008
Aims. We identify the source of fast-drifting decimetric-metric radio emission that is sometimes observed prior to the so-called flare continuum emission.
S. Pohjolainen
core   +1 more source