Results 101 to 110 of about 11,319 (196)

Multiple Episodes of Remote Brightenings Driven by a Coronal Extreme-ultraviolet Jet on the Sun

The Astrophysical Journal
Remote brightening (RB) is compact brightening at footpoints of magnetic loops, which are remotely connecting to and confining an eruption in the solar atmosphere.
Chao Zhang, Zhenghua Huang, Hengyuan Wei, Youqian Qi, Mijie Shi, Hui Fu, Xiuhui Zuo, Weixin Liu, Mingzhe Sun, Ming Xiong, Lidong Xia   +10 more
doaj   +1 more source

Spatiotemporal Low First Ionization Potential Abundance: A Catalyst for Coronal Condensation

The Astrophysical Journal
Radiative losses play a critical role in the cooling of plasmas. When chromospheric plasma is sufficiently heated, it can flow into coronal loops, which subsequently cool down due to radiation. From observations, we infer that this cooling does not occur
Luke Fushimi Benavitz, Jeffrey W. Reep, Lucas A. Tarr, Andy S.H. To   +3 more
doaj   +1 more source

Spectroscopic Observations of Coronal Rain Formation and Evolution Following an X2 Solar Flare

The Astrophysical Journal
A significant impediment to solving the coronal heating problem is that we currently only observe active region loops in their cooling phase. Previous studies showed that the evolution of cooling loop densities and apex temperatures is insensitive to the
David H. Brooks, Jeffrey W. Reep, Ignacio Ugarte-Urra, John E. Unverferth, Harry P. Warren   +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

Solar Coronal Loops Resolved by Hinode and SDO

, 2012
Revised version accepted by ApJ ...
Brooks, David H., Warren, Harry P., Ugarte-Urra, Ignacio   +2 more
openaire   +2 more sources

Self-Consistent Heating of the Magnetically Closed Solar Corona: Generation of Nanoflares, Thermodynamic Response of the Plasma and Observational Signatures

The Astrophysical Journal
The energy that heats the magnetically closed solar corona originates in the complex motions of the massive photosphere. Turbulent photospheric convection slowly displaces the footpoints of coronal field lines, causing them to become twisted and tangled.
Craig D. Johnston, Lars K. S. Daldorff, James A. Klimchuk, Shanwlee Sow Mondal, Will T. Barnes, James E. Leake, Jack Reid, Jacob D. Parker   +7 more
doaj   +1 more source

Coronal magnetic fields and the solar wind [PDF]

Current information is presented on coronal magnetic fields as they bear on problems of the solar wind. Both steady state fields and coronal transient events are considered.
Newkirk, G., Jr.
core   +1 more source

Anomalous cross-field motions of solar coronal loops

Astronomy & Astrophysics
We present several examples of unusual evolutionary patterns in solar coronal loops that resemble cross-field drift motions. These loops were simultaneously observed from two vantage points by two different spacecraft: the High-Resolution Imager of the Extreme Ultraviolet Imager aboard the Solar Orbiter and the Atmospheric Imaging Assembly aboard the ...
Sudip Mandal, Hardi Peter, James A. Klimchuk, Lakshmi Pradeep Chitta   +3 more
openaire   +2 more sources

Modeling Solar Flares Using Tapered Coronal Loops

, 2014
Final presentations of the Center for Astrophysics HEA/SSP Solar Summer Intern Program.
openaire   +1 more source

Turbulent Suppression of Alfvénic Wave Resonances in Coronal Loops

The Astrophysical Journal
Alfvénic wave turbulence is a leading mechanism for explaining the heating of the solar corona and the acceleration of the solar wind. Alfvénic waves are observed to be prevalent throughout the inner corona.
Edris Tajfirouze, Richard Morton, Mahboubeh Asgari-Targhi   +2 more
doaj   +1 more source