Results 121 to 130 of about 43,284 (218)

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

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

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

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

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

Three Types of Solar Coronal Rain during Magnetic Reconnection between Open and Closed Magnetic Structures

The Astrophysical Journal
Coronal rain (CR) is a crucial part of the mass cycle between the corona and chromosphere. It includes flare-driven CR and two types of quiescent CR, along nonflaring active region closed loops and along open structures, separately, labeled as type I ...
Fangfang Qiao, Leping Li, Hui Tian, Zhenyong Hou, Hongqiang Song, Kaifan Ji, Zheng Sun   +6 more
doaj   +1 more source

Apparent Transverse Motion of Light Bridges Coupled to Coronal Loop Dynamics

The Astrophysical Journal
Light bridges (LBs) are commonly observed in active regions and are interpreted as signatures of magnetoconvective processes in sunspots. Several studies have attempted to classify them in the past based on their morphological characteristics.
Atul Bhat, Sreejith Padinhatteeri, J. M. Borrero, Jayant Joshi   +3 more
doaj   +1 more source

The Hydrodynamic Thermal Continuum, with Applications to Stratified Atmospheres and 1D Coronal Loop Models

The Astrophysical Journal
Using both analytical and numerical means, we demonstrate that linear stability analysis of a hydrodynamic stratified atmosphere or a 1D coronal loop model in nonadiabatic settings features a thermal continuum corresponding to highly localized ...
Rony Keppens, Jordi De Jonghe, Adrian Kelly, Nicolas Brughmans, Hans Goedbloed   +4 more
doaj   +1 more source

Investigating the Relationship Between Physical Properties and Spatial Irregularities at Coronal Hole Boundaries. [PDF]

Sol Phys
Ngampoopun N, Long DM, Green LM, Yardley SL, James AW, Mason EI, Heinemann SG, Uritsky VM.   +7 more
europepmc   +1 more source

Evolution of Open Magnetic Flux and Heliospheric Current Sheet-Associated Streamer Wind Across Multiple Solar Cycles. [PDF]

Sol Phys
MacTaggart JR, Zhao L, Lepri ST, Fisk LA, Nakhleh AJ.   +4 more
europepmc   +1 more source