Results 11 to 20 of about 1,498,055 (202)

Estimating Ion Temperatures at the Polar Coronal Hole Boundary

open access: yesThe Astrophysical Journal, 2023
The temperatures of the heavy ions ( T _i ) in the solar corona provide critical information about the heating mechanism of the million-degree corona.
Yingjie Zhu, Judit Szente, Enrico Landi
doaj   +1 more source

OBSERVING THE ROOTS OF SOLAR CORONAL HEATING—IN THE CHROMOSPHERE [PDF]

open access: yesThe Astrophysical Journal, 2009
14 pages, 5 figures, accepted for publication in ApJ ...
De Pontieu, Bart   +3 more
openaire   +2 more sources

EUV FLICKERING OF SOLAR CORONAL LOOPS: A NEW DIAGNOSTIC OF CORONAL HEATING [PDF]

open access: yesThe Astrophysical Journal Letters, 2016
ABSTRACT A previous work of ours found the best agreement between EUV light curves observed in an active region core (with evidence of super-hot plasma) and those predicted from a model with a random combination of many pulse-heated strands with a power-law energy distribution.
E. Tajfirouze   +3 more
openaire   +2 more sources

The Heating of Solar Coronal Loops by Alfvén Wave Turbulence [PDF]

open access: yesThe Astrophysical Journal, 2017
Abstract In this paper we further develop a model for the heating of coronal loops by Alfvén wave turbulence (AWT). The Alfvén waves are assumed to be launched from a collection of kilogauss flux tubes in the photosphere at the two ends of the loop.
A. A. van Ballegooijen   +2 more
openaire   +4 more sources

Solar Coronal Heating Fueled by Random Bursts of Fine-scale Magnetic Reconnection in Turbulent Plasma Regions

open access: yesThe Astrophysical Journal, 2023
Coronal heating is a longstanding issue in solar physics as well as plasma physics in general. In recent years, significant resolution improvements of satellite observations have contributed to a deeper understanding of small-scale physics, e.g ...
Jitong Zou   +4 more
doaj   +1 more source

The role of turbulence in coronal heating and solar wind expansion [PDF]

open access: yesPhilosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, 2015
Plasma in the Sun's hot corona expands into the heliosphere as a supersonic and highly magnetized solar wind. This paper provides an overview of our current understanding of how the corona is heated and how the solar wind is accelerated. Recent models of magnetohydrodynamic turbulence have progressed to the point of successfully predicting many ...
Steven R. Cranmer   +6 more
openaire   +3 more sources

MHD simulations of coronal heating [PDF]

open access: yes, 2015
The problem of heating the solar corona requires the conversion of magnetic energy into thermal energy. Presently, there are two promising mechanisms for heating the solar corona: wave heating and nanoflare heating.
Tam, Kuan V.
core   +2 more sources

Hyperdiffusion as a Mechanism for Solar Coronal Heating [PDF]

open access: yesThe Astrophysical Journal, 2008
9 pages (emulateapj style), 4 figures, ApJ, in press (v. 679; June 1, 2008)
van Ballegooijen, A. A., Cranmer, S. R.
openaire   +2 more sources

Scaling Law for the Heating of Solar Coronal Loops

open access: yesThe Astrophysical Journal, 1999
12 pages, 4 figures. Astrophysical Journal Letters (in press)
Dmitruk, P., Gómez, D.O.
openaire   +5 more sources

MHD turbulence and heating of the open field-line solar corona [PDF]

open access: yes, 2003
This paper discusses the possibility that heating of the solar corona in open field-line regions emanating from coronal holes is due to a nonlinear cascade, driven by low-frequency or quasi-static magnetohydrodynamic fluctuations.
Dmitruk, Pablo   +13 more
core   +2 more sources

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