Search Results - "Cargill, P. J."

ENTHALPY-BASED THERMAL EVOLUTION OF LOOPS. II. IMPROVEMENTS TO THE MODEL by CARGILL, P. J, BRADSHAW, S. J, KLIMCHUK, And J. A

“…This paper develops the zero-dimensional (0D) hydrodynamic coronal loop model "Enthalpy-based Thermal Evolution of Loops" (EBTEL) proposed by Klimchuk et al.,…”
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Highly Efficient Modeling of Dynamic Coronal Loops by Klimchuk, J. A, Patsourakos, S, Cargill, P. J

“…Observational and theoretical evidence suggests that coronal heating is impulsive and occurs on very small cross-field spatial scales. A single coronal loop…”
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INFERENCE OF HEATING PROPERTIES FROM "HOT" NON-FLARING PLASMAS IN ACTIVE REGION CORES. I. SINGLE NANOFLARES by Barnes, W. T., Cargill, P. J., Bradshaw, S. J.

“…ABSTRACT The properties that are expected of "hot" non-flaring plasmas due to nanoflare heating in active regions are investigated using hydrodynamic modeling…”
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INFERENCE OF HEATING PROPERTIES FROM "HOT" NON-FLARING PLASMAS IN ACTIVE REGION CORES. II. NANOFLARE TRAINS by Barnes, W. T., Cargill, P. J., Bradshaw, S. J.

“…ABSTRACT Despite its prediction over two decades ago, the detection of faint, high-temperature ("hot") emission due to nanoflare heating in non-flaring active…”
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CORONAL DENSITY STRUCTURE AND ITS ROLE IN WAVE DAMPING IN LOOPS by Cargill, P. J., De Moortel, I., Kiddie, G.

“…ABSTRACT It has long been established that gradients in the Alfvén speed, and in particular the plasma density, are an essential part of the damping of waves…”
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The Cooling of Coronal Plasmas. III. Enthalpy Transfer as a Mechanism for Energy Loss by Bradshaw, S. J, Cargill, P. J

“…The cooling of impulsively heated coronal loops is examined with emphasis on the phase when optically thin radiation is dominant over conduction. It is shown…”
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AN MHD AVALANCHE IN A MULTI-THREADED CORONAL LOOP by Hood, A. W., Cargill, P. J., Browning, P. K., Tam, K. V.

“…ABSTRACT For the first time, we demonstrate how an MHD avalanche might occur in a multithreaded coronal loop. Considering 23 non-potential magnetic threads…”
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THE COOLING OF CORONAL PLASMAS. IV. CATASTROPHIC COOLING OF LOOPS by Cargill, P J, Bradshaw, S J

“…We examine the radiative cooling of coronal loops and demonstrate that the recently identified catastrophic cooling is due to the inability of a loop to…”
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Characteristic magnetic field and speed properties of interplanetary coronal mass ejections and their sheath regions by Owens, M. J., Cargill, P. J., Pagel, C., Siscoe, G. L., Crooker, N. U.

“…Prediction of the solar wind conditions in near‐Earth space, arising from both quasi‐steady and transient structures, is essential for space weather…”
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THE INFLUENCE OF NUMERICAL RESOLUTION ON CORONAL DENSITY IN HYDRODYNAMIC MODELS OF IMPULSIVE HEATING by Bradshaw, S J, Cargill, P J

“…The effect of the numerical spatial resolution in models of the solar corona and corona/chromosphere interface is examined for impulsive heating over a range…”
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Modeling the Radiative Signatures of Turbulent Heating in Coronal Loops by Parenti, S, Buchlin, E, Cargill, P. J, Galtier, S, Vial, J.-C

“…The statistical properties of the radiative signature of a coronal loop subject to turbulent heating obtained from a three-dimensional (3D)…”
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ACTIVE REGION EMISSION MEASURE DISTRIBUTIONS AND IMPLICATIONS FOR NANOFLARE HEATING by Cargill, P J

“…The temperature dependence of the emission measure (EM) in the core of active regions coronal loops is an important diagnostic of heating processes…”
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Modelling nanoflares in active regions and implications for coronal heating mechanisms by Cargill, P. J., Warren, H. P., Bradshaw, S. J.

“…Recent observations from the Hinode and Solar Dynamics Observatory spacecraft have provided major advances in understanding the heating of solar active regions…”
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A numerical study of two interacting coronal mass ejections by SCHMIDT, J. M, CARGILL, P. J

“…The interaction in the solar wind between two coronal mass ejections (CMEs) is investigated using numerical simulations. We show that the nature of the…”
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The thermodynamic response of heating at coronal null points by Johnson, D, Hood, A W, Cargill, P J, Reid, J, Johnston, C D

“…ABSTRACT Magnetic null points are an important aspect of the magnetic field structure of the solar corona and can be sites of enhanced dissipation. This paper…”
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Static and dynamic solar coronal loops with cross-sectional area variations by Cargill, P J, Bradshaw, S J, Klimchuk, J A, Barnes, W T

“…ABSTRACT The Enthalpy Based Thermal Evolution of Loops approximate model for static and dynamic coronal loops is developed to include the effect of a loop…”
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Magnetic reconnection between a magnetic cloud and the solar wind magnetic field by Schmidt, J. M., Cargill, P. J.

“…This paper presents a numerical study of magnetic reconnection processes between magnetically organized structures in the solar wind (e.g., magnetic clouds or…”
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Particle Acceleration in Stressed Coronal Magnetic Fields by Turkmani, R, Vlahos, L, Galsgaard, K, Cargill, P. J, Isliker, H

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ENTHALPY-BASED THERMAL EVOLUTION OF LOOPS. III. COMPARISON OF ZERO-DIMENSIONAL MODELS by Cargill, P J, Bradshaw, S J, Klimchuk, J A

“…Zero-dimensional (0D) hydrodynamic models provide a simple and quick way to study the thermal evolution of coronal loops subjected to time-dependent heating…”
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Cluster survey of the high-altitude cusp properties: a three-year statistical study by LAVRAUD, B, FEDOROV, A, BUDNIK, E, GRIGORIEV, A, CARGILL, P. J, DUNLOP, M. W, REME, H, DANDOURAS, I, BALOGH, A

“…The global characteristics of the high-altitude cusp and its surrounding regions are investigated using a three-year statistical survey based on data obtained…”
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