204 citations · 1.4k across the 52 of their papers we have counts for
18 papers · 1 filter
Photospheric response to a flare
Michael S. Wheatland, Donald B. Melrose, Alpha Mastrano
Flares produce sudden and permanent changes in the horizontal photospheric magnetic field. In particular flares generally produce increased magnetic shear in the photospheric field…
Rethinking the solar flare paradigm
D. B. Melrose
It is widely accepted that solar flares involve release of magnetic energy stored in the solar corona above an active region, but existing models do not include the explicitly time…
Is Cyclotron Maser Emission in Solar Flares Driven by a Horseshoe Distribution?
D. B. Melrose, M. S. Wheatland
Since the early 1980s, decimetric spike bursts have been attributed to electron cyclotron maser emission (ECME) by the electrons that produce hard X-ray bursts as they precipitate…
Visibility of pulsar emission: motion of the visible point
R. Yuen, D. B. Melrose
A standard model for the visibility of pulsar radio emission is based on the assumption that the emission is confined to a narrow cone about the tangent to a dipolar field line. Th…
Non-corotating models for pulsar magnetospheres
Donald B. Melrose, Rai Yuen
We reconsider pulsar electrodynamics for an obliquely rotating pulsar, and propose a way of synthesizing the vacuum dipole model (VDM) and the rotating magnetosphere model (RMM). W…
Bulk Energization of Electrons in Solar Flares by Alfvén Waves
D. B. Melrose, M. S. Wheatland
Bulk energization of electrons to keV in solar flares is attributed to dissipation of Alfvén waves that transport energy and potential downward to an acceleration regi…
Transfer of Energy, Potential, and Current by Alfvén Waves in Solar Flares
D. B. Melrose, M. S. Wheatland
Alfvén waves play three related roles in the impulsive phase of a solar flare: they transport energy from a generator region to an acceleration region; they map the cross-field pot…
Pulsar electrodynamics revisited
Donald B. Melrose, Rai Yuen
The inductive electric field is unjustifiably neglected in most models for pulsar electrodynamics; it cannot be screened by the magnetospheric plasma, and it is not small in compar…
Changes in Polarization Position Angle across the Eclipse in the Double Pulsar System
R. Yuen, R. N. Manchester, M. Burgay +4
We investigate the changes in polarization position angle in radiation from pulsar A around the eclipse in the Double Pulsar system PSR J0737-3039A/B at the 20 cm and 50 cm wavelen…
Magnetic explosions: role of the inductive electric field
D. B. Melrose
Inclusion of the inductive electric field, due to the temporally changing , in magnetic explosions is discussed, with emphasis on solar flares. Several…
Generic model for magnetic explosions applied to solar flares
D. B. Melrose
An accepted model for magnetospheric substorms is proposed as the basis for a generic model for magnetic explosions, and is applied to solar flares. The model involves widely separ…
Observations and modelling of pulsed radio emission from CU Virginis
K. K. Lo, J. D. Bray, G. Hobbs +6
We present 13 cm and 20 cm radio observations of the magnetic chemically peculiar star CU Virginis taken with the Australia Telescope Compact Array. We detect two circularly polari…
Obliquely rotating pulsars: screening of the inductive electric field
D. B. Melrose, Rai Yuen
Pulsar electrodynamics has been built up by taking ingredients from two models, the vacuum-dipole model, which ignores the magnetosphere but includes the inductive electric field d…
Faraday rotation: effect of magnetic field reversals
D. B. Melrose
The standard formula for the rotation measure, RM, which determines the position angle, , due to Faraday rotation, includes contributions only from the portions of t…
Pulsar current revisited
N. Vranešević, D. B. Melrose
The pulsar current, in the -- plane where is the pulsar period and is the period derivative, is used as a supposedly ``model free'' way to estimate the…
Observations of radio pulses from CU Virginis
V. Ravi, G. Hobbs, D. Wickramasinghe +7
The magnetic chemically peculiar star CU Virginis is a unique astrophysical laboratory for stellar magnetospheres and coherent emission processes. It is the only known main sequenc…
Coherent Emission
D. B. Melrose
The theory of plasma emission and of electron cyclotron maser emission, and their applications to solar radio bursts and to Jupiter's DAM and the Earth's AKR are reviewed, emphasiz…
Acceleration Mechanisms
D. B. Melrose
Glossary I. Background and context of the subject II. Stochastic acceleration III. Resonant scattering IV. Diffusive shock acceleration V. DSA at multiple shocks VI. Applications o…