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Mostrando ítems 31-40 de 54
Valoración de parámetros ionosféricos con ayuda del método Doppler
(1982)
Se determinó teóricamente el corrimiento vertical Doppler en frecuencia como función de los parámetros de transporte y pérdida correspondientes a una ionosfera nocturna con perfil electrónico parabólico. Partiendo de las ...
Magnetic field evolution in neutron stars: one-dimensional multi-fluid model
(2008)
This paper is the first in a series aimed at understanding the long-term evolution of neutron star magnetic fields. We model the stellar matter as an electrically neutral and lightly ionized plasma composed of three moving ...
Magnetic field evolution in neutron stars: one-dimensional multi-fluid model
(EDP SCIENCES S A, 2008-09)
Aims. This paper is the first in a series that aims to understand the long-term evolution of neutron star magnetic fields.
Methods. We model the stellar matter as an electrically neutral and lightly-ionized plasma composed ...
Magnetic flux transport by turbulent reconnection in astrophysical flows
(IOP PUBLISHING LTDBRISTOL, 2012-07-04)
The role of magnetohydrodynamics (MHD) turbulence in astrophysical environments is still highly debated. An important question that permeates this debate is the transport of magnetic flux. This is particularly important, ...
Meteor induced ridge and trough formation and the structuring of the nighttime E‐region ionosphere
(American Geophysical Union, 2006-12-28)
When meteor‐generated plasma trails diffuse into the ionosphere they create large ambipolar electric fields mainly perpendicular to the Earth's geomagnetic field (B) and extending many kilometers from the trail along B. ...
On the weak magnetic field of millisecond pulsars: Does it decay before accretion?
(2018)
Millisecond pulsars are old, fast spinning neutron stars thought to have evolved from classical
pulsars in binary systems, where the rapid rotation is caused by the accretion of matter
and angular momentum from their ...
Two-fluid simulations of the magnetic field evolution in neutron star cores in the weak-coupling regime
(Oxford University Press, 2020)
In a previous paper, we reported simulations of the evolution of the magnetic field in neutron star (NS) cores through ambipolar diffusion, taking the neutrons as a motionless uniform background. However, in real NSs, ...
Characterization of thin polycrystalline silicon films deposited on glass by CVD
(IOP Publishing, 2012-12)
We deposited polycrystalline silicon (poly-Si) thin films on commercial float glass by chemical vapour deposition from trichlorosilane at temperatures between 735 and 870°C. The structural properties of the films were ...
APPLICATION OF REMOTE SENSING IN THE RECONSTRUCTION OF TEMPORAL SERIES OF MESOSPHERIC TEMPERATURE FOR A REGION WITH LOW LATITUDEAplicação de Sensoriamento Remoto na Reconstrução da Série Temporal da Temperatura Mesosférica para uma Região com Baixa Latitude
(Universidade Federal de Santa Maria, 2015)