785 research outputs found

    Information-hardware support of systems of the automated electromagnetic monitoring of geodynamic objects

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    In article the structure of an informational-hardware support of the automated system of data processing at electromagnetic monitoring of geodynamic objects is considered. The structure of interrelations of the object-oriented and serving subsystems realizing methodological, program and technical and information support of processes of filing and data processing of geodynamic monitoring is define

    Parity Violation in Neutrino Transport and the Origin of Pulsar Kicks

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    In proto-neutron stars with strong magnetic fields, the neutrino-nucleon scattering/absorption cross sections depend on the direction of neutrino momentum with respect to the magnetic field axis, a manifestation of parity violation in weak interactions. We study the deleptonization and thermal cooling (via neutrino emission) of proto-neutron stars in the presence of such asymmetric neutrino opacities. Significant asymmetry in neutrino emission is obtained due to multiple neutrino-nucleon scatterings. For an ordered magnetic field threading the neutron star interior, the fractional asymmetry in neutrino emission is about 0.006(B/1014G)0.006 (B/10^{14}G), corresponding to a pulsar kick velocity of about 200(B/1014G)200 (B/10^{14}G) km/s for a total radiated neutrino energy of 3×10533\times 10^{53} erg.Comment: AASTeX, 10 pages including 2 ps figures; ApJ Letter in press (March 10, 1998). Shortened to agree with the published versio

    Can Parity Violation in Neutrino Transport Lead to Pulsar Kicks?

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    In magnetized proto-neutron stars, neutrino cross sections depend asymmetrically on the neutrino momenta due to parity violation. However, these asymmetric opacities do not induce any asymmetric flux in the bulk interior of the star where neutrinos are nearly in thermal equilibrium. Consequently, parity violation in neutrino absorption and scattering can only give rise to asymmetric neutrino flux above the neutrino-matter decoupling layer. The kick velocity is substantially reduced from previous estimates, requiring a dipole field B1016B \sim 10^{16}~G to get vkickv_{kick} of order a few hundred km~s1^{-1}.Comment: REVTEX, 4 pages, no figures. Submitted to Phys. Rev. Letter

    Spatio-temporal data processing of automated geodynamic monitoring system

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    System In this paper, an approach to the organization of spatial-temporal processing of geoelectrical data in the system of automated geodynamic control is considered. It allows combining methodical, algorithmic, program and information support of the processes of collecting and processing of geodynamic information at subjects to contro

    The forecasting of the development of suffosion processes in urban on the basis of the geoelectric modeling by the data of the phasometric system of the geodynamic control

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    In this article, techniques and algorithms of the control and forecasting of the karst risk of the territory are considered. The formation of forecast assessments of the development of suffosion processes is carried out on the basis of the computer modeling with the correction of model data on the flexible schedule by results of the monitorin

    The monitoring of the irregular disturbances in the arctic on the basis of the processing data of the distributed network of the geophysical observatories

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    The article discusses a data processing method for geomagnetic field of the earth on a distributed network of geophysical observatories. The proposed method allows to detect and monitor irregular disturbances of the geomagnetic field, evaluate their options, determine the epicenter of the occurrence of disturbances and to estimate the parameters of the epicente
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