Search Results - "JAYANTHI, U. B"

Estimation of peak electron density in upper ionosphere of Mars at high latitude (50°–70°N) using MGS ACC data by Seth, S. P., Jayanthi, U. B., Haider, S. A.

“…Under photochemical equilibrium condition, electron density near peak varies as the square root of total peak ionization rate. Thus by averaging the…”
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Nuclear reactions in the uppermost Earth atmosphere as a source of the magnetospheric positron radiation belt by Gusev, A. A., Jayanthi, U. B., Martin, I. M., Pugacheva, G. I., Spjeldvik, W. N.

“…A physical mechanism for the formation of a natural positron belt in the Earth's magnetosphere is considered. It is assumed that a natural source of energetic…”
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Seasonal polar cap radiation zones in dayside magnetosphere by Pugacheva, G, Gusev, A A, Jayanthi, U B, Schuch, N J, Spjeldvik, W N

“…The phenomenon of quasi-stable trapping of charged particles in the keV to MeV energy range within the polar cusp region of the Earth’s magnetosphere is…”
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Trapped positron flux formation in the innermost magnetosphere of the Earth by Gusev, A. A., Jayanthi, U. B., Pugacheva, G. I., Pankov, V. M., Schuch, N.

“…The possible existence of a positron radiation belt in the inner magnetosphere of the Earth, its space location, flux, energy distribution and the ratio of…”
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Antiprotons confined in the earth’s inner magnetosphere by Pugacheva, G, Gusev, A.A, Jayanthi, U.B, Schuch, N.J, Spjeldvik, W.N, Choque, K.T

“…The possible existence of noticeable fluxes of antiparticles in the Earth magnetosphere is considered theoretically in this article. These antiparticles…”
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Electron precipitation associated with geomagnetic activity: Balloon observation of X ray flux in South Atlantic anomaly by Jayanthi, U. B., Pereira, M. G., Martin, I. M., Stozkov, Y., D'Amico, F., Villela, T.

“…A stratospheric balloon experiment was conducted on December 20, 1994, with an X ray detector to measure fluxes of precipitation electrons in the South…”
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Ring current ion motion in the disturbed magnetosphere with non-equipotential magnetic field lines by Pugacheva, G.I, Jayanthi, U.B, Schuch, N.G, Gusev, A.A, Spjeldvik, W.N

“…Transport of ring current ions during the main phase of the geomagnetic storm is modeled. Particle trajectories are simulated by the Lorentz equation for…”
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Trapped antiprotons produced by cosmic rays in the Earth's magnetosphere by Pugacheva, G., Gusev, A.A., Jayanthi, U.B., Schuch, N.G., Spjeldvik, W.N., Choque, K.T.

“…The existence of significant fluxes of antiparticles in the Earth magnetosphere has been predicted on theoretical considerations in this article. These…”
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Longitudinal distribution of thermospheric densities and ionization rates in the upper atmosphere of Mars at mid-latitude using MGS ACC data by Seth, S.P., Jayanthi, U.B.

“…The Accelerometer Experiment (ACC) onboard Mars Global Surveyor (MGS) measured 1600 density profiles in the upper atmosphere of Mars during aerobraking. These…”
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Modeling of the Near-Earth Low-Energy Antiproton Fluxes by Jayanthi, U. B., Gusev, A. A.

“…The local interstellar antiproton spectrum is simulated taking into account antineutron decay, (He,p) interaction, secondary and tertiary antiproton…”
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Source of magnetospheric antiparticles: Nuclear reactions in rarefied atmospheres by Gusev, A.A, Jayanthi, U.B, Martin, I.M, Pugacheva, G.I, Spjeldvik, W.N

“…The ratio of positron/electron fluxes originated in nuclear reactions in the Earth's magnetosphere is considered. It is supposed that positrons as well as…”
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FEM code simulation of the magnetospheric proton fluxes by Pugacheva, G.I., Gusev, A.A., Jayanthi, U.B., Martin, I.M., Spjeldvik, W.N.

“…We report a study of the numeric solution to the diffusive transport equation for energetic protons magnetically trapped in the Earth's equatorial…”
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Global scale Earth's upper atmosphere monitoring by SACI-1 micro-satellite by Takahashi, H., Neri, J.A., Abdu, M.A., Muralikrishna, P., Jayanthi, U.B., Trivedi, N.B., Sobral, J.H.A., Okano, S., Shepherd, G., Sargoytchev, S., Oyama, K-I, Russell, C.T.

“…The first Brazilian scientific micro-satellite, SACI-1, is scheduled to be launched in the 2nd semester of 1999. It will be placed in a sun-synchronous polar…”
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A mura-based coded mask telescope by Villela, T, Braga, J, D'Amico, F, Jayanthi, U.B

“…A high-energy telescope that employs a Modified Uniformly Redundant Array (MURA) coded mask is described. The imaging device is a 19×19 element square…”
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Cusp confinement zones on quiet and disturbed dayside magnetosphere by Gusev, A.A., Jayanthi, U.B., Pugacheva, G.I., Schuch, N.J., Martin, I.M., Spjeldvik, W.N.

“…The possibility of the charged particle confinement in the dayside regions of magnetosphere cusps is investigated. The analysis, on the basis of Tsyganenko…”
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X-ray observations in the SAA—Pulsations in electron precipitation accompanied by Pc4 events by Jayanthi, U.B, Pereira, M.G, Martin, I.M, Trivedi, N.B, Lazutin, L

“…A balloon experiment conducted on December 20, 1994, in the South Atlantic Anomaly (SAA) region, detected events with increases in x-ray flux due to electron…”
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Low-energy gamma-rays from pulsar GX 1+4-balloon results by JAYANTHI, U. B, JABLONSKI, F, BRAGA, J

“…Data collected by balloon-borne detectors in April 1982 from the GX 1+4 source during zenith are analyzed to search for pulsed emission in low- energy gamma…”
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A balloon-borne imaging telescope for high-energy astrophysics by VILLELA, T, BRAGA, J, D'AMICO, F, JAYANTHI, U. B, NERI, J. A

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Low-energy gamma-rays from pulsar GX 1+4: balloon results by JAYANTHI, U. B, JABLONSKI, F, BRAGA, J

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Cosmic rays and trapped protons as a source of the Earth’s positron radiation belt by N.G. Schuch, G. I. Pugacheva, V. M. Pankov, U. B. Jayanthi, A. A. Gusev

“…The possible existence of a positron radiation belt in the inner magnetosphere of the Earth, its space localization, flux and energy distribution and the ratio…”
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