Roles of Flow Braking, Plasmaspheric Virtual Resonances, and Ionospheric Currents in Producing Ground Pi2 Pulsations
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Kazue Takahashi↗
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Results for “PULSATIONS”
Search indexed NASA NTRS and DOE OSTI research on propulsion, heat transfer, battery materials and energy systems. Follow report and document links to the original sources.
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HL Dra: an active Algol-like binary system with a pulsating component star and a cool third body
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Xiang-dong Shi↗
Multipoint observations of compressional Pc5-6 pulsations in the dawn side magnetosphere: A case study
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G.I. Korotova↗
Auroral zone pearl pulsations
Characteristics of pearl micropulsations in auroral zone and relation to electron precipitation
AURORAL ZONE↗
Regularities in the excitation of short-period pulsations in the middle latitudes
Regularities in excitation of short period pulses in middle latitudes of earth currents - geophysics
GEOPHYSICS↗
Calculation of rectangular orthotropic plates lying on an elastic foundation with two foundation moduli and subjected to static and pulsating loads
Method of initial parameters used in differential equations for bending and internal stress forces occurring in rectangular orthotropic plates lying on elastic foundation
RECTANGULAR PLATE↗
On the pulsation hypothesis for massive red supergiants
Red supergiant pulsar hypothesis using Q values derived from stellar luminosity, period, and spectrum
Stothers, R.↗
Simultaneous observations of a pulsating radio source over a 5,000 km baseline.
Pulsar CP 1919 observed simultaneously at Arecibo and Stanford, discussing interstellar scintillation as possible explanation for amplitude variations
Comella, J. M.↗
A criterion for nuclear-energized pulsational instability
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Simon, N. R.↗
Two new pulsating radio sources.
Two pulsars discovered during search with transit telescope at U.S. National Radio Astronomy Observatory, tabulating pulsar parameters
Huguenin, G. R.↗
Photoelectric spectrophotometry of the Crab pulsating radio source NP 0532.
Crab Nebula pulsar NP 0532 photoelectric spectrophotometry results, noting main pulse and interpulse spectral energy distributions similarity to extended synchrotron radiation
Oke, J. B.↗
Electron precipitation pulsations
Electron precipitation modulation exponential dependence on micropulsation amplitude derived from idealized model
Coroniti, F. V.↗
Hemolysis near an ultrasonically pulsating gas bubble
Erythrocyte suspension subjected to gas bubble ultrasonic oscillation, investigating hemolysis mechanism
Rooney, J. A.↗
Short time-scale optical pulsations in the night sky background
A network of monitoring stations designed to detect large scale fluorescence emission in the atmosphere has been in operation for over two years. The motivation for the search arises from the prediction that an energetic photon burst would be produced in a supernova and this burst, when absorbed in the atmosphere, would produce fluorescence. This paper reports on observations up to February 1971. No supernova-like events have been found, although 4.4 were expected. One class of non-fluorescence events is described that evidence suggests is related to electrical discharge in the atmosphere. Another type of non-fluorescence pulse appears to be related to particle precipitation in the atmosphere.
Bertsch, D. L.↗
Mechanism for the X-ray pulsations in Cyg X-1.
The mechanism proposed involves the occurrence of a flare in a region of high magnetic field on the surface of a star. The flare produces oscillations in the magnetic field structure. The oscillations lead to heating of the plasma in a flux tube which emits thermal radiation. The heating may be caused by magnetic pumping or particles accelerated in periodic bursts by the flare. Synchrotron radiation from high energy particles accounts for the hard X-ray emission.
Blumenthal, G. R.↗
Total-pressure measurement in pulsating flows
Pneumatic-type probe was used as comparison instrument with total pressure tubes to determine true average pressure and, thus, to determine if nonlinear averaging effects were significant. Since pneumatic probe is more complicated to use than a total-pressure tube, it is used only as a comparison instrument to determine extent of averaging effects.
Krause, L. N.↗
Solar flare produced pulsations in meter and X-ray wavelengths
The mechanism responsible for the modulation of synchrotron radiation in the meter wave range by a solar flare is examined. The proposed explanation is based on the interaction of a flare generated shock front with a magnetic flux tube extending out into the corona over the flare. As the shock wave propagates through the flux tube, Alfven waves are developing and travelling up the tube toward each other, thereby accelerating electrons and protons by the Fermi mechanism and thus filling the top of the flux tube with energetic electrons. Radial oscillations develop as the shock front becomes parallel to the magnetic field direction and the intensity of the synchrotron radiation is modulated by these oscillations. An OSO-5 experiment detected a hard X-ray burst associated with the flare that produced modulated radio emission and X-ray modulations that are attributed to density fluctuations in the X-ray bursts.
Frost, K. J.↗