Correlative studies of the solar wind. The interplanetary magnetic field, and their effects on the geomagnetic cavity using Explorer 33 and 35 data

The work completed in the study of the effects of the solar wind and interplanetary magnetic field on the bow shock and geomagnetic cavity is reported along with work underway but not yet completed. The correlative data from Explorer 33 and 35, and the computer programs for processing the data are described. The research discussed includes: polar cusps, substorms, geomagnetic activity, and North-South component of the interplanetary magnetic field. Lists of publications, and papers presented at meetings are included

Magnetic latitude effects in the solar wind

The Weber-Davis model of the solar wind is generalized to include the effects of latitude. The principal assumptions of high electrical conductivity, rotational symmetry, the polytropic relation between pressure and density, and a flow-alined field in a system rotating with the sun, are retained. An approximate solution to the resulting equations for spherical boundary conditions at the base of the corona indicates a small component of latitudinal flow toward the solar poles at large distances from the sun as result of latitudinal magnetic forces

Effects of interstellar particles upon the interplanetary magnetic field

The flow of interstellar neutral particles into the interplanetary medium and their subsequent ionization in the presence of the electromagnetic field of the solar wind can cause a loss of field angular momentum by the solar wind. One effect of this loss of field angular momentum is a significant unwinding of the spiral field. This effect is evaluated using simple models for neutral density and ion production. For a free-stream interstellar medium with a neutral hydrogen density of 1 per cubic centimeter and a velocity relative to the sun of 10 to 20 km per second, the spiral angle at the orbit of Jupiter will be less than its nominal value of 45 deg at the orbit of the earth

Stage-Coach Days In The Bluegrass

When Stage-Coach Days in the Bluegrass was first published in 1935 by the Standard Press in Louisville, the New York Times reviewer described this charming work as an interesting example of that very useful class of books, local histories, which so rarely get the attention they deserve. Along with his focus on the development of stage-coach travel, Coleman covers details such as pioneer roads, taverns, travelers\u27 experiences, mail carriers, and the coming of the railroad. This fascinating look at an age gone by is truly a work of regional culture. J. Winston Coleman, Jr. (1898-1983) was a Kentucky historian and collector of Kentuckiana who wrote more than a dozen books and numerous articles on the state.https://uknowledge.uky.edu/upk_united_states_history/1103/thumbnail.jp

Study of low frequency hydromagnetic waves using ATS-1 data

Low frequency oscillations of the magnetic field at ATS-1 were analyzed for the 25 month data interval, Dec., 1966 through 1968. Irregular oscillations and those associated with magnetic storms were excluded from the analysis. Of the 222 events identified, 170 were found to be oscillating predominantly transverse to the background magnetic field. The oscillations were observed to occur most frequently in the early afternoon hours. They also seemed to occur more frequently during Dec., Jan., and Feb. than at any other time of the year. During a given event, the frequency was fairly constant. The event duration varied between a minimum of 10 min. and a maximum of 14 hrs and 26 min. During a given event the amplitude varied

Apollo particles and fields subsatellite magnetometer experiment

The results of the Apollo 15 subsatellite magnetometer experiment are reported. The magnetometer is described including the operation, and specifications. Orbit plots presented are altitude versus time, selenographic longitude versus latitude, and the ecliptic projection of the earth-moon system. The lunar magnetic field, solar wind interaction with the moon, the transfer function of the moon, and the plasma sheet interaction with the moon are discussed

Mariner Venus-Mercury flyby mission Final report

Design of magnetometer system for Mariner Venus-Mercury 197

Support of the Third Solar Wind conference

The program of invited talks at the Third Solar Wind Conference is provided, with a table of contents of the proceedings