Download or read book Evaporation of the Solar Corona Into Interplanetary Space written by Hari K. Sen and published by . This book was released on 1965 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Evaporation of the Solar Corona Into Interplanetary Space written by Hari K. Sen and published by . This book was released on 1965 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: A simple kinetic theory model of the interplanetary gaseous medium based on the evaporation of particles from the solar coronal exosphere is considered, using Jeans' equation for the escape of gases from planetary atmospheres. The exosphere is fixed in the corona at a level (four times the solar radius) where the mean free path is comparable with the scale height. Equality of flux for the protons and electrons at the exosphere is assumed, so that the sun may not build up an inordinately high charge. Ingham's density value is used at the exosphere, where the temperature is assumed to be 1,000,000 degrees K. The electric potential at the exosphere is found to be about 488 volts and is almost equal and opposite to the gravitational potential for the protons so that the protons are virtually weightless. Computed particle density values are in good agreement with the observational data of van de Hulst, Vitkevitch and Slee. The theoretical proton (particle) flux and velocity near the earth are, respectively, 1.47 x 10 to the 8th power 1/sq-cm sec, and 147 km/s. These values are in order-of-magnitude agreement with the Lunik II, Explorer X, and Mariner II data. The order-of-magnitude agreement does not depend critically on the value at the exospheric level or on making the protons actually weightless. (Author).

Download or read book The Electric Field in the Solar Coronal Exosphere and the Solar Wind written by Hari K. Sen and published by . This book was released on 1968 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt: The solar coronal exosphere (fixed at a level where the mean free path is comparable with the scale height) is shown to act like the sheath in a laboratory discharge, that builds up an excess positive charge and electric field. Equality of flux for the charged particles (protons and electrons) at the exosphere is assumed. The value of exospheric electric potential makes the protons virtually weightless. The exospheric sheath potential accelerates the thermal protons to a velocity of 258 km/sec, with which they coast to the earth. The proton density in transit varies approximately as the inverse square law. Higher velocities and densities are obtained for higher coronal temperatures. An estimate of the exospheric transition region is obtained by applying the hydrodynamic theory of ambipolar diffusion in a gravitational field to the observed coronal density distribution. (Author).

Download or read book Shock Waves in the Solar Corona and Interplanetary Space written by Slovenská akadémia vied and published by . This book was released on with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Oxygen Atom Determination in the Upper Atmosphere by Chemiluminescence of Nitric Oxide written by D. Golomb and published by . This book was released on 1965 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Measurements in the Radiation Belts from Hitch Hiker I written by F. R. Paolini and published by . This book was released on 1965 with total page 38 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book OAR Cumulative Index of Research Results written by United States. Air Force. Office of Aerospace Research and published by . This book was released on 1965 with total page 586 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book OAR Quarterly Index of Current Research Results written by United States. Air Force. Office of Aerospace Research and published by . This book was released on 1965 with total page 576 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Giant Desiccation Polygons of Great Basin Playas written by James T. Neal and published by . This book was released on 1965 with total page 50 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Jet stream Structure Over the Central United States Determined from Aircraft Observations written by R. M. Endlich and published by . This book was released on 1965 with total page 18 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Environmental Research Papers written by and published by . This book was released on 1965 with total page 128 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Radio Star Scintillation During the July 20 1963 Eclipse written by R. S. Allen and published by . This book was released on 1965 with total page 22 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book A Catalogue of ARCAS ROBIN Soundings written by Robert W. Lenhard and published by . This book was released on 1965 with total page 34 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Seasonal Atmospheric Attenuation Measurements at 3 27 Cm Wavelength written by John P. Castelli and published by . This book was released on 1965 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Rocket Optical Observation of a Day time Aurora written by S. M. Silverman and published by . This book was released on 1965 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Data Previous to the International Geophysical Year I 5577 OI Line at Sacramento Peak New Mexico written by G. J. Hernandez and published by . This book was released on 1965 with total page 64 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Space and Planetary Environments written by Shea L. Valley and published by . This book was released on 1962 with total page 240 pages. Available in PDF, EPUB and Kindle. Book excerpt: