You need JavaScript to view this

Motions and solar magnetic fields

Conference:

Abstract

Fine structure of magnetic fields in the Sun has been investigated. The data of the Soviet solar stratospheric observatory (SSO) with the telescope with a mirror first of 50 and then 100 cm in diameter obtained for the period of 1970-1973 served as material for research. The experiments give evidence of the presence of photospheric granulation with the characteristic dimension of granules below 150 km. The angular resolution of instruments does not make it possible to realize direct measurements of magnetic fields of such sizes. The indirect estimates indicate the fact that the magnetic fields of photosphere cannot be less than 10/sup 2/ Oe. A comparison of Hsub(..cap alpha..) lines with lines of metals and with the continuous spectrum shows that the least dimensions of chromosphere elements account for 500 km. Since in chromosphere density decreases drastically, than in order to suppress hydrodynamic flows fields should be of the order of 10/sup 3/ Oe. It has been concluded that the problem of the origin and evolution of the magnetic field of the Sun should be also solved by applying data on other stars.
Authors:
Krat, V A [1] 
  1. AN SSSR, Leningrad. Glavnaya Astronomicheskaya Observatoriya
Publication Date:
Feb 01, 1977
Product Type:
Conference
Reference Number:
AIX-10-419793; EDB-79-070695
Resource Relation:
Journal Name: Izv. Akad. Nauk SSSR, Ser. Fiz.; (USSR); Journal Volume: 41:2; Conference: 8. international seminar on active processes on the Sun and solar neutrino problem, Leningrad, USSR, 25 - 27 Sep 1976
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; CHROMOSPHERE; MAGNETIC FIELDS; PHOTOSPHERE; BALMER LINES; GASES; MOTION; SOLAR GRANULATION; SUNSPOTS; ATMOSPHERES; FLUIDS; SOLAR ACTIVITY; SOLAR ATMOSPHERE; 640104* - Astrophysics & Cosmology- Solar Phenomena
OSTI ID:
6208343
Country of Origin:
USSR
Language:
Russian
Other Identifying Numbers:
Journal ID: CODEN: IANFA
Submitting Site:
INIS
Size:
Pages: 235-241
Announcement Date:

Conference:

Citation Formats

Krat, V A. Motions and solar magnetic fields. USSR: N. p., 1977. Web.
Krat, V A. Motions and solar magnetic fields. USSR.
Krat, V A. 1977. "Motions and solar magnetic fields." USSR.
@misc{etde_6208343,
title = {Motions and solar magnetic fields}
author = {Krat, V A}
abstractNote = {Fine structure of magnetic fields in the Sun has been investigated. The data of the Soviet solar stratospheric observatory (SSO) with the telescope with a mirror first of 50 and then 100 cm in diameter obtained for the period of 1970-1973 served as material for research. The experiments give evidence of the presence of photospheric granulation with the characteristic dimension of granules below 150 km. The angular resolution of instruments does not make it possible to realize direct measurements of magnetic fields of such sizes. The indirect estimates indicate the fact that the magnetic fields of photosphere cannot be less than 10/sup 2/ Oe. A comparison of Hsub(..cap alpha..) lines with lines of metals and with the continuous spectrum shows that the least dimensions of chromosphere elements account for 500 km. Since in chromosphere density decreases drastically, than in order to suppress hydrodynamic flows fields should be of the order of 10/sup 3/ Oe. It has been concluded that the problem of the origin and evolution of the magnetic field of the Sun should be also solved by applying data on other stars.}
journal = {Izv. Akad. Nauk SSSR, Ser. Fiz.; (USSR)}
volume = {41:2}
place = {USSR}
year = {1977}
month = {Feb}
}