Faraday effect in the solar supercorona during its 1977--1982 radio occultations of the Crab Nebula

Journal Article · Fri Jul 01 04:00:00 EDT 1983 · Sov. Astron. Lett. (Engl. Transl.); (United States)

OSTI ID:5143333

Soboleva, N S; Timofeeva, G M

The Faraday rotation of the 8.2- and 13-cm radio emission of the Crab Nebula during its 1977--1982 occultations by the solar supercorona has been measured with the RATAN-600 telescope. The nebula passes south of the sun, coming within roughly-equal5 radii. Supplemented by similar measurements in Japan and in Germany (an occultation of PSR 0525+21), the results indicate that throughout the 11-yr solar cycle from 1971 to 1982 a negative rotation measure predominated (magnetic field directed away from the observer). Neither dipole, radial, nor spiral models for the sun's magnetic field can explain this effect.

• Research Organization: Leningrad Branch, Special Astrophysical Observatory, USSR Academy of Sciences, Pulkovo
• OSTI ID: 5143333
• Journal Information: Sov. Astron. Lett. (Engl. Transl.); (United States), Journal Name: Sov. Astron. Lett. (Engl. Transl.); (United States) Vol. 9:4; ISSN SALED
• Country of Publication: United States
• Language: English

Related Subjects

640104* -- Astrophysics & Cosmology-- Solar Phenomena
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ATMOSPHERES
COSMIC RADIO SOURCES
CRAB NEBULA
ECLIPSE
ELECTROMAGNETIC RADIATION
FARADAY EFFECT
FREQUENCY RANGE
GHZ RANGE
GHZ RANGE 01-100
MAGNETIC FIELDS
NEBULAE
POLARIZATION
RADIATIONS
RADIOWAVE RADIATION
SOLAR CORONA
STELLAR ATMOSPHERES
STELLAR CORONAE
SUPERNOVA REMNANTS