ON THE ORIGIN OF THE NORTH-SOUTH ASSYMMETRY OF COSMIC RAYS IN HIGH LATITUDES

Journal Article · Sun Jan 01 04:00:00 EST 1961 · Ann. Acad. Sci. Fennicae, Ser. A

OSTI ID:4783217

Hovi, V; Aurela, A

Causes of the nonth-south asymmetry were invest gated by experimental and theoretical methods in Turku, Finland, in the geomagnetic latitude of 58.3 deg N and 50 m. The possible causes were classified into atmospheric, geomagnetic and astrophysical factors. It was shown that the atmospheric factor is, in general, relatively unimportant. At small zenith angles it seems to be, however, the most important source of the asymmetry. The geomagnetic factor cannot produce north-south asymmetry at the present observation place. It was indieated that appreciable astrophysical north-south asymmetry would exist at great zenith angles. A correction formula was derived for asymmetries measured by a telescope with large aperture. The corrections calculated from that formula had, at small zenith angles, an essential influence on results. (auth)

• Research Organization: Univ. of Turku, Finland
• NSA Number: NSA-16-015488
• OSTI ID: 4783217
• Journal Information: Ann. Acad. Sci. Fennicae, Ser. A, Journal Name: Ann. Acad. Sci. Fennicae, Ser. A Vol. Vol: VI, No. 97
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

ANGULAR DISTRIBUTION
ASTROPHYSICS
ATMOSPHERE
COINCIDENCE METHODS
COSMIC RADIATION
COUNTERS
EARTH
GEOMAGNETIC COORDINATES
LEVELS
MAGNETIC FIELDS
MEASURED VALUES
NUMERICALS
PHYSICS
SEA
SEA LEVEL