Accession Number : AD0813461

Title :   MEASUREMENTS OF THE CENTER-LIMB VARIATION IN THE H- AND K-LINES OF CAII IN UNDISTURBED AND ACTIVE REGIONS ON THE SUN,

Corporate Author : OSLO UNIV (NORWAY) INST OF THEORETICAL ASTROPHYSICS

Personal Author(s) : Engvold, Oddbjoern

Report Date : 1966

Pagination or Media Count : 9

Abstract : The center-limb variation of delta lambda sub 2, defined as half the distance between the emission peaks in the doubly reversed H- and K-lines is investigated. In undisturbed regions the center-limb variation may be represented by a well defined smooth curve. This is not the case in active regions although there is a tendency for the delta lambda sub 2 to increase towards the limb. The difference between the measurements in the H- and K-lines is probably due to a systematic error in the observed delta lambda sub 2 in the H-line.

Descriptors :   (*SOLAR SPECTRUM, LINE SPECTRA), SOLAR RADIATION, CHROMOSPHERE, PHYSICAL PROPERTIES, NORWAY.

Subject Categories : Astrophysics

Distribution Statement : APPROVED FOR PUBLIC RELEASE