Accession Number:

ADA170064

Title:

Relationship between Weak Local Radio Sources at Wavelength = 6.6 cm and Active Region Characteristics, II.

Descriptive Note:

Technical document. Jun-Jul 77,

Corporate Author:

NAVAL OCEAN SYSTEMS CENTER SAN DIEGO CA

Report Date:

1977-07-20

Pagination or Media Count:

9.0

Abstract:

The evolution of active regions can be raced most clearly by observing the appearance of weak local sources l.s. avobe flocculi during the appearance and disapearance of sunspots. In th first part of our work, we conducted a comparison of active region characteristics with processed solar-strip chart data done during 1964 at 6.6 cm. It was found that the weak l.s. radio emission flux of the S-component correlated well with the area of the sunspot groups but very poorly with the area of the floccular region. It is proposed that the small correlation coefficient for 1.s. flux and area of the separate floccular regions is a consequence of the overall area of the region occupied by the flocculus being utilized for the calculation rather than just the areas of the small intense knots. Therefore, the processed observational material was obtained on the AFR-2 chromosphere telescope at the Institute of Astronomy of the Uzbeck SSR Academy of Sciences. As a result of the small values obtained for the correlation coefficient of l.s. emission flux and floccular area, one may assume that a possible interrelationship of l.s. radio emission capability and floccular region enhancement in the optical wave range can be shown.

Subject Categories:

  • Astrophysics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE