Accession Number:

AD0678442

Title:

TWO PROMINENCE ERUPTIONS AND THE PROBLEM OF EMISSION.

Descriptive Note:

Technical rept. 15-29 Jan 68,

Corporate Author:

PALOMAR OBSERVATORY PASADENA CALIF

Personal Author(s):

Report Date:

1968-10-01

Pagination or Media Count:

21.0

Abstract:

Two flare unconnected eruptions on January 15 and 29, 1968, are discussed. The first is a filament which turns bright and erupts upward, reappearing an hour later. The second is a large eruptive arch seen against the disk. The arch is bright at the top of its trajectory, turns dark, but produces chromospheric emission at the point of impact. The emission at the top of the arch is ascribed to the velocity shift of the illuminating chromospheric H-alpha line. It is shown that such emission will occur only if the motion is transverse to the line of sight and the prominence is optically thin. Author

Subject Categories:

  • Astrophysics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE