Constancy of intermediate-degree p-mode frequencies during the declining phase of solar cycle 21

Journal Article · Tue Mar 01 00:00:00 EST 1988 · Astrophys. J.; (United States)

DOI:https://doi.org/10.1086/166109· OSTI ID:7222508

Rhodes, Jr, E J; Woodard, M F; Cacciani, A; Tomczyk, S; Korzennik, S G

A comparison was made between two sets of frequencies of intermediate-degree solar p-mode oscillations obtained in late 1981 and mid-1984. Good agreement was found at the 0.02 microHz level despite the 2.6 yr interval separating the two sets of observations. In particular, a comparison was made between the frequencies of 573 modes obtained at the South Pole during December 24-25, 1981 and those of the same modes as observed at the Mount Wilson Observatory 60-ft Solar Tower during July 29-August 13, 1984. The present results are consistent with no change in intermediate-degree p-mode frequencies between late 1981 and mid-1985. 17 references.

• Research Organization: Southern California Univ., Los Angeles (USA); California Institute of Technology, Pasadena (USA); California Univ., Los Angeles (USA)
• OSTI ID: 7222508
• Journal Information: Astrophys. J.; (United States), Vol. 326
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
SUN
OSCILLATIONS
COMPARATIVE EVALUATIONS
SOLAR CYCLE
VARIATIONS
MAIN SEQUENCE STARS
STARS
640104* - Astrophysics & Cosmology- Solar Phenomena