Statistical study of solar type III bursts and auroral kilometric radiation onsets

Technical Report · Tue Oct 01 04:00:00 EDT 1985

OSTI ID:6009400

Farrell, W M; Gurnett, D A

Simultaneous occurrences of type III solar radio bursts and auroral kilometric radiation were observed by Calvert using ISEE 1 spectrograms. He presented evidence suggesting that the incoming type III burst stimulates the onset of auroral kilometric radiation (AKR). This paper presents a statistical study of the correlation between type III bursts and auroral kilometric radiation. A superposed epoch analysis was performed on as many as 186 type III events. The type III bursts were detected by the ISEE 3 spacecraft on the sunward side of the earth. At the same time the IMP 8 spacecraft was used to detect onsets of kilometric radiation on the nightside of the earth. For each event the intensities measured by ISEE 3(type III intensities) were subtracted from the intensities measured by IMP 8 (type III and possible AKR intensities). The resulting intensities for each event were then added to determine if kilometric radiation was preferentially observed following a type III burst. This analysis was performed at frequencies of 100, 178, and 500 kHz. The results of this study show that a statistically significant correlation exists between incoming type III bursts from the sun and kilometric radiation from the earth.

• Research Organization: Iowa Univ., Iowa City (USA). Dept. of Physics and Astronomy
• OSTI ID: 6009400
• Report Number(s): AD-A-162717/3/XAB
• Country of Publication: United States
• Language: English

Related Subjects

640104* -- Astrophysics & Cosmology-- Solar Phenomena
640201 -- Atmospheric Physics-- Auroral
Ionospheric
& Magetospheric Phenomena
640203 -- Atmospheric Physics-- Magnetospheric Phenomena-- (-1987)
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
AURORAE
CORRELATIONS
DATA ANALYSIS
ELECTROMAGNETIC RADIATION
LONG WAVE RADIATION
RADIATIONS
RADIOWAVE RADIATION
SATELLITES
SOLAR ACTIVITY
SOLAR RADIO BURSTS