Homology of solar flare-associated radio events

✍ Scribed by A. D. Fokker

• Publisher: Springer
• Year: 1967
• Tongue: English
• Weight: 446 KB
• Volume: 2
• Category: Article
• ISSN: 0038-0938
• DOI: 10.1007/bf00147846

✦ Synopsis

The concept of homology, introduced by for optical flares, can be extended to flare-associated radio events. Successive flares within the same centre of activity sometimes produce radio events that are remarkably similar. The similarity amounts to the fact that they extend over about the same range(s) in frequency, producing at each frequency responses of comparable intensity and duration. On some occasions the intensity curves at individual frequencies show even detailed resemblance. The occurrence of homologous radio events is commonly restricted to periods of less than 48 hours.

Without being homologous, radio events that occur in the same centre of activity may present a common characteristic that is typical for that centre. Two such characteristics are (1) the production of radio responses at centimetric, decimetric and metric frequencies, and (2) the impulsiveness of microwave outbursts. The distribution of time intervals during which such bursts occur is compared with the same distribution for homologous events (Figure ).