Intensity decrease of Cassiopeia A at 13 MHz
Journal Article
·
· Sov. Astron. AJ (Engl. Transl.), v. 19, no. 2, p. 267
OSTI ID:4125328
Radio-emission measurements of ionospheric radio-wave absorption at a frequency of 13 MHz have been made at Gor'kii for many years. Diurnal antenna pattern passages of the Cassiopeia A source were recorded. The signal level of the source is about 25% of the cosmic background radiation level. Data from the autumn months of 1963--1972 were used to determine the secular decrease in source intensity, which amounts to 0.4 +- 0.65% per year. (AIP)
- Research Organization:
- Gorky Radiophysical Institute, USSR
- NSA Number:
- NSA-33-010097
- OSTI ID:
- 4125328
- Journal Information:
- Sov. Astron. AJ (Engl. Transl.), v. 19, no. 2, p. 267, Journal Name: Sov. Astron. AJ (Engl. Transl.), v. 19, no. 2, p. 267; ISSN SAAJA
- Country of Publication:
- United States
- Language:
- English
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