Radio radiation of the Casseopeia A and Crab nebula supernova remnants from results of absolute measurements in the meter wavelength range

Journal Article · Sat Oct 01 04:00:00 EDT 1988 · Radiophys. Quantum Electron. (Engl. Transl.); (United States)

DOI:https://doi.org/10.1007/BF01034448· OSTI ID:6031221

Agafonov, M I

Flux densities of radio emissions from the Crab nebula at frequencies of 81.5 and 140 MHz with values of 1731 Jy (/plus minus/5.8%) and 1526 Jy (/plus minus/6%) were determined in the period 1984-1985. The instantaneous spectrum of this radio source in 1984 over the range 80-10000 MHz was constructed. Data on the secular decrease of Casseopeia A flux were refined. At frequencies of 81.5 and 152 MHz the flux decreases comprise 1.25/plus minus/0.06 and 1.06/plus minus/0.15% respectively. The radiation from the radio source Cygnus A was found to be highly stable, as compared to 1966 data.

• OSTI ID: 6031221
• Journal Information: Radiophys. Quantum Electron. (Engl. Transl.); (United States), Journal Name: Radiophys. Quantum Electron. (Engl. Transl.); (United States) Vol. 31:4; ISSN RPQEA
• Country of Publication: United States
• Language: English

Related Subjects

640102* -- Astrophysics & Cosmology-- Stars & Quasi-Stellar
Radio & X-Ray Sources
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
COSMIC RADIO SOURCES
COSMIC RAY FLUX
CRAB NEBULA
ELECTROMAGNETIC RADIATION
EMISSION SPECTRA
FLUX DENSITY
FREQUENCY RANGE
GHZ RANGE
GHZ RANGE 01-100
MHZ RANGE
NEBULAE
RADIATION FLUX
RADIATIONS
RADIOWAVE RADIATION
REMOTE SENSING
SPECTRA
SUPERNOVA REMNANTS