Radio flux density and pulse profile of pulsars at 102. 5 and 61 MHz

Journal Article · Thu Mar 01 04:00:00 EST 1979 · Sov. Astron. AJ (Engl. Transl.); (United States)

OSTI ID:5943534

Izvekova, V A; Kuz'min, A D; Malofeev, V M; Shitov, Y P

A survey of pulsars at 102.5-MHz frequency has been initiated as part of a Soviet--Australian cooperative program in radio astronomy. The pulse energy of 32 pulsars and the mean pulse profile of 25 pulsars have been determined with the cophased antenna array of the Lebedev Physics Institute. The spectral index and its frequency dependence are established for the radio emission of a statistical mean pulsar. The measured mean pulse profiles are compared with those recorded at higher frequencies. At low frequencies the mean profile either broadens or maintains a constant width. Compound profiles generally become simpler. In pulsars whose pulses have two components, the interval separating them widens toward lower frequencies; this relationship has the same behavior for all pulsars.

• Research Organization: Lebedev Physics Institute, Academy of Sciences of the USSR, Moscow
• OSTI ID: 5943534
• Journal Information: Sov. Astron. AJ (Engl. Transl.); (United States), Journal Name: Sov. Astron. AJ (Engl. Transl.); (United States) Vol. 23:2; ISSN SAAJA
• Country of Publication: United States
• Language: English

Related Subjects

640103* -- Astrophysics & Cosmology-- Quasi-Stellar
Radio
& X-Ray Sources-- (-1987)
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
COSMIC RADIO SOURCES
ELECTROMAGNETIC RADIATION
ENERGY SPECTRA
FLUX DENSITY
FREQUENCY RANGE
MHZ RANGE
MHZ RANGE 01-100
MHZ RANGE 100-1000
PULSARS
RADIANT FLUX DENSITY
RADIATIONS
RADIOWAVE RADIATION
SPECTRA