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Short-period pulsations observed simultaneously by X-ray and radio waves

โœ Scribed by S. S. Degaonkar; T. Takakura; P. Kaufmann; J. E. R. Costa; K. Ohki; N. Nitta


Publisher
Springer
Year
1983
Tongue
English
Weight
65 KB
Volume
86
Category
Article
ISSN
0038-0938

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โœฆ Synopsis


From simultaneous high-time-resolution observations of solar X-rays from Hinotori and the millimeter waves at Itapetinga Radio Observatory in Brazil during a solar flare on November 4, 1981 at 1827 UT, short period (~ 300 ms) pulsations have been detected in five time intervals of 2 s each. Both a cross-correlation analysis between X-rays and microwaves and a Fourier analysis were made to verify the significance of the quasi-periodic pulsations.

The cross-correlation is significant but the pulsations could not be periodic oscillation.

(A more detailed version of essentially the same paper was published by T.


๐Ÿ“œ SIMILAR VOLUMES


LMC X-4: 13.5 s pulsations and an X-ray
โœ W. Pietsch; M. Pakull; W. Voges; R. Staubert ๐Ÿ“‚ Article ๐Ÿ“… 1985 ๐Ÿ› Springer Netherlands ๐ŸŒ English โš– 340 KB

EXOSAT observed LMC X-4 on November 17/19, 1983 for one 1.4 day binary period during the high state of the 30.5 day cycle. An eclipse with sharp ingress and slow egress was detected with an eclipse angle of 27.1+1.0 dgr. In the medium energy experiment the source showed 'a hard power law spectrum. O