Astronomy and Astrophysics – Astronomy
Scientific paper
Nov 1989
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989esasp.296...45n&link_type=abstract
In ESA, The 23rd ESLAB Symposium on Two Topics in X Ray Astronomy. Volume 1: X Ray Binaries p 45-55 (SEE N90-25711 19-89)
Astronomy and Astrophysics
Astronomy
6
Ginga Satellite, Pulsars, Satellite Observation, Stellar Orbits, X Ray Binaries, Japanese Space Program, Spectrum Analysis, Stellar Oscillations, Stellar Radiation
Scientific paper
Data from Ginga observations of X-ray pulsars is discussed. They include the detection of a finite rate of change of the orbital period in Her X-1, the determination of the braking index of PSR 0540-69 from X-ray pulse timing, the discoveries of new transient X-ray pulsars, the detection of cyclotron line features from Her X-1, 4U 1538-52, V 0332+53 and possibly 1E 2259+586, and the detection of quasi-periodic oscillations phenomena from two X-ray pulsars, Cen X-3 and 4U 1626-67. The detailed investigation of circumstellar matter surrounding the X-ray binary pulsars, through the analysis of energy spectra in the low intensity states, can be performed.
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