Other
Scientific paper
Oct 1980
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980apj...241..779k&link_type=abstract
Astrophysical Journal, Part 1, vol. 241, Oct. 15, 1980, p. 779-786.
Other
59
Binary Stars, Stellar Models, Stellar Radiation, Variable Stars, X Ray Sources, Bursts, Light Curve, Neutron Stars, Variability, White Dwarf Stars, X Ray Stars
Scientific paper
X-ray observations of the first major outburst of the classical transient X-ray source Centaurus X-4 since its discovery in 1969 are presented. The observations were obtained in May, 1979, with the all-sky monitor on board Ariel 5. The flare light curve is shown to exhibit many of the characteristics of other transients, including a double-peaked maximum, as well as significant, apparently random, variations and a lower peak flux and shorter duration than the 1969 event. Application of a standard epoch-folding technique to data corrected for linear decay trends indicates a possible source modulation at 0.3415 days (8.2 hours). Comparison of the results with previous other data on Cen X-4 and the characteristics of the soft X-ray transients allows a total X-ray output of approximately 3 x 10 to the 43rd ergs to be estimated, and reveals the duration and decay time of the 1979 Cen X-4 outburst to be the shortest yet observed from soft X-ray transients. The observations are explained in terms of episodic mass exchange from a late-type dwarf onto a neutron star companion in a relatively close binary system.
Holt Stephen S.
Kaluzienski L. J.
Swank Jean H.
No associations
LandOfFree
The 1979 X-ray outburst of Centaurus X-4 does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with The 1979 X-ray outburst of Centaurus X-4, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The 1979 X-ray outburst of Centaurus X-4 will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-947684