Other
Scientific paper
Jan 1986
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986apj...300..551c&link_type=abstract
Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 300, Jan. 15, 1986, p. 551-556.
Other
27
Elliptical Orbits, Stellar Orbits, X Ray Binaries, Companion Stars, Eccentric Orbits, Light Curve, Stellar Models
Scientific paper
The X-ray source GX 1 + 4 (4U 1728-24) was observed by the high-energy X-ray spectrometer on OSO 8 for five days from September 20-24, 1978, and X-rays in the energy range 16-72 keV were analyzed. Measurements of the pulse period, pulsar angular acceleration, and luminosity of GX 1 + 4 are reported. The pulsar light curves obtained in different energy ranges are presented, and it is concluded that the period is about 220 s rather than about 110 s. The observations are combined with those reported by others, and a history of GX 1 + 4 as observed in hard X-rays is presentd. A continuous function for the change in period is inferred that suggests a 304-day periodicity. It is proposed that such a period in the spin-up could be caused by an elliptical orbit of GX 1 + 4 about its red giant companion.
Cutler E. P.
Dennis Brian R.
Dolan James F.
No associations
LandOfFree
An elliptical binary orbit model of GX 1 + 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 An elliptical binary orbit model of GX 1 + 4, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and An elliptical binary orbit model of GX 1 + 4 will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1844543