Astronomy and Astrophysics – Astronomy
Scientific paper
Nov 1992
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992mnras.259..395c&link_type=abstract
Monthly Notices of the Royal Astronomical Society (ISSN 0035-8711), vol. 259, no. 2, p. 395-400.
Astronomy and Astrophysics
Astronomy
41
Binary Stars, Black Holes (Astronomy), Stellar Orbits, X Ray Sources, Astronomical Photometry, X Ray Astronomy
Scientific paper
We present the results of photometric observations of the black hole candidate GX339-4, obtained while the system was in an 'off' state. We show that a 14.8-h modulation was present, and provide evidence for a similar periodicity in the 'high' state from a reanalysis of previously published photometry and spectroscopy. The presence of the same period in both states implies that it is likely to be the orbital period of the system. The spectroscopy analysis provides evidence for an apparent change in the systemic velocity of the system. The amplitude of the observed radial velocity variations, however, permits only crude limits to be placed on the mass of the compact object. Only absorption-line spectroscopy of the secondary in the 'off' state will provide a convincing mass determination.
Callanan Paul J.
Charles Phil A.
Honey W. B.
Thorstensen John R.
No associations
LandOfFree
The 14.8-h orbital period of GX339-4 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 14.8-h orbital period of GX339-4, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The 14.8-h orbital period of GX339-4 will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1554891