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astro-ph2000★ 36 cited
On the multi-periodicities in the X-ray dipper XB 1916-053
L. Homer, P. A. Charles, P. Hakala +4
Using the Rossi X-ray Timing Explorer and the Nordic Optical Telescope we have obtained the highest ever quality X-ray/white-light high-speed photometry of XB 1916-053. We refine t…
astro-ph2000
The Off State of GX 339-4
A. K. H. Kong, E. Kuulkers, P. A. Charles +1
We report BeppoSAX and optical observations of the black hole candidate GX 339-4 during its X-ray `off' state in 1999. The broad-band (0.8-50 keV) X-ray emission can be fitted by a…