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1987ApJ...312..739T - Astrophys. J., 312, 739-742 (1987/January-0)
A 9.3 hour orbital period in the potential black hole binary 4U 1957+11.
THORSTENSEN J.R.
Abstract (from CDS):
Abstract Copyright: ∼
Journal keyword(s): Black Holes - Stars: Individual Alphanumeric: 4U 1957+11 - X-Rays: Binaries
Simbad objects: 1
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