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1987ApJ...321..425N - Astrophys. J., 321, 425-437 (1987/October-0)
The primary orbit and the absorption lines of HDE 226868 (Cygnus X-1).
NINKOV Z., WALKER G.A.H. and YANG S.
Abstract (from CDS):
Abstract Copyright: ∼
Journal keyword(s): Stars: Individual Henry Draper Number: HDE 226868 - Stars: Individual Constellation Name: Cygnus X-1 - X-Rays: Binaries
Simbad objects: 1
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