A. Cowley, D. Crampton and J. B. Hutchings, Dominion Astrophysical Observatory, report that spectrograms of candidate star 12 (IAUC 3184, 3197) obtained at Cerro Tololo Interamerican Observatory show radial-velocity variations (K ~ 25 km/s) in the 3.73-day x-ray period in antiphase with the x-ray pulsations (IAUC 3078). This confirms the star as the optical candidate for the source.
International Astronomical Union Circular
- Pub Date:
- March 1978