Possible Optical Counterpart for LMC X-4
Abstract
P. Pesch, Warner and Swasey Observatory, communicates: "N. Sanduleak and A. G. D. Philip report that on very deep objective-prism plates taken with the Curtis Schmidt telescope at Cerro Tololo Interamerican Observatory they can confirm that the optical candidate for LMC X-4 (IAUC 3017) has a composite spectrum of OB + M1. However, the same plates show that there is another OB star, also of photographic magnitude about 14 and about 25" directly southeast of the composite star; it is even closer to the x-ray position and should also be considered as an optical candidate."
- Publication:
-
International Astronomical Union Circular
- Pub Date:
- December 1976
- Bibcode:
- 1976IAUC.3023....2P