Astronomy and Astrophysics – Astronomy
Scientific paper
Oct 1974
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1974mnras.169....7w&link_type=abstract
Monthly Notices of the Royal Astronomical Society, vol. 169, Oct. 1974, p. 7-23. Research supported by the Science Research Cou
Astronomy and Astrophysics
Astronomy
26
Position (Location), Satellite Observation, Spaceborne Astronomy, X Ray Sources, Oao 3, Position Errors, Satellite Orientation, Satellite-Borne Instruments, Signal Detection, Star Trackers, Stellar Spectra
Scientific paper
The agreement between the positions given here and those of the 3U catalog is reasonably satisfactory except in the case of 3U 1728-16 and 3U 0614+09, for each of which the error box lies wholly outside, though close to, the 3U box. The agreement with the Copernicus occultation position for 3U 1758-25, while not wholly satisfactory, is reasonably good. No weight can be given to the agreement with the radio source position for this source, or the discrepancy for 3U 1758-20, both because the association with the radio sources is not on very certain grounds, and because the example of Sco X-1 shows that the radio source need not be coincident with the X-ray source. There is little evidence for the proposed association of 2U sources with bright stars.
Hawkins Frederick J.
Mason Keith O.
Murdin Paul
Penston Margaret J.
Penston Michael V.
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