High‐Resolution Parallax Measurements of Scorpius X‐1
Authors: C. F. Bradshaw, E. B. Fomalont, and B. J. Geldzahler
Bradshaw, Fomalont, & Geldzahler
1999 The Astrophysical Journal Letters512L121.
Provider: AAS Journals
Caption: Fig. 3.
Sco X‐1 6 cm east‐west (top) and north‐south (bottom) residual positions after removing proper motion. The data points are the weighted average from each VLBA observation date in Table 1. The error is mostly dependent on the core flux density. The sinusoid corresponds to the parallax of 0.36 mas.