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The Rate of Component Separation in SCO X-1

Published online by Cambridge University Press:  04 August 2017

B. J. Geldzahler ,
E. B. Fomalont ,
R. M. Hjellming  and
C. M. Wade
B. J. Geldzahler
Affiliation:
1E. O. Hulburt Center for Space Research, Naval Research Laboratory, Washington, D. C. 20375 3NRC/NRL Cooperative Research Associate
E. B. Fomalont
Affiliation:
1E. O. Hulburt Center for Space Research, Naval Research Laboratory, Washington, D. C. 20375
R. M. Hjellming
Affiliation:
1E. O. Hulburt Center for Space Research, Naval Research Laboratory, Washington, D. C. 20375
C. M. Wade
Affiliation:
1E. O. Hulburt Center for Space Research, Naval Research Laboratory, Washington, D. C. 20375

Extract

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Sco X-1 was observed in the A configuration of the VLA on 4 Feb. 1981 and 18 Mar. 1982 (Fomalont et al. 1983). The radio map at 1.5 GHz, made with the 1982 data, is shown in Figure 1. The central component is nearly coincident with the binary and has an angular size of less than 0″.1. A 0″.5-resolution map of the SW component of Sco X-1, shown in Figure 2, displays only the brightest peaks in the two emission regions. The brightest part of the emission is located at the extreme edge of the component, and its location and shape are reminiscent of hot spots in radio lobes associated with luminous extragalactic radio sources. Although the NE component is only slightly resolved at this resolution, it is extended in approximately the same position angle as that of the entire source and that of the SW component.

Type
Research Article
Information
Symposium - International Astronomical Union , Volume 110: VLBI and Compact Radio Sources , 1984 , pp. 283 - 284
Copyright
Copyright © Reidel 1984 

References

Blandford, R.D. and Rees, M. J.: 1974, M.N.R.A.S. 169, 395.Google Scholar
Fomalont, E.B., Geldzahler, B.J., Hjellming, R.M., and Wade, C.M.: 1983, Ap. J. in press.Google Scholar
Turner, B.E.: 1979, in The Large-Scale Characteristics of the Galaxy, IAU Symp. 84, ed. Burton, W. B. (Reidel, Dordrecht), 257.Google Scholar