On the Nature of Ryle and Bailey's Candidate Star for the Pulsating Radio Source CP 1919

Creators: Westphal, J. A.; Kristian, Jerome; Snellen, Grant; Sandage, Allan; Schmidt, Maarten; Oke, J. B.; Neugebauer, Gerry; Becklin, E. E.

Abstract

The energy distribution and spectrum of the "blue" star near CP 1919 indicate that it is a normal early F, main-sequence star and therefore is not likely to be related to the radio source. No regular variations were found in the light from the star, to within an accuracy of a few tenths of 1 per cent.

Additional Information

© 1969 American Astronomical Society. Provided by the NASA Astrophysics Data System. Received December 16, 1968. We are indebted to W. L. W. Sargent for a discussion of the spectroscopic data and to M. Ryle for furnishing a revised Cambridge position. This research was supported in part by NASA grant NGL 05-002-007 and ARPA grant DA-ARO-D-31-124-G 705.

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