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The Extremely Rapid Light-Variations of Old Novae and Related Objects

Published online by Cambridge University Press:  14 August 2015

Merle F. Walker
Merle F. Walker*
Affiliation:
Mount Wilson and Palomar Observatories, Pasadena, California, U.S.A.

Extract

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It has been recognized in recent years that extremely rapid light-variations occur in certain stars. Flares lasting only a few minutes have been observed in a number of dMe stars[1]. Flaring has also been observed in the W Ursae Majoris star U Pegasi[2]. Rapid variations in light have been found in some T Tauri stars[3], in the U Geminorum variable AE Aquarii[4,5], and in the short-period eclipsing binary UX Ursae Majoris[6, 7, 8]. Observations during the past two years at the Mount Wilson Observatory have shown that extremely rapid and apparently continuous variations in light occur also in many of the old novae and in a number of related stars.

Type
II. Instability in the Hot Stars of Low Luminosity and in the Novae
Information
Symposium - International Astronomical Union , Volume 3: Non-Stable Stars , 1957 , pp. 46 - 56
Copyright
Copyright © Cambridge University Press 1957 

References

1. A list of the known flare stars is given by Roques, P. E., Publ. A.S.P. 67, 34 (1955).Google Scholar
2. Huruhata, M., Publ. A.S.P. 64, 200 (1952).Google Scholar
3. Haro, G. and Morgan, W. W., Ap.J. 118, 16 (1953).Google Scholar
4. Henize, K. G., A.J. 54, 89 (1949).Google Scholar
5. Lenouvel, F. and Daguillon, J., Ann. d'Ap. 17, 416 (1954).Google Scholar
6. Linnell, A. P., Harvard Circ. No. 455 (1950).Google Scholar
7. Johnson, H. L., Perkins, B. and Hiltner, W. A., Ap.J. Suppl. 1 (No. 4), 91 (1954).Google Scholar
8. Walker, M. F. and Herbig, G. H., Ap.J. 120, 278 (1954).Google Scholar
9. Walker, M. F., Publ. A.S.P. 66, 71 (1954).Google Scholar
10. Greenstein, J. L., Publ. A.S.P. 66, 79 (1954).Google Scholar
11. Humason, M. L., Ap.J. 88, 228 (1938).Google Scholar
12. Walker, M. F., Ap.J. 123, 68, (1956).Google Scholar
13. Burbidge, E.M. and Burbidge, G. R., Ap.J. 118, 349 (1953).Google Scholar
14. Herbig, G. H., private communication.Google Scholar
15. Johnson, H. L. and Morgan, W. W., Ap.J. 117, 313 (1953).Google Scholar
16. Adams, W. S., Humason, M. L. and Joy, A. H., Publ. A.S.P. 39, 365 (1927).Google Scholar
17. Heeschen, D. S., Ap.J. 114, 132 (1951).Google Scholar
18. McCuskey, S. W., Ap.J. 88, 209 (1938).Google Scholar
19. Joy, A. H., Publ. A.S.P. 55, 283 (1943).Google Scholar
20. Joy, A. H., Ap.J. 120, 377 (1954).Google Scholar
21. Lee, T. D., Ap.J. 111, 625 (1950).Google Scholar
22. Mestel, L., M.N. 112, 583, 598 (1952).Google Scholar