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PG 1707+427: The DOV Star with the Simplest Fourier Transform

Published online by Cambridge University Press:  12 April 2016

Albert D. Grauer ,
James Liebert  and
Richard Green
Albert D. Grauer
Affiliation:
Department of Physics andAstronomy University of Arkansas at Little Rock
James Liebert
Affiliation:
Steward Observatory University of Arizona
Richard Green
Affiliation:
Kitt Peak National Observatory National Optical Astronomy Observatories

Extract

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PG 1707+427 was identified in the Palomar-Green survey (Green Schmidt and Liebert, 1986) as an object with a significant ultraviolet excess. Observations by Bond and Grauer in 1982 showed it to be a pulsating variable (Bond, Grauer, Green and Liebert, 1984). Fourier transforms of the discovery time-series photometric runs revealed power in PG 1707+427’s light curves in two bands with periods near 450-s and 333-s. The longer period peak was observed to have a variable amplitude while the other one appeared relatively constant in strength. Wesemael, Green and Liebert (1985) placed PG 1707+427 in the spectroscopic class of PG 1159–035 (DOV) pulsating variables.

Type
Research Article
Information
International Astronomical Union Colloquium , Volume 114: White Dwarfs , 1989 , pp. 119 - 121
Copyright
Copyright © Springer-Verlag 1989

References

Bond, H.E., Grauer, A.D., Green, R.F. and Liebert, J.W. 1984, Ap. J., 279, 751 Google Scholar
Clemens, , Chris, 1988, private communications.Google Scholar
Deeming, T.J. 1975, Ap. Space Sci., 36, 137 Google Scholar
Green, R.F., Schmidt, M. and Liebert, J.W. 1986, Ap. J. Suppl., 61, 305.Google Scholar
McGraw, J.T. Starrfield, S.G., Liebert, J. and Green, R.F. 1979, in IAU Colloquium No. 53, White Dwarfs and Variable Degenerate Stars, ed. Van Horn, H. and Weidemann, V. (Rochester: University of Rochester), p. 377 Google Scholar
Roberts, D.H., Lehar, J. and Dreher, J.W. 1987, A.J., 93, 968 Google Scholar
Wesemael, F., Green, R.F., and Liebert, J.W. 1985, Ap. J. Suppl., 58, 379.CrossRefGoogle Scholar
Winget, D.E., Hansen, C.J., and van Horn, H.M. 1983, Nature, 303, 781 CrossRefGoogle Scholar
Winget, D.E., Kepler, S.O., Robinson, E.L., Nather, R.E. and O’Donoghue, D. 1985, Ap. J., 292, 606.CrossRefGoogle Scholar