Hostname: page-component-78c5997874-4rdpn Total loading time: 0 Render date: 2024-11-13T07:16:26.987Z Has data issue: false hasContentIssue false

The First EUV Survey: White Dwarfs and Cool Stars

Published online by Cambridge University Press:  30 March 2016

C. Jordan
Affiliation:
Dept of Physics University of Oxford Theoretical Physics1 Keble Road Oxford OX1 3NPU.K.
K.A. Pounds
Affiliation:
Dept of Physics & Astronomy University of LeicesterUniversity Road Leicester, LEI 7RHU.K.

Abstract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

Preliminary results from the survey carried out with the Wide Field Camera (WFC) on ROS AT are presented. 732 sources were detected, of which 230 were observable in both the S1 and S2 filters. The distribution of sources with galactic longitude, near the galactic plane, shows the greatest number in the quadrant where H I absorption is least. The identifiable sources include a high proportion of hot white dwarfs and ‘normal’ late-type stars. The optical follow-up programme has identified over 40 new white dwarfs and over 60 late-type stars including RS CVn systems and cataclysmic variables. Emission from some A stars detected appears to come from white dwarf companions. Individual sources of particular interest are discussed. The systematic analysis of a sample of late-type stars has begun.

Type
Joint Discussions
Copyright
Copyright © Kluwer 1992

References

REFERENCES

Campbell, W.W. (1928) Publ. Lick Obs. 16, p. 167.Google Scholar
Cooke, B.A. et al. (1991) Nature, In Press.Google Scholar
Fleming, T.A., Schmitt, J.H.M.M., Barstow, M.A., and Mittaz, J.P.D. (1991) Astron. Astrophys. 246, L47L50.Google Scholar
Golub, L., Hamden, F.R., Maxson, C.W., Rosner, R., Vaiana, G.S., Cash, W. Jr., and Snow, T.P. Jr., (1983) Astrophys. J. 271, 264270.Google Scholar
Jeffries, R.D. et al. (1991) Vistas in Astronomy, In Press.Google Scholar
Liebert, J. and Margon, B. (1977) Astrophys. J. 216, 1822.Google Scholar
Margon, B. Lampton, M., Bowyer, S., Stern, R. and Parasce, F. (1976) Astrophys. J. (Letts) 210, L79L82.Google Scholar
Mason, K.O. et al. (1991) Vistas in Astronomy, In Press.Google Scholar
Montesinos, B. and Jordan, C. (1988) in Rolfe, E.J. (ed.), “A Decade of UV Astronomy with IUE”, Vol. 1 ESA SP-281, pp. 283286.Google Scholar
Pounds, K.A. (1991) in Koyama, K. (ed.), “Frontiers of X-ray Astronomy”, Univ. Acad. Press. In Press.Google Scholar
Pounds, K.A. et al. (1991) Mon. Not. R. astr. Soc, In Press.Google Scholar
Schmitt, J.H.M.M., Golub, L. Harnden, F.R., Maxson, C.W., and Rosner, R. (1985) Astrophys. J. 290, 307320.Google Scholar
Sims, M. et al. (1990) Optical Engineering 26, 649657.Google Scholar
Strassmeier, K.G., Hall, D.S., Zeilik, M., Nelson, E., Eker, Z. and Fekel, F.C. (1988) Astron. Astrophys. Suppl. 72, 291345.Google Scholar
Vilhu, O. and Walter, F.M. (1987) Astrophys. J. 321, 958966.Google Scholar
Wells, A.A. et al. (1990) S.P.LE. 1344, 230243.Google Scholar