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Voyager EUV and FUV Observations

Published online by Cambridge University Press:  12 April 2016

J.B. Holberg
J.B. Holberg*
Affiliation:
Lunar and Planetary Laboratory, University of Arizona

Abstract

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The Voyager 1 and 2 ultraviolet spectrometers are sensitive over the wavelength range 500 to 1700 A. In the EUV, at wavelengths shortward of the Lyman limit (912 A), Voyager observations have detected emission from three out of a sample of 11 nearby hot DA white dwarfs. These observations imply very low HI column densities in the directions of the three stars detected. In the FUV, at wavelengths between 912 and 1200 A, Voyager observations of O and B stars can be used to study interstellar reddening at the shortest wavelengths and to provide useful estimates of interstellar H2 column densities.

Type
Ultraviolet and EUV Absorption Studies
Information
International Astronomical Union Colloquium , Volume 81: Local Interstellar Medium , 1984 , pp. 91 - 94
Copyright
Copyright © NASA 1984

References

Córdova, F.A., and Mason, K.O. 1982, in Accretion Driven Stellar X-ray Sources, (ed. Levin, W.H.G. and van den Heuvel, E.D.J.).Google Scholar
Cródova, F.A., et al. 1984, Ap. J. (in press).Google Scholar
Helberg, J.B. et al. 1980a, Ap. J. (Letters), 242, L119.Google Scholar
Holberg, J.B., Forrester, W.T., and Broadfoot, A.L. 1980b, Bull. AAS. 12, 872.Google Scholar
Holberg, J.B., and Wesemael, F. 1984, Future of Ultraviolet Astronomy (NASA CP) (in press).Google Scholar
Holberg, J.B., Wesemael, F., and Hubený, I. 1983, Ap.J. (in press).Google Scholar
Kahn, S.M. et al. 1983, Ap. J., 278, 255.Google Scholar
Koester, D., Schultz, H., and Weidemann, V. 1979b, Astron. Ap., 76, 262.Google Scholar
Margon, B., et al. 1976a, Ap. J. (Letters). 203, L25.CrossRefGoogle Scholar
Margon, B., et al. 1976b, Ap. J., 210. L79.CrossRefGoogle Scholar
Margon, B., et al. 1978. Ap. J., 224, 167.CrossRefGoogle Scholar
McCook, G.P., and Sion, E.M. 1984, Villanova Univ. Obs. Contribution No. 3.Google Scholar
Petre, R., Shipman, H.L., and Canizares, C.R. 1983, Bull. AAS. 15, 655.Google Scholar
Polidan, R.S., and Holberg, J.B. 1984, Nature (in press).Google Scholar
York, D.G., et al. 1973, Ap. J. (Letters). 182, L1.CrossRefGoogle Scholar