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The Interpretation of Space Observations of Stars and Interstellar Matter

Published online by Cambridge University Press:  30 March 2016

Donald C. Morton
Donald C. Morton*
Affiliation:
Princeton University Observatory, Princeton, U.S.A.

Extract

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This report will review space observations of stars and the interstellar medium and what we can expect to learn from instruments planned for the near future. Older observations are described in more detail by Underhill and Morton (1967), and Houziaux and Butler (1970). The interpretation of these measurements depends heavily on the results of theoretical and experimental atomic physics. Therefore the last section will describe some of the areas where new atomic data are essential for our understanding of space observations.

Rockets or satellites are necessary to detect all wavelengths between 0.1 and 3000 Å except for two bands from 2000 to 2200 Å and from 2700 to 3000 Å accessible at balloon altitudes. However, for most sources outside the solar system the bound-free absorption of atomic hydrogen will obliterate all wavelengths between 100 and 912 Å. For example, unit optical depth at 304 Å occurs at 12 parsecs even if the interstellar hydrogen density is as low as 0.1 atom cm-3.

Type
III. Joint Discussions
Information
Highlights of Astronomy , Volume 2: Highlights of Astronomy. As presented at the XIVth General Assembly of the IAU, 1970 , 1971 , pp. 466 - 475
Copyright
Copyright © Reidel 1971

References

Bell, K. L. and Kingston, A. E.: 1967, Monthly Notices Roy. Astron. Soc. 136, 241.Google Scholar
Bless, R. C., Code, A. C., and Houck, T. E.: 1968, Astrophys. J. 153, 561.Google Scholar
Bohlin, R. C.: 1970, Astrophys. J. 162, 571.CrossRefGoogle Scholar
Bradley, P. T. and Morton, C. D.: 1969, Astrophys. J. 156, 687.Google Scholar
Burbidge, G. and Burbidge, M.: 1967, Quasi-Stellar Objects. Freeman and Co., San Francisco.Google Scholar
Carruthers, G. R.: 1968, Astrophys. J. 151, 269.Google Scholar
Carruthers, G. R.: 1969, Astrophys. Space Sci. 5, 387.Google Scholar
Carruthers, G. R.: 1970a, Space Sci. Rev. 10, 459.Google Scholar
Carruthers, G. R.: 1970b, Astrophys. J. 161, L81.Google Scholar
Code, A. D. and Bless, R. C.: 1970, in IAU Symposium 36, p. 173.Google Scholar
Davis, J. and Webb, R. J.: 1970a, Astrophys. J. 159, 551.Google Scholar
Davis, J. and Webb, R. J.: 1970b, Astronomical Society of Australia, Conference on Stellar Atmospheres, May 1970.Google Scholar
Davis, J., Morton, D. C., Allen, L. R., and Hanbury-Brown, R.: 1970, Monthly Notices Roy. Astron. Soc. 150, 45.CrossRefGoogle Scholar
Gaillard, M. and Hesser, J. E.: 1968, Astrophys. J. 152, 695.Google Scholar
Henry, R.J.W. and Williams, R. E.: 1968, Pubi. Astron. Soc. Pacific 80, 669.Google Scholar
Hollenbach, D. J., Werner, M. W., and Salpeter, E. E.: 1971 Astrophys. J. 163, 165.Google Scholar
Houziaux, L. and Butler, H. E.: 1970, ‘Ultraviolet Stellar Spectra and Related Ground-Based Observations’, IAU Symposium 36 Google Scholar
Hudson, R. D. and Kieffer, L. J.: 1970, preprint.Google Scholar
Jenkins, E. B.: 1970, in IAU Symposium 36, p. 281.Google Scholar
Kondo, Y., Henize, K. G., and Kotila, C. L.: 1970, Astrophys. J. 159, 927.CrossRefGoogle Scholar
Lucy, L. B. and Solomon, P. M.: 1970, Astrophys. J. 159, 879.Google Scholar
Morton, D. C.: 1967, Astrophys. J. 147, 1017.Google Scholar
Morton, D. C.: 1969a, Theory and Observation of Normal Stellar Atmospheres, Third Harvard-Smithsonian Conference (ed. by Gingerich, O.), MIT Press Cambridge, p. 253.Google Scholar
Morton, D. C.: 1969b, Astrophys. Space Sci. 3, 117.Google Scholar
Morton, D. C. and Spitzer, L.: 1966, Astrophys. J. 144, 1.Google Scholar
Morton, D. C., Jenkins, E. B., and Brooks, N. H.: 1969, Astrophys. J. 155, 875.CrossRefGoogle Scholar
Osterbrock, D. E.: 1963, Planetary Space Sci. 11, 621.Google Scholar
Peach, G.: 1970, Mem. Roy. Astron. Soc. 73, 1.Google Scholar
Savage, B. D. and Code, A. D.: 1970, in IAU Symposium 36, p. 302.Google Scholar
Smith, A. M.: 1967, Astrophys. J., 147, 158.Google Scholar
Smith, A. M.: 1969, Astrophys. J. 156, 93.Google Scholar
Smith, A. M.: 1970, Astrophys. J. 160, 595.Google Scholar
Spitzer, L. and Zabriskie, F. R.: 1959, Pubi. Astron. Soc. Pacific 71, 412.Google Scholar
Stecher, T. P.: 1969, Astron. J. 74, 98.Google Scholar
Stecher, T. P.: 1970, Astrophys. J. 159, 543.Google Scholar
Stecher, T. P. and Willams, D.: 1967, Astrophys. J. 149, L29.Google Scholar
Stone, M. E. and Morton, D. C.: 1967, Astrophys. J. 149, 29.Google Scholar
Underbill, A. B. and Morton, D. C.: 1967, Nature 158, 1273.Google Scholar
Van Citters, G. W. and Morton, D. C.: 1970, Astrophys. J. 161, 695.Google Scholar