Hostname: page-component-5c6d5d7d68-wp2c8 Total loading time: 0 Render date: 2024-08-29T14:35:16.526Z Has data issue: false hasContentIssue false

X-Ray Astronomy—1968 Vintage

Published online by Cambridge University Press:  25 April 2016

W. R. Webber*
Affiliation:
Department of Physics, University of Adelaide

Extract

For the past six years astronomers have been regarding the universe through a new window—the X-ray window. In these six years this subject has experienced a ‘remarkable’ growth. In late 1966 workers from the Naval Research Laboratory (NRL) published a catalogue containing 35 X-ray sources. In my preparation for this report I have compiled a new catalogue containing only 22 sources (which I believe contains all of the presently confirmed X-ray sources). This early proliferation of ‘sources’ may be attributed to the exuberance of the experimenters or perhaps to a poor understanding of the laws of statistics. A simple calculation shows that, with this rate of decrease of ‘observable’ sources, X-ray astronomy will cease to exist as a subject in 1972!

Type
Invited Paper
Copyright
Copyright © Astronomical Society of Australia 1968

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

1 Friedman, H., Byram, E. T. and Chubb, T. A., Science, 156, 374 (1967)CrossRefGoogle Scholar
2 Chodil, G., Mark, H., Rodrigues, R., Seward, T. D., Swift, C. D., Turiel, I., Hiltner, W. A., Wallerstein, G. and Mannery, E. J., Ap. J. (to be published)Google Scholar
3 Bowyer, C. S., Field, G. B. and Mack, J. E., Nature, 217, 32 (1968).Google Scholar
4 Time Magazine, May 3, p. 37 (1968).Google Scholar
Oda, M. J., Appl. Optics, 4, 143 (1965).CrossRefGoogle Scholar
6 Giacconi, R., Gorenstein, P., Gursky, H., Usher, P. D., Walters, J. R., Sandage, A., Osmer, P. and Peach, J. V., Ap. J., 148, L129 (1967).Google Scholar
7 Fisher, P. C., Jordon, W. C., Meyerott, A. J., Acton, L. W. Roething, D. T., Ap. J., 147, 1213 (1967).Google Scholar
8 Gorenstein, P., Giacconi, R., and Gursky, H., Ap. J., 150, L85 (1967).CrossRefGoogle Scholar
9 Hill, R. W., Grader, R. J. and Seward, F. D., Ap. J., (to be published).Google Scholar
10 Peterson, L. E., Jerde, R. L. and Jacobson, A. S., AIAA Journal, 5, 1921 (1967).CrossRefGoogle Scholar
11 Buselli, G., Clancy, M. C., Davison, P. J. N., Edwards, P. J., McCracken, K. G. and Thomas, R. M., Nature, 219, 1124 (1968).CrossRefGoogle Scholar
12 Bradt, H., Mayer, W., Naranan, S., Rappaport, S. and Spada, G., Ap. J. Lett., 150, L199 (1967).CrossRefGoogle Scholar
13 Felten, J. E. and Morrison, P., Ap. J., 146, 686 (1967).Google Scholar
14 Tucker, W. H. and Gould, R. J., Ap. J., 144, 1 (1966).Google Scholar
14a Stein, W. A. and Ney, E. P., J. Geophys. Res., 68, 65 (1963).Google Scholar
15 Giacconi, , Riccardo, , Scientific American, April, p. 36 (1968).Google Scholar
16 Andrew, B. H. and Purton, C. R., Nature, 218, 855 (1968).CrossRefGoogle Scholar
17 Gursky, H., Gorenstein, P. and Giacconi, R., Ap. J., 150, L75 (1967).CrossRefGoogle Scholar
18 Francey, R. J., Fenton, A. G., Harries, J. R. and McCracken, K. G., Nature, 216, 773 (1967).Google Scholar
19 Edwards, P. J., Nature, 217, 43 (1968).CrossRefGoogle Scholar
20 Silk, J., Ap. J., 151, L19 (1968).CrossRefGoogle Scholar
21 Hoyle, F., Phys. Rev. Lett., 15, 131 (1965).CrossRefGoogle Scholar
22 Gould, R. J. and Sciama, D. W., Ap. J., 140, 1634 (1964).Google Scholar
23 Marashi, L., Perola, G. C. and Schwarz, S., preprint, Gruppo GIFCO de CNR, Milano (1967).Google Scholar