Abstract
HERE we report the first observations of a lunar occultation of an X-ray source using detectors on board an Earth satellite. The source GX5–1 has now been located with an error box (95% confidence) of 6 × 20 arc s. A 2σ upper limit of 8 arc s has been put on the source diameter.
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References
Schnopper, H. W., Bradt, H. V., Rappaport, S., Bougham, E., Burnett, B., Doxsey, R., Mayer, W., and Watt, S., Astrophys. J. Lett., 161, L161 (1970).
Braes, L. L. E., Miley, G. K., and Schoenmaker, A. A., Nature, 236, 392 (1972).
Morrison, L. V., Nature phys. Sci., 229, 192 (1971).
Watts, C. B., Astr. Pap. XVII (Washington, 1963).
Kunkel, W., Osmer, P., Smith, M., Hoag, A., Schroeder, D., and Hiltner, W. A., Astrophys. J. Lett., 161, L169 (1970).
Rappaport, S., Bradt, H. V., Naranan, S., and Spada, G., Nature 221, 428 (1969).
Seward, F. D., Burginyon, G. A., Grader, R. J., Hill, R. W., and Palmieri, T. M., Astrophys. J., 178, 131 (1972).
Tarenghi, M., and Reina, C., Nature phys. Sci., 240, 53 (1972).
Janes, A. F., Pounds, K. A., Ricketts, M. J., Willmore, A. P., and Morrison, L. V., Nature, 244, 349 (1973).
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HOFFMAN, J., DAVISON, P. & MORRISON, L. Accurate Position of GX5–1 from Lunar Occultations. Nature 244, 347–349 (1973). https://doi.org/10.1038/244347a0
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DOI: https://doi.org/10.1038/244347a0
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