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The transient X-ray source A0620-00 - Intensity variations and evidence for an 8 day periodicity

T. Matilsky, H. Bradt, J. Buff, G. W. Clark, J. G. Jernigan, B. Laufer, J. E. McClintock, D. Zubrod, P. C. Joss

The Astrophysical Journal · 1976 · 24 citations · 0 references

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Abstract

The X-ray intensity of the transient source A0620-00 has been measured frequently with the SAS-3 X-ray Observatory from August 8, 1975 to February 13, 1976. This brightest of all known X-ray transients shows intensity variations on a time scale of days superposed on a general decline. Intensity data for the period from January 7 to February 13, 1976, show evidence of an approximate 7.8-day periodicity that may be the result of binary motion.