Abstract
THE first suggestion1,2 of the existence of a ∼24 min periodicity in the X-ray light curve of 4U1700–37 was followed by the report3 of the detection of a ∼ 97-min period in the X-ray data from the SAS C satellite when pointing at the same source. We report here how a new recent Copernicus observation of 4U1700–37 was used to test the existence of a short-term modulation of the X-ray flux.
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BRANDUARDI, G., DUPREE, A., SANFORD, P. et al. Search for short time-scale periodicity in the X-ray flux of 4U1700 – 37. Nature 279, 508–509 (1979). https://doi.org/10.1038/279508a0
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DOI: https://doi.org/10.1038/279508a0
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