Abstract
THE X-ray burst source MXB1728—34 (ref. 1), which is believed to be associated with the steady source 2S1728—337 (ref. 2), lies in a heavily obscured portion of the Milky Way. The infrared photometer described previously3, attached to the 1.88-m telescope at Sutherland, was therefore used to search for optically invisible sources at K (2.2 µm) in the region of the error circle of 2S1728—337. The results are presented here: five infrared sources were located.
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References
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GLASS, I. Infrared sources in the vicinity of 2S1728-337. Nature 273, 35–36 (1978). https://doi.org/10.1038/273035a0
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DOI: https://doi.org/10.1038/273035a0
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