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X-ray Nova XTE J1550-564: Optical Observations

R. K. Jain·C. D. Bailyn·J. A. Orosz·R. A. Remillard·J. E. McClintock
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Abstract

We report the identification of the optical counterpart of the X-ray transient XTE J1550-564 described in two companion papers by Sobczak et al (1999) and Remillard et al (1999). We find that the optical source brightened by approximately 4 magnitudes over the quiescent counterpart seen at B~22 on a SERC survey plate, and then decayed by approximately 1.5 magnitudes over the 7 week long observation period. There was an optical response to the large X-ray flare described by Sobczak et al (1999), but it was much smaller and delayed by roughly 1 day.

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R. K. Jain, C. D. Bailyn, J. A. Orosz, R. A. Remillard, J. E. McClintock. 1999-03-25. X-ray Nova XTE J1550-564: Optical Observations. https://doi.org/10.1086/312041

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