X-ray Nova XTE J1550-564: Optical Observations

Details X-ray Nova XTE J1550-564: Optical Observations X-ray Nova XTE J1550-564: Optical Observations

1999-03-25

arxiv.org/abs/astro-ph/9903398v1

Astronomy and Astrophysics

Astrophysics

9 pages, 2 figures. Accepted for publication in ApJ Letters

Scientific paper

10.1086/312041

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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