RX J185635-3754: The X-Ray Data

RX J185635-3754 is a bright soft X-ray source. It has been detected on 5 occasions, by 4 instruments on 3 satellites, over a 20 year interval. There is no evidence for variability.

Other observations include:

The X-ray spectrum (from the ROSAT PSPC) is consistent with a black body, with kT = 57 +/- 1 eV and nH = 1.4 +/- 0.1 X 1020 cm-2. This column corresponds to AV=0.07 mag for R=3.1.
There is no evidence for any X-ray variability.

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