Monitoring of 1SAX J0635.2+0533

annotated image of 1SAX J0635.2+0533

Link to a color image.

The discovery paper: Kaaret P, Piraino S, Halpern J, Eracleous: Discovery of a hard X-ray source, SAX J0635+0533, in the error box of the gamma-ray source 2EG 0635+0521, Astrophysical Journal 532, 197 - 202, (1999)

The H-R diagram computed from a composite image (2001-11-15): gzipped PS. The uncalibrated(!) magnitudes in R and V. The objects: SAX: V-R=1.29 V=14.15, 1: V-R=2.58 V=14.89, 2:V-R=0.89 V=13.414, 3: V-R=1.39 V=13.88. The object 1 is not recomended as a candidate for a comparison star (it's probably the red giant star). The diagram shows a splitting of the main sequence to the two part.The field is near of the Rosetta and the Galactic plane, so the dark dust clouds can obscure some objects (absorption in V = 3 - 4 magnitudes). Some reddening is expected. The zero difference for V-R is typically about 1.0 magnitude for our telescope so the the calibrated magnitudes will be SAX: V-R=0.3 and V=13.2 with good agreement for a B-type star.

Light Curves

2001-10-12/13 2001-10-15/16 2001-11-02/03 2001-11-15/16 2001-11-16/17 2002-01-03/04 2002-01-04/05 all (PNG images, 2-4kB)

Conclusion

No significant changes in light has been detected yet.

Comments to: F. Hroch


[ MonteBoo ]