Columbia University Astronomy and Astrophysics


Swift XRT Position for IGR J18490-0000
J. P. Halpern

On 2006 March 5-6, and again on March 9 the Swift XRT observed a source at quicklook position R.A. = 18h49m01.4s(01.5s), Decl. = -00°01′19.5″(18.4″) (J2000) that is the probable counterpart of IGR J18490-0000 (Bird et al. 2006). There is possibly one faint counterpart in the 2MASS at R.A. = 18h49m01.82s, Decl. = -00°01′19.0″ (J2000) that is not visible on the DSS.

It is very convenient that a bright star, HD 174181 (K5) at R.A. = 18h49m21.282s, Decl. = -00°00′13.00″(J2000) is also detected by Swift, at position R.A. = 18h49m21.1s(21.1s), Decl. = -00°00′14.3″(14.9″) (J2000), which should allow an improvement of the astrometry.

Swift XRT Light Curve
Swift XRT Light Curve

Digitized UK Schmidt R and I Plates (2′×2′)
Image center at (J2000) 18h 49m 01.4s, -00° 01′ 20″
UK II R UK II I

2MASS J,H,K (1.8′×1.8′)
2MASS J 2MASS H 2MASS K

References

The Second IBIS/ISGRI Soft Gamma-ray Source Catalog, A.J. Bird, et al., Ap.J., 636, 765-776 (2006)

Swift Follow-up Observations of INTEGRAL Sources of Unknown Nature, J. Rodriguez, J. A. Tomsick, S. Chaty, A&A, 482, 731-737 (2008)

INTEGRAL Swift

MDM O
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Last modified: May 26, 2008 Swift X-ray Source Page