XMM-Newton Observation of IGR J18538-0102 and an Optical/IR Candidate

Details XMM-Newton Observation of IGR J18538-0102 and an Optical/IR Candidate XMM-Newton Observation of IGR J18538-0102 and an Optical/IR Candidate

Feb 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010atel.2445....1h&link_type=abstract

The Astronomer's Telegram, #2445

Astronomy and Astrophysics

Astronomy

4

Infra-Red, Optical, X-Ray, Gamma Ray, Request For Observations

Scientific paper

We observed the X-ray counterpart of IGR J18538-0102 (Stephen et al., ATel #2441) in a pointed observation with XMM-Newton on 2004 October 8. This apparently steady source (in an 8 ks exposure) can be fitted with a power-law model of photon index 1.7+/-0.1, NH = (1.5+/-0.2)e22 cm-2, and unabsorbed 1-10 keV flux 5.6e-12 erg cm-2 s-1. Its coordinates 18h53m48.50s, -01d02'30.0" (J2000), with 90% confidence error radius of 3.2", coincide with an object in the 2MASS Point Source Catalog at 18h53m48.48s, -01d02'29.6" of magnitudes H=14.00+/-0.05 and K=12.50+/-0.05.

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