Chandra and Optical Identification of AX J1841.0-0536

Astronomy and Astrophysics – Astronomy

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Infra-Red, Optical, X-Ray, Binaries, Neutron Stars, Pulsars, Transients

Scientific paper

We observed the field of the transient 4.74 s X-ray pulsar AX J1841.0-0536, suspected to be a Be/X-ray binary [Bamba et al., PASJ, 53 , 1179 (2001)], with the Chandra ACIS arrays for 20 ks on 2004 May 12. A bright, variable source was detected off-axis on the I3 CCD at (J2000) 18h41m0s.54, - -05°35'46".8. Its spectrum can be fitted with a power law of photon index Γ = 1.35 ± 0.30, column density NH = (6.1 ± 1.0) ×1022 cm-2, and flux F(0.5-10 keV) = 4.2 ×10-12 ergs cm-2 s-1.

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