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IGR J14536-5522 is identified by Swift

ATel #686; K. Mukai, (NASA/GSFC & USRA), C. B. Markwardt (U. Md. & NASA/GSFC), J. Tueller (NASA/GSFC), S. Barthelmy (NASA/GSFC), D. Burrows (PSU), S. Campana (OAB), A. Falcone (PSU), N. Gehrels (NASA/GSFC), O. Godet (U. Leceister), D. Grupe (PSU), J. A. Kennea (PSU), H. Krimm (GSFC/NASA), V. Mangano (INAF), T. Mineo (INAF), C. Pagani (OAB), K. Page (U. Leceister), R. F. Mushotzky (NASA/GSFC), G. K. Skinner (CESR)
on 10 Jan 2006; 11:38 UT
Credential Certification: Jack Tueller (jack.tueller-1@nasa.gov)

Subjects: X-ray, Cataclysmic Variable

Referred to by ATel #: 783

The BAT survey source Swift J1453.4-5524 is coincident with IGR J14536-5522. This is a relatively soft BAT source (kT~30-45 keV for a single temperature Bremsstrahlung fit) that appears to be variable. In a pointed Swift XRT observation, we find a moderately bright (3.3e-11 ergs/cm^2 s keV in 0.4-10 keV) x-ray source at RA = 14h53m41.7s, dec=-55d21m42.8s, coincident with the ROSAT all sky survey source 1RXS J145341.1-552146. The X-ray spectrum is complex, requiring at least two components, such as a hard power law (photon index near 1.0) and a soft blackbody (kT~70 eV) with little absorption, reminiscent of certain magnetic cataclysmic variables. This X-ray source is highly variable, particularly in the soft band. There is a single bright UVOT source at magnitude 17.59+/-0.02 in the UVW1 filter, at RA=14h53m41.1s, dec=-55d21m46s, which does not appear to be variable.