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SWIFT/BAT Detections of Hard X-ray Sources

ATel #668; J. Tueller (NASA/GSFC), S. Barthelmy (NASA/GSFC), D. Burrows (PSU), A. Falcone (PSU), N. Gehrels (NASA/GSFC), D. Grupe (PSU), J. Kennea (PSU), C. B. Markwardt (U. Md. & NASA/GSFC), R. F. Mushotzky (NASA/GSFC), G. K. Skinner (CESR)
on 5 Dec 2005; 19:12 UT
Distributed as an Instant Email Notice Request For Observations
Credential Certification: Jack Tueller (jack.tueller-1@nasa.gov)

Subjects: X-ray, Gamma Ray, AGN, Black Hole, Cataclysmic Variable, Quasar

Referred to by ATel #: 669, 677, 697, 720, 853, 859

We report the detections of new high energy sources from the Swift Burst Alert Telescope (BAT) hard X-ray survey, and subsequent follow-up observations with the X-ray Telescope (XRT). The BAT survey covers the 15-200 keV band, and the time range Dec 2004 - Mar 2005. Sky coverage was not uniform, so the survey is not yet complete for the full sky.

The sources reported in the table below are >5.5 sigma BAT detections which are either previously unknown gamma-ray sources; previously known sources which were previously unknown to be gamma-ray emitters; or improved positions for previously known gamma-ray emitters. The original BAT-only positions are accurate to within ~3 arcmin (90%). Typical 15-200 keV fluxes are half to a few mCrab.

In all cases, the BAT detections were also detected in follow-up observations by the XRT in the 0.5-10 keV band. XRT positions are accurate to within 3-4 arcsec after applying the new boresight correction (Moretti et al. 2005, astroph/0511604; see XRT error radius in arc seconds ["ER"] column below).

The sources are identified by their Swift name and position, followed by their likely identification and classification, where appropriate. The table of results is in ATEL#669.