Astronomy and Astrophysics – Astrophysics
Scientific paper
1999-07-23
Astronomy and Astrophysics
Astrophysics
14 pages, two-column,"emulateapj" style, accepted by ApJ for publication
Scientific paper
The All-Sky Monitor (ASM) on the Rossi X-ray Timing Explorer (RXTE) has been used to localize thirteen confirmed X-ray counterparts to Gamma-Ray Bursts (GRBs) detected over three years of operation. We quantify the errors in ASM localizations of brief transient sources by using observations of persistent sources with well-known locations. We apply the results of this analysis to obtain accurate error boxes with reliable confidence levels for the thirteen GRBs. In six of these thirteen cases, multiple detections by the ASM allow the positions to be localized to a diamond of order ~15' x 3'. In five further cases, the Interplanetary Network (IPN) constrains the usually ~3 deg. x 3' (full-width) ASM error box to an area of a few tens of square arcminutes. This work adds eleven burst localizations to the list of ~60 well-localized GRBs.
Bradt Hale V.
Briggs Matthew
Cline Thomas
Frederics D.
Golenetskii Sergey
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