Precise Interplanetary Network Localization of the Bursting Pulsar GRO J1744-28

K. Hurley; C. Kouveliotou; T. Cline; D. Cole; M. C. Miller; A. Harmon; G. Fishman; M. Briggs; J. van Paradijs; J. Kommers; W. Lewin

doi:10.1086/309083

arXiv · astro-ph/9912506

Precise Interplanetary Network Localization of the Bursting Pulsar GRO J1744-28

K. Hurley·C. Kouveliotou·T. Cline·D. Cole·M. C. Miller·A. Harmon·G. Fishman·M. Briggs·J. van Paradijs·J. Kommers·W. Lewin

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Abstract

We analyze 426 observations of the bursting pulsar GRO J1744-28 by Ulysses and BATSE. Triangulating each burst, and statistically combining the triangulation annuli, we obtain a 3 sigma error ellipse whose area is 532 sq. arcsec. The accuracy of this statistical method has been independently verified with observations of the soft gamma repeater SGR1900+14. The ellipse is fully contained within the 1 ' radius ASCA error circle of the soft X-ray counterpart, and partially overlaps the 10 " radius ROSAT error circle of a source which may also be the soft X-ray counterpart. A variable source which has been proposed as a possible IR counterpart lies at the edge of the 3 sigma error ellipse, making it unlikely from a purely statistical point of view to be associated with the bursting pulsar.

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K. Hurley, C. Kouveliotou, T. Cline, D. Cole, M. C. Miller, A. Harmon, G. Fishman, M. Briggs, J. van Paradijs, J. Kommers, W. Lewin. 1999-12-23. Precise Interplanetary Network Localization of the Bursting Pulsar GRO J1744-28. https://doi.org/10.1086/309083

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