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Where is SGR1806-20?

K. Hurley·C. Kouveliotou·T. Cline·E. Mazets·S. Golenetskii·D. Frederiks·J. van Paradijs
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Abstract

We apply a statistical method to derive very precise locations for soft gamma repeaters using data from the interplanetary network. We demonstrate the validity of the method by deriving a 600 arcsec^2 error ellipse for SGR1900+14 whose center agrees well with the VLA source position. We then apply it to SGR1806-20, for which we obtain a 230 arcsec^2 error ellipse, the smallest burst error box to date. We find that the most likely position of the source has a small but significant displacement from that of the non-thermal core of the radio supernova remnant G10.0-0.3, which was previously thought to be the position of the repeater. We propose a different model to explain the changing supernova remnant morphology and the positions of the luminous blue variable and the bursting source.

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K. Hurley, C. Kouveliotou, T. Cline, E. Mazets, S. Golenetskii, D. Frederiks, J. van Paradijs. 1999-07-08. Where is SGR1806-20?. https://doi.org/10.1086/312256

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