Astronomy and Astrophysics – Astrophysics
Scientific paper
1999-06-01
Astronomy and Astrophysics
Astrophysics
12 pages and 2 color figures, accepted for publication in Astrophysical Journal Letters
Scientific paper
10.1086/312256
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.
Cline Thomas
Frederiks Dmitry
Golenetskii Sergey
Hurley Kevein
Kouveliotou Chryssa
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