//////////////////////////////////////////////////////////////////////// TITLE: GCN CIRCULAR NUMBER: 6927 SUBJECT: GRB 071017: a SHORT GRB detected by INTEGRAL DATE: 07/10/17 02:22:55 GMT FROM: Sandro Mereghetti at IASF/CNR S.Mereghetti, A.Paizis (IASF-Milano), D.Gotz (CEA-Saclay), D.Petry, S.Shaw, M. Beck (ISDC, Versoix), and J. Borkowski (CAMK, Torun) on behalf of the IBAS Localization Team report: A short burst lasting about 0.5 s has been detected by IBAS in IBIS/ISGRI data at approximately 00:58 UT on October 17 The coordinates (J2000) are: RA: 274.718 [degrees], DEC: -16.001 [degrees] with an uncertainty of 2 arcmin. We note that the X-ray source AX J1818.8-1559 is consistent with this position. This could be a new SGR or AXP in the galactic plane. //////////////////////////////////////////////////////////////////////// TITLE: GCN CIRCULAR NUMBER: 6942 SUBJECT: GRB 071017 - Swift XRT observations DATE: 07/10/19 16:16:18 GMT FROM: Phil Evans at U of Leicester P.A. Evans, R.L.C. Starling, P.T. O'Brien, (U. Leicester), G. Israel (INAF - OA Roma), A.P. Beardmore, K.L. Page, J.P.Osborne (U. Leicester), J. Cummings (GSFC/UMBC) and N. Gehrels (NASA/GSFC) report on behalf of the Swift-XRT team: Swift began observing the INTEGRAL-detected short GRB 071017 (Mereghetti et al. GCN Circ 6927) at 08:58:45 UT on 2007 October 19, 2.3 days after the trigger. We currently have 2 ks of XRT data, in which we detect a source inside the INTEGRAL error circle at RA, Dec=274.7148, -15.9889 degrees, which is equivalent to: RA (J2000) = 18:18:51.56 Dec (J2000) = -15:59:19.9 with an estimated uncertainty of 5.5 arcsec (radius, 90% confidence). This is consistent with the XMM source 2XMM J171751.2-155920, and lies within the error circle reported for the transient AX J1818.8-1559 (Sugizaki et al. 2001) thus it is not a GRB afterglow. No other X-ray sources are detected inside the INTEGRAL error circle, with a 3-sigma upper limit of 0.005 counts per second. There are two further X-ray sources in the XRT field of view, the first is at RA, Dec=274.8069, -16.0237 with an estimated uncertainty of 6.5 arcsec (radius, 90% confidence), this is 5.3 arcmin away from the INTEGRAL position. The second source is at RA, Dec=274.8436,-16.0552 with an estimated uncertainty of 7.9 arcsec (radius, 90% confidence), and is 7.9 arcmin away from the INTEGRAL position. This circular is an official product of the Swift-XRT team.