TITLE: GCN CIRCULAR NUMBER: 14668 SUBJECT: Konus-Wind observation of GRB 130515A DATE: 13/05/16 10:01:58 GMT FROM: Dmitry Frederiks at Ioffe Institute S. Golenetskii, R.Aptekar, E. Mazets, V. Pal'shin, D. Frederiks, P. Oleynik, M. Ulanov, D. Svinkin, and T. Cline on behalf of the Konus-Wind team report: The short-duration GRB 130515A (Swift-BAT trigger #555880: Malesani et al., GCN 14650, Barthelmy et al., GCN 14658; Fermi-GBM detection: Jenke, GCN 14663) triggered Konus-Wind at T0=04880.440s UT (01:21:20.440) The burst light curve shows a single pulse from ~T0-0.05 s to ~T0-0.2 s, with a total duration of ~0.25s. The K-W light curve of this burst is available at http://www.ioffe.rssi.ru/LEA/GRBs/GRB130515_T04880/ As observed by Konus-Wind, the burst had a fluence of (1.1 ± 0.2)x10-6 erg/cm2 and a 16-ms peak flux, measured from T0-0.016 s, of (2.1 ± 0.5)x10-5 erg/cm2 (both in the 20 - 1500 keV energy range). Modelling the K-W 3-channel time-integrated spectrum (from T0-0.064 s to T0+0.192 s) by a power law with exponential cutoff model: dN/dE ~ (E^alpha)*exp(-E*(2+alpha)/Ep) yields alpha = 0.0 ± 0.4, and Ep = 410 ± 90 keV Modelling the K-W 3-channel spectrum at the maximum count rate (from T0-0.064 s to T0) by a power law with exponential cutoff model yields alpha = -0.5 ± 0.4, and Ep = 715 ± 360 keV All the quoted errors are at the 1 sigma confidence level.