GRB 130614A

Shaolin Xiong (UAH) reports on behalf of the Fermi GBM Team:

"At 23:56:09.74 UT on 14 June 2013, the Fermi Gamma-Ray Burst Monitor
triggered and located GRB 130614A (trigger 392946972 / 130614997).

High peak flux from the GRB caused GBM to issue a repoint request
that reoriented the satellite to place the GRB near the LAT boresight
for 2.5 hours, subject to Earth limb contraints.

The on-ground calculated location, using the GBM trigger
data, is RA = 324.18, DEC = -33.89 (J2000 degrees,
equivalent to 21 h 36 m, -33 d 53 '), with an uncertainty
of 1.2 degrees (radius, 1-sigma containment,
statistical only; there is additionally a systematic
error which is currently estimated to be 2 to 3 degrees).
The angle from the Fermi LAT boresight is 17 degrees.

The GBM light curve consists of a 'FRED' shape pulse
with a duration (T90) of about 9.3 s (50-300 keV).
The time-averaged spectrum from T0 s to T0+9.4 s is
well fit by a power law function with an exponential
high-energy cutoff. The power law index is -1.45 +/- 0.04 and
the cutoff energy, parameterized as Epeak, is 101 +/- 5 keV.

The event fluence (10-1000 keV) in this time interval is
(6.1 +/- 0.2)E-6 erg/cm^2. The 1-sec peak photon flux measured
starting from T0+0.19 s in the 10-1000 keV band
is 20.7 +/- 0.4 ph/s/cm^2.

The spectral analysis results presented above are preliminary;
final results will be published in the GBM GRB Catalog."

S. Sugimoto, M. Tashiro, Y. Terada, T. Yasuda, H. Ueno, Y. Ishida
(Saitama U.), M. Ohno, K. Takaki, T. Kawano, R. Nakamura, S. Furui,
Y. Fukazawa (Hiroshima U.), M. Yamauchi, N. Ohmori, M. Akiyama
(Univ. of Miyazaki), K. Yamaoka (Nagoya U.),  S. Sugita (Ehime U.),
Y. E. Nakagawa, M. Kokubun, T. Takahashi (ISAS/JAXA), W. Iwakiri
(RIKEN), Y. Hanabata (ICRR), Y. Urata (NCU), K. Nakazawa, K. Makishima
(Univ. of Tokyo) on behalf of the Suzaku WAM team, report:

The short GRB 130614A (Xiong, GCN 14903
Loading...
 
 ) was detected by the the Suzaku
Wide-band All-sky Monitor (WAM) which covers an energy range of
50 keV - 5 MeV at 23:56:9.064 UT (=T0).

The observed light curve shows a single FRED-like peak starting at
T0-1 s,ending at T0+9 s with a duration (T90) of about 4.9 seconds.
The fluence in 100 - 1000 keV was 3.08(+0.34/-0.31)*10^-6 erg/cm^2.
The 1-s peak flux measured from T0+1s was
2.41 (+0.35/-2.9) photons/cm^2/s in the same energy range.

Preliminary result shows that the time-averaged spectrum from T0-1 s to
T0+9 s is well fitted by a single power-law with a photon index
of 2.42 (+0.28/-0.24) (chi^2/d.o.f = 17.6/17).

All the quoted errors are at statistical 90% confidence level,

The light curves for this burst are available at:

http://www.astro.isas.jaxa.jp/suzaku/HXD-WAM/WAM-GRB/grb/trig/grb_table.html