2007PASJ...59..695A

Query : 2007PASJ...59..695A

2007PASJ...59..695A - Publ. Astron. Soc. Jap., 59, 695-702 (2007/June-0)

HETE-2 observations of the X-ray flash XRF 040916.

ARIMOTO M., KAWAI N., SUZUKI M., SATO R., PAZMINO N.V., SHIMOKAWABE T., ISHIMURA T., KOTOKU J., YOSHIDA A., TAMAGAWA T., SHIRASAKI Y., MATSUOKA M., NAKAGAWA Y., ISHIKAWA N., KOBAYASHI A., SUGITA S., TAKAHASHI I., KUWAHARA M., YAMAUCHI M., TAKAGISHI K., HATSUKADE I., ATTEIA J.-L., PELANGEON A., VANDERSPEK R., GRAZIANI C., PRIGOZHIN G., VILLASENOR J., JERNIGAN J.G., CREW G.B., HURLEY K., SAKAMOTO T., RICKER G.R., WOOSLEY S.E., BUTLER N., LEVINE A., DOTY J.P., DONAGHY T.Q., LAMB D.Q., FENIMORE E.E., GALASSI M., BOER M., DEZALAY J.-P., OLIVE J.-F., BRAGA J., MANCHANDA R. and PIZZICHINI G.

Abstract (from CDS):

A long X-ray flash was detected and localized by instruments aboard the High Energy Transient Explorer II (HETE-2) at 00:03:30 UT on 2004 September 16. The position was reported to the GRB Coordinates Network (GCN) approximately 2 hours after the burst. This burst consisted of two peaks separated by ∼ 200 s, with durations of about 110 s and 60 s. We analyzed the energy spectra of the 1st and 2nd peaks observed with the Wide Field X-Ray Monitor (WXM) and the French Gamma Telescope (FREGATE). We discuss the origin of the 2nd peak in terms of the flux variabilities and timescales. We find that it is most likely to be part of prompt emission, and is explained by a long-acting engine model. This feature is similar to some bright X-ray flares detected in the early afterglow phase of bursts observed by the Swift satellite.

Abstract Copyright: ∼

Journal keyword(s): gamma-rays: bursts - X-rays: bursts - X-rays: individual: XRF 040916

Simbad objects: 6

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Number of rows : 6
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 GRB 021004 gB 00 26 54.68 +18 55 41.6           ~ 560 0
2 GRB 050406 gB 02 17 52.200 -50 11 15.81     18.83     ~ 125 0
3 GRB 050502B gB 09 30 10.024 +16 59 48.07           ~ 169 0
4 GRB 011211 gB 11 15 16 -21 56.0           ~ 305 0
5 GRB 011121 gB 11 34 26.67 -76 01 41.6       23.0   ~ 286 1
6 GRB 040916 gB 23 00 55.1 -05 38 43           ~ 35 0

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