SIMBAD references

2005A&A...433..113M - Astronomy and Astrophysics, volume 433, 113-116 (2005/4-1)

GRB 040403: A faint X-ray rich gamma-ray burst discovered by INTEGRAL.

MEREGHETTI S., GOETZ D., ANDERSEN M.I., CASTRO-TIRADO A., FRONTERA F., GOROSABEL J., HARTMANN D.H., HJORTH J., HUDEC R., HURLEY K., PIZZICHINI G., PRODUIT N., TARANA A., TOPINKA M., UBERTINI P. and DE UGARTE POSTIGO A.

Abstract (from CDS):

GRB 040403 is one of the faintest gamma-ray bursts for which a rapid and accurate localization has been obtained. Here we report on the gamma-ray properties of this burst, based on observations with the IBIS instrument aboard INTEGRAL, and the results of searches for its optical afterglow. The steep spectrum (power-law-photon-index=1.9 in the 20-200keV range) implies that GRB 040403 is most likely an X-ray rich burst. Our optical limit of R>24.2 at 16.5h after the burst, indicates a rather faint afterglow, similar to those seen in other relatively soft and faint bursts.

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Journal keyword(s): gamma rays: bursts - gamma rays: observations

Simbad objects: 4

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