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Optical and X-ray Observations of the Afterglow to XRF030723

N. Butler·A. Dullighan·P. Ford·G. Ricker·R. Vanderspek·K. Hurley·J. Jernigan·D. Lamb·C. Graziani
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Abstract

The X-ray-flash XRF030723 was detected by the HETE satellite and rapidly disseminated, allowing for an optical transient to be detected ~1 day after the burst. We discuss observations in the optical with Magellan, which confirmed the fade of the optical transient. In a 2-epoch ToO observation with Chandra, we discovered a fading X-ray source spatially coincident with the optical transient. We present spectral fits to the X-ray data. We also discuss the possibility that the source underwent a rebrightening in the X-rays, as was observed in the optical. We find that the significance of a possible rebrightening is very low (~1 sigma).

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N. Butler, A. Dullighan, P. Ford, G. Ricker, R. Vanderspek, K. Hurley, J. Jernigan, D. Lamb, C. Graziani. 2004-01-04. Optical and X-ray Observations of the Afterglow to XRF030723. https://doi.org/10.1063/1.1810812

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