Optical and X-ray Observations of the Afterglow to XRF030723

Details Optical and X-ray Observations of the Afterglow to XRF030723 Optical and X-ray Observations of the Afterglow to XRF030723

2004-01-04

arxiv.org/abs/astro-ph/0401020v1

Astronomy and Astrophysics

Astrophysics

4 pages, 2 figures, to appear in Santa Fe GRB Conference Proceedings, 2003

Scientific paper

10.1063/1.1810812

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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