Advances in Astronomy / 2010 / Article / Fig 2

Research Article

Photometry and Low Dispersion Spectroscopy with ESA Gaia

Figure 2

Examples of the color diagrams of opticl afterglows (OAs) of GRBs. The data for t T0 < 10.2 d in the observer frame and corrected for the Galactic reddening are displayed. Multiple indices of the same OA are connected by lines for convenience. The mean colors (centroid) of the whole ensemble of OAs (except for GRB000131 and SN 1998bw) are marked by the large cross. The representative reddening paths for = 0.5 and positions of the main-sequence stars are also shown. Adapted from [911].

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