Figure 1: The light curves of the OA of GRB 030329 in the individual passbands. The whole R band light curve is displayed to show the time evolution of the brightness while for other filters only those (usually averaged) points which were used for the calculation of the color indices are plotted. Error bars are included but they are usually smaller than the symbols used. In densely covered intervals the points are connected by lines for convenience. (This figure is available in color in electronic form.) | |
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Figure 2: The time evolution of the color indices of the OA of GRB 030329 (solid circles). The points are connected by the lines in the densely covered parts of the curves for convenience. The standard deviation of each point is included. The horizontal solid line with the dashed error bars marks the mean color indices of the ensemble of 25 OAs, determined by Simon et al. (2003a). The synthetic colors of SN 1998bw, SN 2002ap and the group of type Ic SNe, with the passbands and t-T_{0} recalculated for z=0.168, appropriate for GRB 030329, are also plotted for comparison. The colors of the 25 OAs are found to be independent of the redshift. (This figure is available in color in electronic form.) | |
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Figure 3: Color changes of the OA of GRB 030329 during the late phase. The points are connected by the line to clearly trace the time evolution of the colors. Notice that the reddening occurs first in B-V, then V-R, and finally in R-I. The numbers at the points denote t-T_{0} in days to allow an easy comparison with Figs. 4 and 5. (This figure is available in color in electronic form.) | |
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Figure 4: B-V vs. V-R diagram of the OA of GRB 030329 (empty circles). The points are connected by the line to show the time evolution of the colors. The large cross denotes the centroid and standard deviations of the colors of the ensemble of 25 OAs for t-T_{0}< 10 days (Simon et al. 2003a). Empty triangles mark the synthetic colors of SN 1998bw. The numbers denote t-T_{0} in days (for z=0.168), starting from the appropriate GRBs. (This figure is available in color in electronic form.) | |
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Figure 5: V-R vs. R-I diagram of the OA of GRB 030329. The arrangement is analogous to Fig. 4. (This figure is available in color in electronic form.) | |
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