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Table 4
Best fit extinction curve parameters for the afterglow cases where FM is the best model (see Table. 2).
| Parameter | 070802 | 080605 | 080805 | 080607 |
|
|
||||
| c1 | 0.02 ± 0.25 | −0.81 ± 0.16 | 0.26 ± 0.15 | 1.19 ± 0.43 |
| c2 (μm) | 0.82 ± 0.16 | 0.86 ± 0.07 | 0.57 ± 0.06 | 0.37 ± 0.10 |
| c 3 | 1.46 ± 0.29 | 0.35 ± 0.04 | 0.89 ± 0.11 | 2.96 ± 0.66 |
| c4 (μm2) | 0.26 ± 0.08 | 0.26 ± 0.10 | 0.15 ± 0.14 | 0.17 ± 0.10 |
| c5 (μm-1) | 5.03 ± 0.31 | 6.30 ± 0.41 | 6.50 ± 0.14 | 5.88 ± 0.34 |
| γ (μm-1) | 0.99 ± 0.01 | 0.90 ± 0.02 | 0.90 ± 0.02 | 1.20 ± 0.04 |
| RV |
|
|
2.48 ± 0.39 |
|
| x0 (μm-1) | 4.64 ± 0.01 | 4.55 ± 0.01 | 4.57 ± 0.01 | 4.52 ± 0.02 |
| β1 | 0.88 ± 0.06 | 0.76 ± 0.03 | 0.81 ± 0.02 |
|
| AV (mag) | 1.19 ± 0.15 |
|
1.53 ± 0.13 |
|
Notes. GRB 080607 was observed with Keck telescope and is not a part of our spectroscopic sample.
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