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Table 3

Afterglow spectral energy distributions of GRB 151027A.

ν [Hz] Fν [mJy] β tc [s] Ref.

5.55 × 1014 7.98 ± 0.66 1109 1
6.93 × 1014 5.53 ± 0.25 1034 1
8.57 × 1014 5.28 ± 0.19 893.4 1
1.14 × 1015 2.48 ± 0.18 1072 1
1.34 × 1015 1.66 ± 0.14 1130 1
1.48 × 1015 1.66 ± 0.14 1086 1
XRT 4.9 × 10-10 993 2

3.72 × 1014 1.08 ± 0.039 1.89 × 104 3
4.56 × 1014 1.89 ± 0.087 1.89 × 104 3
6.32 × 1014 0.851 ± 0.047 1.89 × 104 3
XRT 4.3 × 10-11 1.84 × 104 2

2.19 × 1010 1.7 6.74 × 104 4
1.37 × 1014 0.600 ± 0.055 6.34 × 104 5
1.84 × 1014 0.658 ± 0.061 6.26 × 104 5
2.46 × 1014 0.450 ± 0.042 6.09 × 104 5
3.72 × 1014 0.297 ± 0.027 6.58 × 104 5
4.56 × 1014 0.311 ± 0.034 6.35 × 104 6
6.74 × 1014 0.258 ± 0.024 6.46 × 104 5
XRT 3.5 × 10-12 6.35 × 104 2

5.0 × 109 0.29 ± 0.05 7.69 × 106 7
8.4 × 109 0.18 ± 0.03 7.69 × 106 7
1.5 × 1010 0.14 ± 0.03 7.69 × 106 7

Notes. For the XRT data the 0.3–10 keV flux in erg/cm2/s is shown in addition to the spectral slope β.

Reference. [1] this work: UVOT observations; [2] XRT automatic analysis (http://www.swift.ac.uk/xrt_products/00661775); [3] Yano et al. (2015); [4] Laskar et al. (2015); [5] Cano (2015); [6] Oksanen et al. (2015); [7] this work: VLBA observations.

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