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Table 3.

Parameters for empirical fits to radio SEDs of GRB 160131A from 0.8 to 25.8 d in a multi-component approach (see Fig. 5).

tobs 0.8 d 1.7 d 5.8 d 25.8 d
Ncomp 2 3 2 3

Type SPL (C?) SPL (A?) SPL (A)
βpl −9.9 ± 0.3 0.68 (c) 1.8 ± 0.4

Type BPL (A) BPL (A) BPL (B) BPL (C)
νpeak(a) 8.9 (c) 8.9 (c) 7.4 ± 0.2 4.9 ± 0.1
Fpeak(b) 0.32 (c) 0.1 (c) 0.68 ± 0.07 0.15 ± 0.01
β1, bpl 2.2 (c) 2.2 (c) 15.5 ± 1.3 6.8 ± 0.2
β2, bpl 0.5 (c) 0.5 (c) −19.9 ± 2.0 −7.8 ± 0.2

Type BPL (B) BPL (B) BPL (B)
νpeak(a) 9.8 ± 0.5 8.5 ± 0.2 8.9 ± 0.5
Fpeak(b) 1.2 ± 0.5 0.9 ± 0.1 0.08 ± 0.01
β1, bpl 6.6 ± 0.3 15.8 ± 1.3 7.1 ± 1.2
β2, bpl −16.8 ± 1.8 −4.4 ± 0.2 −4.4 ± 1.2

1.8 1.03 1.7 1.1

Notes. The letter in parentheses in the “Type” rows indicates the associated component. See the caption of Table 2 for a full description of the fit parameters.

(a)

In units of GHz.

(b)

In units of mJy.

(c)

Fixed.

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