The GROND gamma-ray burst sample - II. Fireball parameters for four gamma-ray burst afterglows

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Table 11.

Parameter summary of the four GRBs.

GRB	$A_{v}^{Gal}$ $A^{\mathrm{Gal}}_{\mathrm{v}}$ (mag) ^a	$A_{v}^{host}$ $A^{\mathrm{host}}_{\mathrm{v}}$ (mag) ^b	$N_{H}^{Gal}_{, 22}$ ${N_{\mathrm{H}}^{\mathrm{Gal}}}_{,22}$ (cm⁻²) ^a	$N_{H}^{host}_{, 22}$ ${N_{\mathrm{H}}^{\mathrm{host}}}_{,22}$ (cm⁻²) ^b	z	ρ	$E_{iso}^{γ}_{, 52}$ ${E_{\mathrm{iso}}^{\gamma}}_{,52}$ (erg)	E_jet _,51 (erg)
GRB 100418A	0.22	0.01 $_{- 0.01}^{+ 0.03}$ $^{+0.03}_{-0.01}$	0.06	0.57 $_{- 0.08}^{+ 0.09}$ $^{+0.09}_{-0.08}$	0.625	Wind	$0 . 10_{- 0.03}^{+ 0.06}$ $0.10^{+0.06}_{-0.03}$	$0 . 40_{- 0.08}^{+ 0.11}$ $0.40^{+0.11}_{-0.08}$
GRB 110715A	1.82	0.05 $_{- 0.01}^{+ 0.01}$ $^{+0.01}_{-0.01}$	0.43	0.16 $_{- 0.04}^{+ 0.03}$ $^{+0.03}_{-0.04}$	0.820	Wind	$2 . 93_{- 2.81}^{+ 5.79}$ $2.93^{+5.79}_{-2.81}$	$2 . 27_{- 0.24}^{+ 0.26}$ $2.27^{+0.26}_{-0.24}$
GRB 121024A	0.27	0.18 $_{- 0.04}^{+ 0.04}$ $^{+0.04}_{-0.04}$	0.08	0.30 $_{- 0.29}^{+ 0.46}$ $^{+0.46}_{-0.29}$	2.298	Wind	$8 . 40_{- 2.20}^{+ 2.60}$ $8.40^{+2.60}_{-2.20}$	$0 . 40_{- 0.21}^{+ 0.15}$ $0.40^{+0.15}_{-0.21}$ ^c
GRB 130418A	0.09	0.00 $_{- 0.01}^{+ 0.01}$ $^{+0.01}_{-0.01}$	0.03	0.08 $_{- 0.08}^{+ 0.08}$ $^{+0.08}_{-0.08}$	1.218	Wind	$0 . 39_{- 0.36}^{+ 0.51}$ $0.39^{+0.51}_{-0.36}$	$1 . 17_{- 0.32}^{+ 0.39}$ $1.17^{+0.39}_{-0.32}$

Notes.

The Galactic gas absorption and dust extinction values were taken from Schlafly & Finkbeiner (2011).

The host magnitudes were derived from the analysis of the combined SED using optical/NIR and X-ray data. This value was derived using the DC formalism.

The value for the GS formalism corresponds to 5 × 10⁴⁹ erg.

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