Distance from explosion site (”)
3.0
1.0
GRB
0.0
8417.09
8421.89
8416 8418 8420 8422 8424
8416 8418 8420 8422 8424
GRB
3.0 [OII ]λλ 3727, 3729
Nucleus
Nucleus
2.0
1.0
GRB
0.0
-1.0
Nucleus
Nucleus
2.0
-1.0
GRB
Hα
4781.07
4785.87
Observed wavelength (Å)
4780 4782 4784 4786 4788
4780 4782 4784 4786 4788
Observed wavelength (Å)