The cosmic-ray and gas content of the Cygnus region as measured in γ-rays by the Fermi Large Area Telescope

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Table 2

Best-fit parameters describing emission from interstellar gas (Eq. (3)) under the assumption of a uniform H i spin temperature T_S = 250 K.

Energy bin^a	q _H I, 1 ^b	q _CO, 1 ^c	q _H I, 2 ^b	q _{CO, 2} ^c	q _{A _V} ^d

0.1–0.178	7.9 ± 1.1	3.3 ± 1.0	8.5 ± 1.4	0.00 ± 0.06	10 ± 30
0.178–0.316	5.9 ± 0.3	2.2 ± 0.3	4.7 ± 0.4	0.000 ± 0.002	19 ± 5
0.316–0.562	3.27 ± 0.11	1.16 ± 0.08	3.23 ± 0.14	0.00 ± 0.06	11.0 ± 1.8
0.562–1	1.95 ± 0.06	0.59 ± 0.04	1.72 ± 0.10	0.5 ± 0.3	6.2 ± 0.7
1–1.78	0.98 ± 0.03	0.328 ± 0.016	0.74 ± 0.04	0.12 ± 0.13	2.6 ± 0.3
1.78–3.16	0.389 ± 0.016	0.141 ± 0.008	0.36 ± 0.02	0.02 ± 0.06	0.86 ± 0.15
3.16–5.62	0.151 ± 0.005	0.044 ± 0.004	0.113 ± 0.013	0.02 ± 0.03	0.39 ± 0.08
5.62–10	0.050 ± 0.003	0.016 ± 0.002	0.046 ± 0.006	0.000 ± 0.005	0.15 ± 0.04
10–31.6	0.0085 ± 0.0015	0.0059 ± 0.0010	0.021 ± 0.003	0.002 ± 0.008	0.043 ± 0.019
31.6–100	0.0024 ± 0.0007	0.0016 ± 0.0004	0.0007 ± 0.0014	0.002 ± 0.003	0.002 ± 0.007

Notes. Subscripts refer to the two regions separated in analysis: 1) the Cygnus complex in the Local Spur, 2) the outer Galaxy. Some parameters are poorly determined but they are reported for completeness.

^(a)

GeV

^(b)

10^-27 s^-1 sr^-1;

^(c)

10^-6 cm^-2 s^-1 sr^-1 (K km s^-1)^-1;

^(d)

10^-6 cm^-2 s^-1 sr^-1 mag^-1.

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