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Table 5

UV/X-ray simultaneous fits with the final complete ISM model.

Phase Par A B C D E F G
va  ≡  − 297.6  ≡  − 244  ≡  − 124  ≡  − 69  ≡ 6  ≡ 66  ≡ 132

Cold gas σva <2 9.6 ± 0.1
NHb 0.9 ± 0.1 44 ± 1 8 ± 1 0.09 ± 0.04
T (eV) <0.6 1.26 ± 0.01 1.24 ± 0.02 2.7 ± 0.1
C/Hc  < 0.1
N/Hc 0.8 ± 0.1
O/Hc 0.5 ± 0.1
Ne/Hc 1.3 ± 0.1
Mg/Hc 0.41 ± 0.04
Al/Hc 0.06 ± 0.01
Si/Hc 0.14 ± 0.04
S/Hc 0.67 ± 0.01
Fe/Hc 0.07 ± 0.01
Ni/Hc 0.07 ± 0.01

Warm gas σva 9.8 ± 0.1 4.7 ± 0.2 18.5 ± 0.1
NHb 0.52 ± 0.01 0.065 ± 0.002 0.010 ± 0.002 0.034 ± 0.002 5.4 ± 0.3 2.9 ± 0.1 0.013 ± 0.002
log ξb  −0.03 ± 0.01 0.17 ± 0.01 0.22 ± 0.08  −2.3 ± 0.2  −1.13 ± 0.01  −1.12 ± 0.01 0.7 ± 0.2
C/Hc  ≡ 1  ≡ 1
O/Hc  ≡ 1 0.5 ± 0.1
Al/Hc  ≡ 1 0.33 ± 0.08
Si/Hc  ≡ 1 0.60 ± 0.01
Fe/Hc  ≡ 1 0.90 ± 0.06

Hot gas σva <11 16 ± 6
NHb <0.3 <0.4 <0.5 1.7 ± 0.5 19 ± 3 4 ± 1 <1
T (eV) 40 ± 10 55 ± 15 51 ± 14 14 ± 1 160 ± 10 70 ± 10 55 ± 15

Molecules COd 7.5 ± 1.5
H2O iced <1.0
MgSiO3d <0.8
Metallic Fed <0.6
Fe2O3d <0.3
H2de 10–50 4–6

Notes. 

(a)

Velocity units are same as in Table 1. Doppler velocities v are fixed.

(b)

The hydrogen column densities NH are in units of 1023 m-2. The ionization parameter ξ is in units of 10-9 W m.

(c)

Abundances ratios are in the linear proto-Solar abundance units of Lodders & Palme (2009).

(d)

Molecular column densities are in units of 1020 m-2.

(e)

H2 column densities are taken from Wakker (2006).

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