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Table 3
RGS fits with the complete ISM model.
Parameter | 4U1254–690 | 4U 1636–536 | 4U 1735–444 | Aql X–1 | GS 1826–238 | GX 339–4 | GX 9+9 | SAX J1808.4–3658 | Ser X-1 |
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NH (10 25 m-2) | 2.69 ± 0.03 | 3.58 ± 0.07 | 3.28 ± 0.08 | 5.21 ± 0.05 | 4.14 ± 0.06 | 5.1 ± 0.4 | 2.15 ± 0.05 | 1.40 ± 0.03 | 5.0 ± 0.3 |
O/Ha | 0.92 ± 0.04 | 0.85 ± 0.10 | 0.93 ± 0.03 | 0.88 ± 0.02 | 0.92 ± 0.04 | 1.06 ± 0.05 | 0.99 ± 0.03 | 0.91 ± 0.03 | 0.9 ± 0.1 |
Ne/Ha | 0.91 ± 0.03 | 1.31 ± 0.05 | 1.00 ± 0.05 | 0.95 ± 0.07 | 1.23 ± 0.05 | 1.05 ± 0.05 | 1.35 ± 0.07 | 1.37 ± 0.05 | 1.20 ± 0.05 |
Mg/Ha | 1.7 ![]() |
<0.8 | 2.0 ![]() |
1.0 ![]() |
1.4 ![]() |
![]() |
0.4 ![]() |
<0.2 | 0.9 ![]() |
Fe/Ha | 0.16 ![]() |
0.18 ± 0.04 | 0.25 ± 0.10 | 0.11 ± 0.05 | 0.22 ± 0.06 | 0.4 ± 0.1 | 0.19 ± 0.05 | <0.1 | 0.50 ± 0.05 |
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O iib | 0.33 ± 0.15 | 1.4 ± 0.7 | 0.6 ± 0.2 | 0.2 ± 0.1 | 0.6 ± 0.1 | 1.4 ± 0.5 | 0.3 ± 0.1 | 1.67 ± 0.05 | 2.0 ± 0.2 |
O iiib | 0.08 ![]() |
<0.1 | 0.2 ± 0.1 | <0.3 | <0.3 | <0.8 | <0.05 | 0.34 ± 0.05 | <0.4 |
O ivb | 0.5 ± 0.2 | 0.3 ± 0.2 | 0.4 ± 0.2 | 0.4 ± 0.1 | 0.6 ± 0.2 | 0.5 ± 0.1 | 0.4 ± 0.2 | 0.31 ± 0.03 | 0.7 ± 0.5 |
O vb | <0.04 | <0.02 | <0.1 | <0.03 | <0.06 | <0.01 | <0.002 | 0.006 ± 0.002 | 0.3 ± 0.2 |
Ne iib | 0.11 ± 0.06 | 1.2 ± 0.3 | 0.4 ± 0.2 | 0.7 ± 0.2 | 1.4 ± 0.3 | 1.2 ± 0.5 | 0.4 ± 0.2 | 1.3 ± 0.1 | 0.3 ± 0.2 |
Ne iiib | 0.19 ± 0.08 | 0.9 ± 0.2 | 0.5 ± 0.2 | 0.6 ± 0.2 | 0.6 ± 0.3 | 0.9 ± 0.2 | 0.2 ± 0.1 | 1.1 ± 0.1 | 0.8 ± 0.4 |
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O vib | <0.03 | <0.06 | <0.01 | <0.06 | <0.07 | <0.04 | <0.004 | 0.02 ± 0.01 | <0.05 |
O viib | 0.10 ± 0.05 | 0.20 ± 0.07 | 0.2 ± 0.1 | 0.15 ± 0.06 | 0.15 ± 0.06 | 0.4 ± 0.1 | 0.04 ± 0.02 | 2.2 ± 0.5 | 0.24 ± 0.05 |
O viiib | 0.09 ± 0.04 | 0.19 ± 0.05 | 0.3 ± 0.1 | 0.10 ± 0.04 | 0.10 ± 0.03 | 0.3 ± 0.1 | <0.005 | 0.11 ± 0.02 | 0.20 ± 0.06 |
Ne viiib | <0.03 | 0.07 ± 0.04 | <0.05 | <0.01 | <0.01 | 0.06 ± 0.04 | <0.004 | <0.003 | <0.03 |
Ne ixb | 0.05 ± 0.03 | 0.09 ± 0.04 | 0.2 ± 0.1 | 0.07 ± 0.05 | 0.06 ± 0.02 | 0.16 ± 0.04 | 0.03 ± 0.02 | 0.05 ± 0.02 | 0.14 ± 0.05 |
Ne xb | <0.04 | <0.03 | <0.02 | <0.1 | <0.02 | <0.02 | <0.006 | <0.008 | <0.04 |
Mg xib | 0.16 ± 0.05 | 0.08 ± 0.04 | 0.4 ± 0.3 | <0.05 | <0.1 | 0.10 ± 0.05 | 0.06 ± 0.03 | 0.18 ± 0.09 | <0.15 |
Mg xiib | <0.01 | <0.01 | <0.01 | <0.02 | <0.02 | <0.01 | <0.005 | <0.01 | <0.03 |
Fe xviib | <0.01 | 0.02 ± 0.01 | 0.02 ± 0.01 | 0.02 ± 0.01 | 0.02 ± 0.01 | 0.02 ± 0.01 | 0.008 ± 0.004 | 0.02 ± 0.01 | <0.01 |
Fe xviiib | <0.02 | <0.01 | <0.01 | 0.02 ± 0.01 | <0.01 | <0.01 | <0.003 | <0.04 | <0.01 |
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Water ice H2 Ob | 2 ± 1 | 0.9 ± 0.5 | 3 ± 2 | 3 ± 1 | 3 ± 2 | 4.4 ± 2.5 | 2 ± 1 | 0.3 ![]() |
< 6.6 |
Andradite Ca3 Fe2 Si3 O12b | 0.02 ± 0.01 | 0.02 ± 0.01 | 0.02 ± 0.01 | 0.03 ± 0.01 | 0.03 ± 0.01 | 0.03 ± 0.01 | 0.012 ± 0.004 | 0.008± 0.004 | 0.03 ± 0.01 |
Hercinite Fe Al2 O4b | 0.04 ± 0.02 | 0.05 ± 0.02 | 0.04 ± 0.02 | <0.025 | 0.06 ± 0.02 | 0.07 ± 0.02 | 0.03 ± 0.01 | 0.015± 0.007 | 0.07 ± 0.02 |
Lepidocrocite Fe O (OH)b | 0.11 ± 0.06 | 0.4 ± 0.2 | <0.2 | 0.6 ± 0.3 | 0.4 ± 0.2 | 0.03 ± 0.02 | 0.2 ± 0.1 | 0.15 ± 0.08 | 0.15 ± 0.10 |
Pyroxene Mg Si O3b | <1.2 | 1.2 ± 0.5 | <1.1 | <1.2 | <1.1 | 0.3 ![]() |
<1.0 | <0.4 | 1.7 ± 0.5 |
Carbon monoxide COb | <0.11 | 0.3 ± 0.2 | <0.2 | <0.1 | <0.3 | 0.07 ± 0.05 | <0.05 | 0.6 ± 0.1 | <0.2 |
Metallic Feb | 0.3 ![]() |
0.3 ![]() |
0.3 ![]() |
<0.7 | <1.2 | 0.6 ± 0.1 | 0.3 ![]() |
0.13 ± 0.05 | <0.7 |
Magnetite Fe3 O4b | 0.03 ± 0.02 | 0.2 ± 0.1 | <0.04 | 0.3 ± 0.2 | 0.3 ± 0.1 | 0.2 ± 0.1 | <0.02 | <0.005 | 0.2 ± 0.1 |
Olivine Mg1.6 Fe0.4 SiO4b | <0.04 | 0.06 ± 0.03 | <0.1 | <0.04 | <0.08 | 0.07 ± 0.03 | 0.2 ± 0.1 | <0.03 | <0.1 |
Laughing gas N2Ob | 0.4 ± 0.3 | <0.04 | <0.1 | <0.03 | <0.2 | <0.03 | <0.03 | 0.03 ± 0.02 | <0.04 |
Hematite Fe2 O3b | <0.04 | <0.01 | <0.1 | <0.02 | <0.2 | <0.003 | <0.02 | <0.01 | <0.02 |
Iron sulfate Fe SO4b | <0.04 | <0.01 | <0.05 | <0.03 | <0.01 | <0.004 | <0.04 | <0.03 | <0.02 |
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Total oxygen in dustb | 3 ± 1 | 7 ± 2 | 4 ± 1 | 6 ± 1 | 6 ± 1 | 7 ± 2 | 4 ± 1 | 1.5 ± 0.5 | 7 ± 2 |
Total iron in dustb | 0.6 ± 0.2 | 1.3 ± 0.5 | 0.5 ± 0.3 | 1.7 ± 0.5 | 1.5 ± 0.6 | 1.4 ± 0.5 | 0.7 ± 0.2 | 0.3 ± 0.1 | 0.8 ± 0.4 |
Notes. The dust and the three gas phases are represented by the four main blocks.
(a)
Abundances ratios are in the linear proto-Solar abundance units of Lodders & Palme (2009).
(b)
Ionic and molecular column densities are in units of 10 21 m-2 (see also Sect. 4).
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