Open Access

Table 5

Dust column densities for each chemical compound in 1016 cm−2 which corresponds to the best fit of each source.

Compound # Dust compound Cygnus X-2 GX 9+9 Ser X-1 SWIFT J1910.2-0546 XTE J1817-330
1 a – MgFeSiO4 4.5 ± 0.8
2 c – Mg1.56Fe0.4Si0.91C4 <1.2 5.3 ± 3.4 -
3 a – Mg0.6Fe0.4SiO3 <1.8 <1
4 c – Mg0.6Fe0.4SiO3 <3
5 c – MgSiC3
6 a – MgSiO3 <0.4
7 c – Fe2SiC4
8 c – Mg2SiC4
9 a – Mg0.75Fe0.25SiC3 8 ± 1 17.1 ± 0.2 9 ± 4 8 ± 1
10 c – Fe3C4 <0.9
11 c – FeS
12 c – FeS2 <1 <0.5 <0.2
13 Fe metal 1.8 ± 0.9 <1.3 8 ± 2 3 ± 1 2.3 ± 0.7

Cstat/d.o.f. 1311/1056 2098/1667 1005/787 2122/1837 1188/1002

D 0.005 0.004 0.003 0.004 0.007

Notes. The symbol a refers to amorphous compounds and c to crystalline. In the last rows, we present the Cstat of the best fit in every source compared to the degrees of freedom (d.o.f.) and the dust-to-gas mass ratio (D).

Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.

Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.

Initial download of the metrics may take a while.