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Table 1

XMM-Newton/RGS observations used in this paper.

Source IDa Length (ks)b l,bc d (kpc)d NH (1025   m-2)e

4U 1254–690 0060740901 28.5 303.5, −6.4 15.5f 2.2–2.9
0405510301 60.6
0405510501 60.7

4U 1636–536 0105470401 20.6 332.9, −4.8 5.95f 2.6–3.6
0303250201 30.9
0500350301 31.5
0606070201 28.8

4U 1735–444 0090340201 20.6 346.1, −7.0 6.5f 2.6–3.0

Aql X–1 0406700201 52.6 35.7, −4.1 3.9f 2.8–3.4

GS 1826–238 0150390101 106.3 9.3, −6.1 6.7f 1.7–1.9
0150390301 91.5

GX 339–4 0148220201 20.3 338.9, −4.3 8g 3.7–5.3
0148220301 13.7
0204730201 13.3
0204730301 13.4
0605610201 32.9

GX 9+9 0090340101 10.6 8.5,9.0 7.5h 2.0–2.1
0090340601 21.7

SAX J1808.4–3658 0560180601 63.7 335.4, −8.1 2.77f 1.1–1.3

Ser X–1 0084020401 21.5 36.1,4.8 7.7f 4.0–4.7
0084020501 21.7
0084020601 21.8

Notes.

(a, b)

Identification number and duration of the observation.

(c, d, e)

Source Galactic coordinates in degrees, distance from the Sun, and hydrogen column density (see Kalberla et al. 2005 and Dickey & Lockman 1990).

(f)

Distance estimates are taken from Galloway et al. (2008).

(g)

For GX 339-4 we adopt the distance as suggested by Zdziarski et al. (2004).

(h)

The distance for GX 9+9 is the mean value between those ones provided by Christian & Swank (1997) and Zdziarski et al. (2004).

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