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Table 2

Estimates for atmospheric parameters for the single stars.

Star Teff (K) log g(cm s-2) vt  (km s-1)
Si 4686 1 2
003 21 000 – 2.50 14 13
028 24 000 – 2.75 14 14
060 19 500 – 2.65 14 13
069 23 500 23 000 2.75 15 15
082 25 500 25 500 3.00 14 13
087 29 000 28 500 3.25 6 12
165 27 000 25 500 3.00 6 14
178 26 500 26 500 3.00 14 9
232 15 500 – 2.30 8 8
261 14 000 – 2.15 16 11
269 12 000 – 1.90 13 12
270 17 500 – 2.90 9 1
293 20 000 – 3.00 – 0
302 20 500 – 2.90 12 15
307 22 000 – 2.80 11 7
315 23 000 – 3.15 10 11
417 18 500 – 2.55 12 10
431* 19 000 – 2.35 16 18
458* 13 000 – 1.60 8 16
533* 18 000 – 2.10 15 14
578 21 500 – 2.75 14 11
590 24 000 23 000 2.80 14 14
591 25 000 – 2.80 13 14
672 25 000 24 000 3.00 10 10
696 23 500 – 2.75 13 11
714 23 500 – 3.00 11 11
732 20 000 – 2.50 12 12
745 18 000 – 2.80 – 3
831 14 000 – 2.10 10 21
841 17 500 – 2.40 13 20
845 23 500 – 3.25 7 7
855 17 000 – 2.75 – 4
867 24 500 24 000 3.15 13 11

Notes. Effective temperature estimates are from the silicon ionisation balance (Si) or the He ii profile at 4686 Å. Microturbulence estimates are from either the relative strength of the Si iii lines (1) or the absolute silicon abundance (2).

(*)

Atmospheric parameter estimates found from extrapolation.

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