Understanding the dynamical structure of pulsating stars: The center-of-mass velocity and the Baade-Wesselink projection factor of the β Cephei star α Lupi

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Table 3

γ-velocities of α Lup derived in the literature.

Reference	Date	N measures	V _γ	Note

Wright	1909	10	7.8
Campbell	1928	16	7.0
Wilson	1953	16	7.3
Pagel	1956	70	4.0 ± 3.0	^a
Rogers	1962	24	10.0 ± 2.0	^b
Thackeray	1966	9	10.6
Mathias	1994	450	7.4 ± 1.7	^c
Barbier-Brossat	2000	133	5.4 ± 0.6	^d

This work	2012	12	10.1 ± 0.8
This work : V_γ ⋆		11	7.9 ± 0.6

Notes.

^(a)

Estimated from their Fig. 6.

^(b)

Estimated from their Fig. 1.

^(c)

Estimated from their Table 1 (average over eight metallic lines). The precision for each individual line is 0.7 km s^-1.

^(d)

From the original data set of Evans (1967).

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