Critical study of the distribution of rotational velocities of Be stars - I. Deconvolution methods, effects due to gravity darkening, macroturbulence, and binarity

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Table 8

Average pnrc velocity ratios ⟨Vsini/V_c⟩ and ⟨V/V_c⟩ for mass-age groups of the studied Be star sample.


	t/t_MS ≤ 0.4			0.4 <t/t_MS ≤ 0.8			t/t_MS> 0.8



	⟨M/M_⊙⟩	⟨t/t_MS⟩	n	⟨M/M_⊙⟩	⟨t/t_MS⟩	n	⟨M/M_⊙⟩	⟨t/t_MS⟩	n
M/M_⊙ ≤ 7.5	5.2	0.09	20	5.0	0.62	29	5.6	0.97	34
7.5 <M/M_⊙ ≤ 15	10.1	0.11	20	10.7	0.63	40	10.5	0.96	40
15 <M/M_⊙ ≤ 25	19.0	0.12	7	18.4	0.75	9	18.2	0.98	15
	t/t_MS ≤ 0.5			t/t_MS> 0.5


M/M_⊙> 25	33.7	0.33	6	33.6	0.87	13

	⟨Vsini/V_c⟩	⟨V/V_c⟩		⟨Vsini/V_c⟩	⟨V/V_c⟩		⟨Vsini/V_c⟩	⟨V/V_c⟩



M/M_⊙ ≤ 7.5	0.42	0.54		0.54	0.69		0.61	0.77
7.5 <M/M_⊙ ≤ 15	0.49	0.63		0.56	0.72		0.57	0.73
15 <M/M_⊙ ≤ 25	0.40	0.51		0.59	0.75		0.63	0.81
	t/t_MS ≤ 0.5			t/t_MS> 0.5


M/M_⊙> 25	0.56	0.71		0.57	0.72

Notes. For both series of average velocity ratios the standard deviations are ≳0.17.

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