How dusty is α Centauri? - Excess or non-excess over the infrared photospheres of main-sequence stars

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Table 4

Properties of the α Centauri binary.

	α Cen A	α Cen B

Sp.type^a	G2 V	K1 V
T_eff (K)^b	5824 ± 24	5223 ± 62
L_star (L_⊙)^b
M_star (M_⊙)^b^c	1.105 ± 0.007	0.934 ± 0.006
R_star (R_⊙)^a	1.224 ± 0.003	0.863 ± 0.005
a_crit (AU)^d	2.778 ± 1.476	2.522 ± 1.598

Common parameters

Inclination to LOS, i (°)^c		79.20 ± 0.04
Arg. of periapsis, ω (°)^c		231.65 ± 0.08
Long. of asc. node, Ω (°)^c		204.85 ± 0.08
Period (yr)^b^c		79.91 ± 0.01
Eccentricity^c		0.5179 ± 0.0008
Distance (pc)^b		1.348 ± 0.035
Age (yr)^e		(4.85 ± 0.50) × 10⁹

Reference.

^(a)

Kervella et al. (2003);

^(b)

Torres et al. (2010);

^(c)

Pourbaix et al. (2002);

^(d)

Holman & Wiegert (1999);

^(e)

Thévenin et al. (2002).

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