The post-common envelope central stars of the planetary nebulae Henize 2-155 and Henize 2-161

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Table 6

Modelled and observed binary parameters for Hen 2-155.

	Primary	Secondary

T_eff (K)	90 000 ± 5000	3500 ± 500
Radius (R_⊙)	0.31 ± 0.02	0.30 ± 0.03
Log g	–	4.5^a

Inclination	68.8°± 0.8°
q = ^M₂/_M₁	0.21
M_tot (M_⊙)	0.75 ± 0.05
Period (day)	0.148275 ± 0.000008

Notes.

^(a)

A fixed parameter in the modelling.

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