The spins of stripped B stars support magnetic internal angular momentum transport

Open Access

Table 1.

Orbital and atmospheric properties of the stripped star in LB-1 according to Shenar et al. (2020) and Lennon et al. (2021) in the Be+Bstr scenario.

	Shenar et al. (2020)	Lennon et al. (2021)
P_orb/d	78.7999 ± 0.0097	–
q	4.7 ± 0.4	–
M_totsin³i/M_⊙	2.16 ± 0.05	–

T_eff/K	12 700 ± 2000	12 500 ± 100
logg/cm s⁻²	3.0 ± 0.2	3.0 ± 0.2
v_rotsini/km s⁻¹	7 ± 2	7
n_He/n_H	0.21 ^(a)	0.2

log(L/M/L_⊙/M_⊙)	2.81 ± 0.34	2.80 ± 0.21
Y_surface	0.46 ^(a)	0.44 ± 0.12
[N/C]	> 0 ^(b)	2.25 ± 0.21 ^(c)

Notes. The last three lines were calculated by us.

^(a)

Hawcroft & Shenar (priv. comm.) find n_He/n_H = 0.31 ± 0.05 ⇔ Y = 0.55 ± 0.04.

^(b)

Hawcroft & Shenar (priv. comm.) find [N/C]=2.24 ± 0.38.

^(c)

Estimated from their Table 3.

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