Extreme mass loss during common envelope evolution: The origin of the double low-mass white dwarf system J2102–4145

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Table 1.

Observed parameters for J2102–4145 adopted in this work.

Component	M (M_⊙)	R (R_⊙)	T_eff (K)
Primary	0.375 ± 0.003	0.0211 ± 0.0002	$13 688_{- 72}^{+ 65}$ $Mathematical equation: $ 13\,688^{+65}_{-72} $$
Secondary	0.314 ± 0.003	$0 . 0203_{- 0.0003}^{+ 0.0002}$ $Mathematical equation: $ 0.0203^{+0.0002}_{-0.0003} $$	$12 952_{- 66}^{+ 53}$ $Mathematical equation: $ 12\,952^{+53}_{-66} $$

Notes. Values from Antunes Amaral et al. (2024); uncertainties are 1σ.

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