Supernova shocks cannot explain the inflated state of hypervelocity runaways from white dwarf binaries

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Volume 693 (January 2025)

A&A, 693 (2025) A114

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Table 3.

Ejection velocities with 1σ uncertainties of D⁶ candidate runaways.

Star	V_ejection (km s⁻¹)	$M_{donor}^{\min}$ $M^{\mathrm{min}}_{\mathrm{donor}}$ (M_⊙)	$M_{donor}^{est}$ $M^{\mathrm{est}}_{\mathrm{donor}}$ (M_⊙)
D6-1	$2254_{- 185}^{+ 248}$ $2254^{+248}_{-185}$	0.8	1.0
D6-2	$1051_{- 54}^{+ 62}$ $1051^{+62}_{-54}$	0.1	0.1
D6-3	$2393_{- 391}^{+ 377}$ $2393^{+377}_{-391}$	0.7	1.1
J1235	$2471_{- 345}^{+ 351}$ $2471^{+351}_{-345}$	0.8	1.1
J0927	$2519_{- 147}^{+ 271}$ $2519^{+271}_{-147}$	1.0	1.1
J0546	$1864_{- 416}^{+ 682}$ $1864^{+682}_{-416}$	0.2	0.7
J1332	$1619_{- 320}^{+ 707}$ $1619^{+707}_{-320}$	0.2	0.4

Notes. Values are from El-Badry et al. (2023). The minimum donor mass and estimated donor masses are shown based on the minimum ejection velocities and median ejection velocity using Bauer et al. (2021) to calculate the masses.

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