Discovery of Galactic-centre-ejected star in DESI DR1

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Table 2

Measured parameters of DESI-312 from Gaia and DESI DR1.

Parameter	Value	Unit
Gaia RA	312.7904997	deg
Gaia Dec	-1.00806508	deg
Gaia μ_α cos δ	-12.6 ± 0.0864	mas yr^-1
Gaia μ_δ	-13.8 ± 0.069	mas yr^-1
Gaia Parallax	0.231 ± 0.082	mas
Gaia RUWE	1.03
E (B – V)_SFD	0.0859
Gaia G	17.1246	mag

HRV	-172 ± 0.62	km s⁻¹
T_eff	5579.3 ± 29.1	K
log g	4.21 ± 0.0651	dex
[Fe/H]	0.263 ± 0.027	dex
v sin i	0.01	km s⁻¹

Dhel	4.78 ± 0.83	kpc

V_gcr	313.94 ± 65.78	km s⁻¹
V_ej,GC	$698_{- 27}^{+ 35}$ $Mathematical equation: $698^{+35}_{-27}$$	km s⁻¹
V_crossing	$486_{- 151}^{+ 100}$ $Mathematical equation: $486^{+100}_{-151}$$	km s⁻¹

Notes. Parallax corresponds to the zero-point corrected value. Reported [Fe/H] corresponds to the corrected metallicity (Koposov et al. 2026).

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