Identification and characterization of optical companions to the population of millisecond pulsars in the globular cluster M3

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Table 2

Main radio timing parameters and inferred physical parameters for M3D and M3F.

Parameter	M3D		M3F

Radio timing parameters
α (J2000)	13:42:11.35220(9)		13:42:12.37908(6)
δ (J2000)	28:22:30.160(1)		28:22:37.270(1)
P_b (days)	128.7454866(5)		2.991987692(4)
P (ms)	5.4429751130405(3)		4.4038055250797(2)
x_p (lt-s)	38.521421(2)		2.225893(4)
DM (pc cm⁻³)	26.3677(3)		26.436(2)
e	7.47556(1) × 10⁻²		–
θ_⊥ (arcmin)	0.1464		0.1677

Inferred physical parameters

	Young	Old	Young	Old

M_COM (M_⊙)	${0.33}_{- 0.07}^{+ 0.06}$ $0.33_{ - 0.07}^{ + 0.06}$	${0.20}_{- 0.02}^{+ 0.02}$ $0.20_{ - 0.02}^{ + 0.02}$	${0.32}_{- 0.06}^{+ 0.07}$ $0.32_{ - 0.06}^{ + 0.07}$	${0.21}_{- 0.02}^{+ 0.02}$ $0.21_{ - 0.02}^{ + 0.02}$
log T_eff (K)	${4.14}_{- 0.06}^{+ 0.05}$ $4.14_{ - 0.06}^{ + 0.05}$	${4.00}_{- 0.03}^{+ 0.04}$ $4.00_{ - 0.03}^{ + 0.04}$	${4.07}_{- 0.04}^{+ 0.06}$ $4.07_{ - 0.04}^{ + 0.06}$	${3.98}_{- 0.02}^{+ 0.02}$ $3.98_{ - 0.02}^{ + 0.02}$
Cooling age (Gyr)	${0.31}_{- 0.11}^{+ 0.15}$ $0.31_{ - 0.11}^{ + 0.15}$	${3.93}_{- 1.18}^{+ 1.19}$ $3.93_{ - 1.18}^{ + 1.19}$	${0.51}_{- 0.18}^{+ 0.29}$ $0.51_{ - 0.18}^{ + 0.29}$	${5.15}_{- 1.19}^{+ 1.20}$ $5.15_{ - 1.19}^{ + 1.20}$
M_NS(M_⊙)	${1.72}_{- 0.32}^{+ 0.24}$ $1.72_{ - 0.32}^{ + 0.24}$	${1.28}_{- 0.05}^{+ 0.09}$ $1.28_{ - 0.05}^{ + 0.09}$	${1.70}_{- 0.32}^{+ 0.25}$ $1.70_{ - 0.32}^{ + 0.25}$	${1.72}_{- 0.31}^{+ 0.22}$ $1.72_{ - 0.31}^{ + 0.22}$
i (deg)	${47.33}_{- 7.13}^{+ 7.91}$ $47.33_{ - 7.13}^{ + 7.91}$	${81.43}_{- 7.88}^{+ 5.89}$ $81.43_{ - 7.88}^{ + 5.89}$	${32.46}_{- 4.34}^{+ 4.61}$ $32.46_{ - 4.34}^{ + 4.61}$	${54.08}_{- 8.35}^{+ 7.06}$ $54.08_{ - 8.35}^{ + 7.06}$

Notes. The radio timing parameters are taken from Li et al. (2024). For the inferred physical parameters of each system, two solutions are shown: the young and the old ones, as identified with cyan and magenta colors, respectively, in Fig. 6 and Fig. 8 (see Sections 3.1.2 and 3.1.3).

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