Table 1
Identifiers and stellar parameters of Gl725 A and Gl725 B.
| Star A | |||
|---|---|---|---|
| Identifiers | |||
| HD | 173739 | ||
| Gliese | 725 A | ||
| 2MASS | J18424666+5937499 | ||
| Karmn | J18427+596N | ||
| TIC | 359676790 | ||
| Gaia DR3 | 2154880616774131840 | ||
| Parameter | Units | Value | References |
| RA | hms | 18 42 46.704386 | 1 |
| dec | dms | +59 37 49.409446 | 1 |
| pmRA | mas/yr | −1311.679 ± 0.027 | 1 |
| pmdec | mas/yr | 1792.325 ± 0.026 | 1 |
| Parallax | mas | 283.84 ± 0.02 | 1 |
| Distance | pc | 3.5231 ± 0.0002 | 1 |
| Spectral type | M3 | 2 | |
| V | mag | 8.93 ± 0.02 | 3 |
| B | mag | 10. 43 ± 0.05 | 3 |
| G | mag | 7.854 ± 0.002 | 1 |
| J | mag | 5.19 ± 0.02 | 4 |
| H | mag | 4.47 ± 0.04 | 4 |
| K | mag | 4.43 ± 0.02 | 4 |
| Mass | M⊙ | 0.330 ± 0.008 | This work |
| Radius | R⊙ | 0.351 ± 0.003 | This work |
| log(L*/L⊙) | −1.809 ± 0.002 | 5 (a) | |
| Prot | day | 103.1 ± 6.1 | 6 |
| log ɡ SOPHIE | dex | 4.90 ± 0.33 | This work(b) |
| log ɡ SPIRou | dex | 4.77 ± 0.06 | 5 (a) |
| log ɡ | dex | 4.87 ± 0.01 | This work(c) |
| Teff, SOPHIE | K | 3433 ± 68 | This work(b) |
| Teff, SPIRou | K | 3470±31 | 5 (a) |
| [Fe/H] | dex | −0.19 ± 0.13 | This work(b) |
| [M/H] | dex | −0.26 ± 0.10 | 5 (a) |
| [α/Fe] | dex | 0.15 ± 0.04 | 5 (a) |
| Age | Gyr | 6.2 ± 2.3 | This work(a) |
| StarB | |||
| Identifiers | |||
| HD | 173740 | ||
| Gliese | 725 B | ||
| 2MASS | J18424688+5937374 | ||
| Karmn | J18427+596S | ||
| TIC | 392572237 | ||
| Gaia DR3 | 2154880616774131712 | ||
| Parameters | Units | Value | References |
| Spectral type | M4 | 2 | |
| Mass | M⊙ | 0.25 ± 0.02 | 5 |
| Radius | R⊙ | 0.280 ± 0.005 | 5 |
| log(L*/L⊙) | −2.038 ± 0.003 | 5 | |
| Prot | day | 135±15 | 6 |
| Teff | K | 3379 ±31 | 5 |
Notes. (a)Derived from SPIRou spectra. (b)Derived from SOPHIE spectra. (c)Derived from the estimated mass and radius. (1) Gaia Collaboration 2020; (2) Fouqué et al. 2018; (3) Fabricius et al. 2002; (4) Cutri et al. 2003; (5) Cristofari et al. 2022a; (6) Donati et al. 2023.
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