Open Access
Table 1
Stellar properties of TOI-5734 (TIC 9989136).
| Parameter | TOI-5734 | Reference |
|---|---|---|
| α (J2000; deg) | 111.25581 | Gaia DR3 |
| δ (J2000; deg) | 37.23112 | Gaia DR3 |
| μα (mas/yr) | −27.71 ± 0.02 | Gaia DR3 |
| μδ (mas/yr) | 14.51 ± 0.01 | Gaia DR3 |
| RV (km/s) | −9.18 ± 0.18 | Gaia DR3 |
| π (mas) | 30.70 ± 0.02 | Gaia DR3 |
| U km/s) | 7.0 ± 0.2 | This paper (Sect. 3.5) |
| V (km/s) | 3.6 ± 0.1 | This paper (Sect. 3.5) |
| W (km/s) | −6.7 ± 0.1 | This paper (Sect. 3.5) |
| B − V (mag) | 0.995 ± 0.041 | APASS DR9 |
| G (mag) | 9.1974 ± 0.0028 | Gaia DR3 |
| GBP − GRP (mag) | 1.2775 ± 0.0021 | Gaia DR3 |
| T (mag) | 8.545 ± 0.006 | TIC v8.2 |
| J (mag) | 7.613 ± 0.019 | 2MASS |
| H (mag) | 7.114 ± 0.017 | 2MASS |
| K (mag) | 6.987 ± 0.016 | 2MASS |
| Spectral Type | K3-K4 V | This paper (Sect. 3.7) |
| Teff (K) | 4750 ± 100 | This paper (spec., adopted; Sect. 3.1) |
| Teff (K) | 4670 ± 43 | This paper (phot., Sect. 3.1) |
| log g (cm/s2) | 4.66 ± 0.06 | This paper (spec., adopted; Sect. 3.1) |
| log g (cm/s2) | 4.64 ± 0.10 | This paper (phot., Sect. 3.1) |
| ξ (km/s) | 0.6 ± 0.2 | This paper (spec., adopted; Sect. 3.1) |
| ξ (km/s) | 0.66 ± 0.10 | This paper (phot., Sect. 3.1) |
| [Fe/H] (dex) | −0.13 ± 0.03 | This paper (Sect. 3.1) |
| E(B − V) | ![Mathematical equation: $\[0.000_{-0.000}^{+0.014}\]$](/articles/aa/full_html/2026/04/aa55931-25/aa55931-25-eq6.png) |
Lallement et al. (2018) |
| SMW | 0.72 ± 0.12 | This paper (Sect. 3.4) |
![Mathematical equation: $\[\log~ R_{\mathrm{HK}}^{\prime}\]$](/articles/aa/full_html/2026/04/aa55931-25/aa55931-25-eq7.png) |
−4.47 ± 0.09 | This paper (Sect. 3.4) |
| LX (erg/s) | 2.0 ± 0.5 ×1028 | This paper (Sect. 3.4) |
| log LX/Lbol | ![Mathematical equation: $\[-4.54_{-0.12}^{+0.09}\]$](/articles/aa/full_html/2026/04/aa55931-25/aa55931-25-eq8.png) |
This paper (Sect. 3.4) |
| v sin i⋆ (km/s) | 2.9 ± 0.7 | This paper (synt, Sect. 3.8) |
| v sin i⋆ (km/s) | 3.24 ± 0.46 | Eq. (7) in Rainer et al. (2023) |
| EWLi (mÅ) | 3.3 ± 0.3 | This paper (Sect. 3.2) |
| ALi (dex) | <0.04 | This paper (Sect. 3.2) |
| M⋆ (M⊙) | 0.724 ± 0.009 | This paper (adopted; Sect. 3.7) |
| M⋆ (M⊙) | 0.725 ± 0.044 | This paper (Sect. B) |
| R⋆ (R⊙) | 0.639 ± 0.034 | This paper (adopted; Sect. 3.7) |
| R⋆ (R⊙) | 0.678 ± 0.029 | This paper (Sect. B) |
| L⋆ (L⊙) | 0.181 ± 0.009 | This paper (Sect. 3.7) |
| Age (Myr) | ![Mathematical equation: $\[500_{-150}^{+300}\]$](/articles/aa/full_html/2026/04/aa55931-25/aa55931-25-eq9.png) |
This paper (Sect. 3.6) |
| i⋆ (deg) | ~90 | This paper (Sect. 3.8) |
| Prot (d; GPdSHO) | ![Mathematical equation: $\[11.09_{-0.07}^{+0.07}\]$](/articles/aa/full_html/2026/04/aa55931-25/aa55931-25-eq10.png) |
This paper (Sect. 5) |
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