Open Access
Table 1
Orbital and physical parameters of the WASP-7 system.
| Parameter | Symbol | Value | Ref. |
|---|---|---|---|
| Stellar parameters | |||
| Stellar brightness | V (mag) | 9.51 | 1 |
| Stellar mass | M* (M⊙) | 1.285 ± 0.063 | 2 |
| Stellar radius | R* (R⊙) | 1.466 ± 0.094 | 2 |
| Stellar effective temperature | Teff (K) | 6400 ± 100 | 2 |
| Projected stellar rotation speed | v sin i (km s−1) | 14 ± 2 | 3 |
| Metallicity | [Fe/H] | 0.0 ± 0.1 | 2 |
| Planet parameters | |||
| Planet mass | Mp (MJup) |  |
2 |
| Planet radius | Rp (RJup) | 1.363 ± 0.093 | 2 |
| Planet surface gravity | log gp (cgs) |  |
2 |
| Equilibrium temperature | Teq (K) | 1530 ± 45 | 4 |
| Transit parameters | |||
| Orbital Period | P (days) | 4.9546416 ± 3.5 × 10−6 | 3 |
| Mid-transit | T0 (BJDtdb–2 400 000) | 55446.635 ± 0.0003 | 3 |
| Transit duration | T14 (h) |  |
3 |
| Ingress duration | T12 (min) |  |
3 |
| System parameters | |||
| Orbital inclination | i (deg) | 87.03 ± 0.93 | 5 |
| Semimajor axis | a [AU] |  |
2 |
| Stellar velocity semi-amplitude | K* (m s−1) |  |
2 |
| Systemic velocity | γ (km s−1) | −29.35 ± 0.53 | 6 |
| Projected obliquity | λ (deg) | 86±6 | 3 |
References. (1) Hellier et al. (2009); (2) Bonomo et al. (2017); (3) Albrecht et al. (2012); (4) Southworth (2012); (5) Southworth et al. (2011); (6) Gaia Collaboration (2018).
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