The GAPS Programme at TNG - LV. Multiple molecular species in the atmosphere of HAT-P-11 b and review of the HAT-P-11 planetary system

Home

All issues

Volume 686 (June 2024)

A&A, 686 (2024) A127

Full HTML

Open Access

Table 1

Main physical and orbital parameters of the HAT-P-11 system.

Parameter^(a)	Value	Reference
Stellar parameters
Spectral class	K4 V	1
M_* (M_⊙)	0.86 ± 0.06	2
R_⋆ (R_⊙)	0.76 ± 0.01	2
T_eff (K)	4780 ± 50	1
[Fe/H]	0.31 ± 0.05	1
log g (log₁₀, cgs)	${4.563}_{- 0.080}^{+ 0.092}$ $\[4.563_{-0.080}^{+0.092}\]$	3
V_sys (km s⁻¹)	−63.24 ± 0.26	4
Distance (ly)	123.17 ± 0.11	4
Age (Gyr)	${6.5}_{- 4.1}^{+ 5.9}$ $\[6.5_{-4.1}^{+5.9}\]$	2
H	7.131 ± 0.021	5
Planetary parameters
M_p (M_j)	0.0787 ± 0.0048	This work
R_p (R_j)	0.4466 ± 0.0059	This work
M_p (M_⊕)	25.0 ± 1.5	This work
R_p (R_⊕)	4.901 ± 0.065	This work
ρ_p (g cm⁻³)	1.172 ± 0.085	This work
T_eq (K)	$847_{- 54}^{+ 46} (663_{- 42}^{+ 36})$ $\[847_{-54}^{+46}\left(663_{-42}^{+36}\right)\]$	This work
P_orb (days)	4.887802443 ± 0.000000034	6
T₀ (BJD_tdb)	2454 957.8132067 ± 0.0000053	6
i (deg)	89.027 ± 0.068	This work
e	${0.2577}_{- 0.0025}^{+ 0.0033}$ $\[0.2577_{-0.0025}^{+0.0033}\]$	This work
ω_p (deg)	${192.0}_{- 3.0}^{+ 2.9}$ $\[192.0_{-3.0}^{+2.9}\]$	This work
a (au)	0.0532 ± 0.0010	This work
K_p (km s⁻¹)	123.4 ± 9.9	This work

Notes. ^(a)The symbols of the parameters listed in the table have the following meanings: M_⋆ – stellar mass; R_⋆ – stellar radius; T_eff – stellar effective temperature; [Fe/H] – stellar metallicity; log g – logarithm of stellar surface gravity; V_sys – systemic radial velocity; H – apparent magnitude in the photometric H band; M_p – planetary mass; R_p – planetary radius; ρ_p – planetary mean density; T_eq – planetary equilibrium temperature computed at the planet-to-star distance during the secondary eclipse, assuming an inefficient (full) heat re-distribution for the derived geometrical albedo $(A_{g} = {0.440}_{- 0.049}^{+ 0.044})$ $\[\left(A_{\mathrm{g}}=0.440_{-0.049}^{+0.044}\right)\]$ ; P_orb – orbital period; T₀ – transit epoch; i – orbital inclination; e – orbital eccentricity; ω_p – planetary argument of periastron; a – orbital semi-major axis; K_p -planetary radial-velocity semi-amplitude.

References. 1. Bakos et al. (2010); 2. Lundkvist et al. (2016); 3. Stassun et al. (2019); 4. Gaia Collaboration (2018); 5. Cutri et al. (2003); 6. Huber et al. (2017).

Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.

Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.

Initial download of the metrics may take a while.