Orbital evolution of circumbinary planets due to creep tides

Home

All issues

Volume 666 (October 2022)

A&A, 666 (2022) A53

Full HTML

Open Access

Table 2

Physical and orbital parameters of confirmed circumbinary systems, and tidal parameters estimated with our model.

	α	e₂	M₂	Viscosity regime	α_crit,g	α_crit,s	Migration direction
Kepler-16 ⁽¹⁾	0.318	0.0069	0.175	Gaseous	0.086	0.260	Outward	3 × 10¹³	6 × 10¹⁴
Kepler-34 ⁽²⁾	0.210	0.182	0.250	Gaseous	0.309	1.340	Inward	7 × 10¹³	3 × 10¹²
Kepler-35 ⁽²⁾	0.292	0.042	0.249	Gaseous	0.171	0.559	Outward	2 × 10¹²	1× 10¹²
Kepler-38 ⁽³⁾	0.316	0.023	0.165	?	0.162	0.492	?	5 × 10¹²	8 × 10¹²
Kepler-47b ⁽⁴⁾	0.283	0.021	0.194	Gaseous	0.135	0.455	Outward	3× 10¹²	6× 10¹²
Kepler-47d ⁽⁵⁾	0.116	0.024	0.194	Gaseous	0.100	0.701	Outward	2 × 10¹⁵	3 × 10¹³
Kepler-47c ⁽⁴⁾	0.085	0.044	0.194	?	0.121	1.070	Inward	7 × 10¹⁵	7 × 10¹³
Kepler-64 ⁽⁶⁾	0.267	0.0702	0.166	Gaseous	0.261	0.921	Outward	1 × 10¹⁵	1 × 10¹³
Kepler-413 ⁽⁷⁾	0.286	0.1181	0.240	Gaseous	0.290	0.966	Inward	5 × 10¹³	3 × 10¹¹
Kepler-453 ⁽⁸⁾	0.235	0.0359	0.142	Gaseous	0.191	0.753	Outward	3 × 10¹⁴	3 × 10¹³
Kepler-1647 ⁽⁹⁾	0.047	0.0581	0.247	Gaseous	0.098	1.367	Inward	3 × 10¹⁸	1 × 10¹⁶
Kepler-1661 ⁽¹⁰⁾	0.295	0.057	0.181	Gaseous	0.235	0.761	Outward	2 × 10¹⁴	3 × 10¹³
TOI-1338 ⁽¹¹⁾	0.287	0.093	0.173	Gaseous	0.303	1.007	Inward	5 × 10¹²	1 × 10¹¹

Notes. The viscosity regime of the CB planet is inferred from the mass and radius, compared with the γ₂-values estimated for the Solar System planets in Ferraz-Mello (2013). The critical α-values and the migration direction are discussed in Sect. 4.2.1., while the tidal timescales for the semimajor axis evolution are explained in Sect. 4.2.2. For Kepler-38 we consider the mass estimated by means of a mass-radius fit in Zoppetti et al. (2019a), while the eccentricity adopted corresponds to the forced eccentricity.

References. ⁽¹⁾Doyle et al. (2011). ⁽²⁾Welsh et al. (2012). ⁽³⁾Orosz et al. (2012a). ⁽⁴⁾Orosz et al. (2012b). ⁽⁵⁾Orosz et al. (2019). ⁽⁶⁾Schwamb et al. (2013). ⁽⁷⁾Kostov et al. (2014). ⁽⁸⁾Welsh et al. (2015). ⁽⁹⁾Kostov et al. (2016). ⁽¹⁰⁾Socia et al. (2020). ⁽¹¹⁾Kostov et al. (2020).

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.