Planet HQ Tau Ab

Detailed information about planet HQ Tau Ab and its parameters.

Planet

Name
HQ Tau Ab
Planet Status
Confirmed
Discovered in
2024
Publication
Status
Published in a refereed paper
Update
2024-11-05
Mass
Mass*sin(i)
Semi-Major Axis
0.61 ( +0.13 -0.24 ) AU
Orbital Period
Eccentricity
Angular distance
ω
Tperi
Radius
Inclination
Detection Method
Radial Velocity
Mass Meas. Method
Radial Velocity
Radius Meas. Method
Primary transit
Secondary transit
λ
Impact Parameter b
Time Vr=0
Velocity Semiamplitude K
Calculated temperature
Measured temperature
Hottest point longitude
Geometric albedo
Surface gravity log(g/gH)
Alternate Names
Data Source Type Result Value Result Figure Notes Reference
Molecule Data Source Type Result Value Result Figure Notes Reference

Long et al. (2019) highlight dust depletion towards the inner disc region of HQ Tau, indicating the presence of a dust cavity. Assuming this cavity being produced by a companion, this means that the orbit inclination matches with the disc inclination (i.e. 53.8°), constraining the companion’s mass to about 62 MJup.

No link

Star

Joncour et al. (2017): HQ Tau would form a triple or quadruple system with protostar XEST08-049 and proto-brown dwarf KPNO-Tau 9 located 11,884 and 12,571 AUs away respectively. Given the distances, the latter companion would likely orbit the former about 690 AUs away.
Long et al. (2019): Estimated luminosity for HQ Tau A is 4.34 LSol.
Pouilly et al. (2024): HQ Tau likely forms a binary system with an M dwarf companion star (m = 0.465 Solar masses) in close orbit (P ∼ 767 d).

No link