Misplaced Pages

MASCARA-1b

Article snapshot taken from Wikipedia with creative commons attribution-sharealike license. Give it a read and then ask your questions in the chat. We can research this topic together.
Exoplanet in Equuleus
MASCARA-1b
Discovery
Discovered byMASCARA
Discovery date17 July 2017
Orbital characteristics
Semi-major axis0.040352 AU
Orbital period (sidereal)2.1 d
StarMASCARA-1
Physical characteristics
Mean radius1.597 RJ
Mass3.7 MJ
Temperature3062 K

MASCARA-1b is a confirmed superjovian exoplanet, orbiting the A-type star MASCARA-1 (HD 201585).

Characteristics

MASCARA-1b is a hot Jupiter transiting its parent A-type star; its orbit is misaligned with the star's rotation. The planet was found unusually reflective for hot Jupiter with the measured geometric albedo of 0.171
−0.068 and dayside temperature of 3062
−68 K. Attempts to spectroscopically characterize its composition were failing as in 2022 due to relatively high planetary surface gravity resulting in compact atmosphere.

References

  1. Spi-OPS:Spitzer and CHEOPS confirm the near-polar orbit of MASCARA-1b and reveal a hint of dayside reflection, 2021, arXiv:2109.05031
  2. Transmission spectroscopy of MASCARA-1b with ESPRESSO:Challenges of overlapping orbital and Doppler tracks, 2022, arXiv:2206.09443
Categories: