Discovery of WASP-132 System Challenges Hot Jupiter Isolation Theory

Astronomers identify a unique planetary system with a Hot Jupiter, an inner Super-Earth, and an outer giant planet, reshaping theories of planetary migration.

The WASP-132 system features a Hot Jupiter, an inner Super-Earth, and a distant icy giant planet, defying previous assumptions about Hot Jupiter isolation.
The Hot Jupiter orbits its star in 7.1 days, while the Super-Earth completes its orbit in just over 24 hours, and the outer giant planet takes five years.
This discovery suggests a more stable migration process for Hot Jupiters that preserves neighboring planets, challenging established theories of planetary evolution.
The system also includes a potential brown dwarf companion, orbiting at a much greater distance from the star.
Eighteen years of observations, involving instruments like the CORALIE and HARPS spectrographs and the TESS space telescope, enabled precise measurements of the planets' masses, densities, and compositions.