An international team of astronomers reports the discovery of a new gas giant.
Transit signal identified in curveillumination of an M dwarf star known as TOI-3235. Its planetary nature was confirmed by subsequent radial velocity measurements and ground-based photometric observations.
"We present the discovery of TOI-3235 b,short-period Jupiter rotating an M-dwarf with an astlar mass close to critical. With it, the stars go from partially to fully convective, ”the researchers write.
The radius of TOI-3235 b is approximately 1.02the radius of Jupiter, and its mass is 0.66 of a gas giant. As a result, the density of the object is 0.78 g/m³. The planet revolves around its host every 2.59 days at a distance of about 0.027 AU. The equilibrium temperature of TOI-3235 b is estimated at 604 Kelvin (330.85 °C).
The parent star, which is supposed toabout 400 Ma, is an M-dwarf of spectral type M4 with a radius of about 0.37 solar and a mass of about 0.39 solar. The effective temperature of the object is 3389 K (3115.850 °C). The distance to the star is estimated at about 236 light years.
The results of the study are published on the preprint site arXiv.
Read more:
The mystery of the red stripes on the satellite of Jupiter is revealed
Found "impossible" planet. She defies modern science
Mysterious hexagonal "honeycombs" in salt deserts found an explanation
On the cover: an artist's representation of a hot Jupiter in a narrow orbit around a star. Image courtesy of ATG Medialab/ESA