Astronomers from around the world have made an exciting discovery – a new exoplanet orbiting a star similar to our sun. This newly found planet, named TOI-1135 b, is young, hot, and comparable in size to Saturn. The details of this discovery were published in a paper on February 27 on the pre-print server arXiv.
Manuel Mallorquín Díaz and a team of astronomers from the University of La Laguna, Spain, have confirmed the existence of another TOI monitored by TESS. They observed a transit signal in the light curve of TOI-1135, a young solar-type star located 371 light years away. Follow-up photometry and spectroscopy confirmed the planetary nature of this signal.
The researchers stated, “This paper introduces the discovery and mass characterization of a close giant gas planet orbiting the young solar-type star TOI-1135.”
TOI-1135 b has a radius of about 0.8 Jupiter radii and a mass of approximately 0.062 Jupiter masses, resulting in a density of 0.16 g/cm3. The planet orbits its host every 8.02 days at a distance of 0.082 AU. The equilibrium temperature of TOI-1135 b is estimated to be around 950–1,200 K.
These findings suggest that TOI-1135 b is an inflated exoplanet, similar in size to Saturn but less massive than the solar system’s largest gaseous giants. The planet’s extended atmosphere is likely due to strong stellar radiation.
2024-03-06 02:41:03
Article from phys.org
