Astronomers from PSU University in Pennsylvania in the United States of America announced the discovery of a large exoplanet the size of “Jupiter”.
NASA’s TESS Institute has surveyed about 200,000 bright stars near the sun, with the aim of searching for transiting exoplanets.
It has identified more than 5,400 candidate exoplanets, according to the Phys Research and Science website.
The astronomers, led by scientist Shiham Kanodia, confirmed that the planet was observed by TESS, identifying the transit signal in the light curve, and confirming the planetary nature of this signal through follow-up observations.
They added that the planet has a radius of about 1.09, which is the radius of Jupiter, while its mass is about 0.268 of the mass of Jupiter, and this results in a density of 0.27 g, making it the least dense planet, and the equilibrium temperature of this planet is estimated at 759 K.
Scientists presented a research paper in an attempt to explain the low density of the discovered planet, assuming that the planet’s low metal is responsible for the delay in the accumulation of gases, as tidal heating causes the planet to swell, due to its strange orbit.
The researchers concluded that the assumptions can be verified, by measuring levels of methane and ammonia, as this study represents a constraint on the internal temperature of the planet, which can provide insight into potential tidal heating.
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