TESS revealed her first brown dwarf

Astronomers investigating transit satellites with NASA exoplanets (TESS) have discovered a brown dwarf that surrounds a young star about 841 light-years from Earth with a transitional mass. The object named TOI-503b is the first brown dwarf discovered by TESS.

Brown dwarfs are cool, blurry objects the size of gas giants like Jupiter or Saturn and stars like the sun. However, they are too small to support the hydrogen fusion reaction in its nucleus.

They usually have a mass between 11-16 Jupiter. Estimated mass at which deuterium synthesis can be maintained) and 75-80 Jupiter (estimated mass to maintain hydrogen synthesis).

The newly discovered TOI-503b brown dwarf is only 1.34 times bigger than Jupiter, but 53.7 times heavier. It orbits its host star TOI-503 once every 3.7 days at a distance of only 0.06 AU in a circular path.

TOI-503, also known as BD + 13 1880, TIC 186812530 and TYC 802-751-1, is a type A star with a mass of 1.8 times the mass of the sun and 1.7 times the radius of the Sun The star has a surface temperature of 7,377 degrees Celsius and only 180 million years old.

We claim that these chocolate dwarfs are formed in situ based on the system’s young age and the length of time they spread around the parent star. Researchers say that TOI-503b combines a growing number of known short-term intermediaries, the mass of orbiting brown dwarf stars in the main sequence, and the second such chocolate dwarf, known as A-HATS-70b. Star happened.

When the population grew under this regime, the driest areas in the brown dwarf desert (35-55 Jupiter masses) were being reforested and the mass spectrum was shrinking.

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