Scientists find a ‘failed star’ unable to maintain nuclear fusion in its core yet boosted to temperatures 3,600°F (2,000°C) hotter than the sun due to its nearness to another star.
Failed Star Overtaking the Sun’s Heat Due to Stellar Partner Proximity
Positioned roughly 1,400 light-years away from Earth, the failed star, alternatively termed a brown dwarf, encircles a celestial body known as a white dwarf. White dwarfs represent the cooled remains of star-like entities that, although not fully unsuccessful in maintaining their inherent nuclear fusion, ultimately depleted their fuel reserves. A recently published study in Nature Astronomy introduces an extraordinary system featuring a brown dwarf or failed star with a temperature of about 14,000°F (7,700°C), surpassing the Sun’s heat of 10,000°F (5,500°C).
Brown dwarfs (failed star), captivating celestial inhabitants, couldn’t accumulate enough material for core fusion and star status during their formation, yet they’re too large to be termed planets. An exceptionally hot brown dwarf in the recent study, roughly 75 to 88 times Jupiter’s mass, exemplifies this distinction.
Find out more about the Failed Star
The intense heat of the brown dwarf doesn’t come from its own nuclear reactions; rather, it’s positioned very near its companion, a white dwarf called WD 0032-317, which emits strong radiation onto it. The side of the brown dwarf that faces away from the white dwarf, known as the nightside, is notably cooler by around 11,000°F (6,000°C).
Even though this lifeless star is no longer actively undergoing nuclear fusion, its surface is remarkably hot, measuring around 66,000°F (37,000°C). Because of its close proximity to the white dwarf, the brown dwarf or failed star, absorbs a significant amount of the leftover radiation from the white dwarf. This causes the side facing the white dwarf to become extremely hot, similar to the temperature of molten lava, while the opposite side remains considerably cooler, reaching a maximum of 4,900°F (2,700°C).