Webb Telescope reveals how a Jupiter-sized exoplanet survived its star's death and now orbits a white dwarf
Summary
An international team of astronomers used the James Webb Space Telescope to study exoplanet WD 1856 b, a Jupiter-sized planet orbiting a white dwarf star. The planet completes an orbit every 34 hours at a distance of less than 3 million km from the stellar remnant. Webb measured the planet's mass, temperature, and detected its atmosphere, finding it significantly warmer than expected. The research provides insights into how this planet survived its host star's red giant phase—which should have engulfed and destroyed nearby planets—and offers a window into the possible future of Jupiter-like planets after the Sun's death billions of years from now.
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bskyWebb Telescope reveals how a Jupiter-sized exoplanet survived its star's death and now orbits a white dwarfesa.intKey quotes
· 3 pulledThe results are our first window into the future of planets like Jupiter after the death of the Sun, billions of years into the future.
As a red giant, the star should have engulfed and destroyed any nearby planets.
They found that the planet is significantly warmer than expected and determined how it most likely reached its very tight orbit around the star, a white dwarf.
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