US Edition
Clingy Planets Can Trigger Their Own Doom, Cheops and TESS Suggest
- Scientists reported on July 2 that the exoplanet HIP 67522 b orbits its host star every seven days while triggering energetic flares.
- Astronomers investigated this because HIP 67522 b is the youngest known planet orbiting so closely, theorized to affect stellar magnetic fields.
- Using ESA's Cheops and NASA's TESS, the team observed 15 flares linked to the planet's transit, showing the star's magnetic field disturbance.
- The flares are about 100 times stronger than expected, eroding the planet's wispy, Jupiter-sized atmosphere and causing it to shrink yearly.
- This discovery implies HIP 67522 b may shrink to Neptune size in 100 million years, opening new research paths on star-planet dynamics.
18 Articles
18 Articles
Some exoplanets orbit very close to their star, is the case of HIP 67522 b, which is so close that it exerts magnetic influence on its host, which may imply the disappearance of the planet itself. Astronomers of the CHEOPS mission, a space project of the European Space Agency (ESA), have detected that the exoplanet appears to trigger flares of radiation from its star, which, in turn, are destroying the faint atmosphere of the planet and causing …
A Jupiter-size planet as delicate as cotton candy provokes its star
A gas giant planet in distant space has kicked the cosmic hornet's nest: After the world's relentless taunting, its fiery star is after revenge, and the planet will suffer the consequences, astronomers say. Exoplanet HIP 67522 b, fluffed up to the size of Jupiter, circles so close to its star that it’s triggering violent flares — bursts of high-energy radiation — from its host that then blast it in the face. Those flares strip away the planet’s …
Live Science
MSN'A completely new phenomenon': Astronomers spot a planet causing its star to constantly explode
Astronomers have spotted an alien planet orbiting so closely to its home star, the planet's magnetic field is triggering massive solar flares to erupt. This is the first time a planet has been seen influencing its host star.
Clingy planets can trigger their own doom, Cheops and TESS suggest
Astronomers using the European Space Agency's Cheops mission have caught an exoplanet that seems to be triggering flares of radiation from the star it orbits. These tremendous explosions are blasting away the planet's wispy atmosphere, causing it to shrink every year.
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