The brightness of radio waves from the star known as YZ Ceti that is 12 light years away in the constellation Cetus indicates a similar magnetic field, according to Jackie Villadsen, a professor of physics and astronomy.
She co-authored a paper published Monday in the scientific journal Nature Astronomy with J. Sebastian Pineda, a research astrophysicist at the University of Colorado Boulder, that documents their findings.
The Northern Lights Have Been Detected On An Earth-Sized Planet Just 12 Light-Years Away
The discovery of aurora makes YZ Ceti b—an Earth-sized planet orbiting a red dwarf star about 12 light-years away from Earth in the constellation Cetus—the best candidate yet for a rocky exoplanet with a magnetic field.
An artist's conceptual rendering of interactions between an exoplanet and its star. Plasma emitted ... [+] from the star is deflected by the exoplanet's magnetic field. That interaction perturbs the star's magnetic field and generates auroras on the star and radio waves.
Dark matter planets might exist, and we have ways to find them
As diverse as the cosmos can be, all of these things have one thing in common: they are made of ordinary matter.
Their proposed methods are similar to those already in use for finding ordinary exoplanets. Usually, we find distant planets by measuring the way they influence their parent star.
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