An Exoplanet Found Protected by a Magnetosphere - Universe Today universetoday storybywill
The “invisible” world Kepler-19c, a possible “mini-Neptune,” is seen in the foreground of this artist’s conception. Credit: David A. Aguilar data, the team observed HAT-P-11b, a Neptune-sized exoplanet that orbits a K-type star located 123 light-years from Earth. This is what is known as the Transit Method , where periodic dips in a star’s brightness indicate the passage of stars in front of its face .
Illustration of Hubble’s observations of HAT-P-11b and the extended region of charged carbon particles that surround it and form a long tail. Credit: Lotfi Ben-Jaffel/Institute of Astrophysics, Paris While a mini-Neptune like HAT-P-11b is not a good candidate for habitability, the first unambiguous detection of a magnetosphere is a significant step toward an improved understanding of exoplanet habitability. To date, many studies of potentially-habitable exoplanets have been limited because astronomers are not yet able to constrain the magnetic properties of exoplanets.
The connection between magnetic fields and habitability is not yet fully understood and requires further investigation. Luckily, this study and the methods employed show that magnetospheres can be detected around various exoplanets to assess their role in potential habitability.
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