Researchers from the Harvard & Smithsonian Center for Astrophysics and the University of Oregon have made a groundbreaking discovery. They have detected repeating radio emissions from Beta Pictoris b, a gas giant exoplanet located approximately 63 light-years away from Earth. This marks the first time such a signal has been identified coming from beyond our solar system. Beta Pictoris b orbits an A-type star, adding to the intrigue of its unique characteristics.
Scientists revealed that the bursts are caused by massive planetary auroras, similar to the Northern and Southern Lights seen on Earth, but on a vast scale. The research details were available online on arXiv, but it has yet to be published in a peer-reviewed journal. This discovery is important and opens an entirely new way for astronomers to study worlds outside our solar system.
Because of the telescope’s high precision, scientists could isolate short, repeating bursts of radio waves coming right from the planet’s position, well clear of its parent star. The exoplanet was discovered in 2008, and NASA previously reported that the mass of Beta Pictoris b is 11.729 times that of Jupiter. It takes 23.6 years to complete one orbit of its star and is 10.018 AU from its star.
“This constitutes the first direct measurement of magnetic field strength for an exoplanet, and is consistent with dynamo-scaling predictions for a young, massive giant planet,” write the researchers.
