Mapping the energetic connection between radio and X-ray emission in Milky Way stars

Star system: HD 124831 | Distance from the Sun: 329 light years

A new study exploring the heart of our Galaxy has identified 137 stars that shine in both radio waves and X-rays, providing a clearer picture of stellar magnetic activity. By combining data from the MeerKAT radio telescope and the eROSITA X-ray satellite, researchers tested the famous Güdel-Benz relation, which usually links a star's heat-driven X-rays to its high-energy radio flares. 

The findings reveal that many stars in the Galactic plane are actually 'noisier' in radio frequencies than previously thought, suggesting the old scientific rules might be more of an upper limit than a strict law. This research helps us better understand the powerful magnetic environments of different types of stars, including those similar to our Sun and even larger, hotter varieties. 

Scientific study

X-ray counterparts to stellar MeerKAT Galactic-plane compact radio sources (external link)