Researchers propose new theory on formation of Jupiter-mass binary objects

Researchers have introduced a new theory on the formation of Jupiter-mass binary objects (JuMBOs), suggesting they originate from stellar cores stripped of mass by radiation from massive stars. This theory was published in The Astrophysical Journal in November. JuMBOs were first identified in 2023 by astronomers using the James Webb Space Telescope in the Orion Nebula. These free-floating binary pairs differ from typical stars and planets, challenging existing models of stellar and planetary formation. The theory focuses on "photo erosion," where radiation compresses remaining material in stellar cores, leading to JuMBOs with masses similar to a few Jupiters. Future observations in radiation-rich regions may help validate this hypothesis.