Stellar collision may explain why Orion Nebula's planet-forming disks appear younger than its stars
Astronomers suggest that the Orion Nebula's age paradox, where planet-forming disks appear younger than the stars they surround, may be explained by a stellar collision. Simulations indicate that a binary star merger could have increased the central star's luminosity, creating the observed discrepancies in the nebula's evolution.
Why it matters
This research provides a significant breakthrough in understanding star formation and the life cycles of planetary systems.
edited by Lisa Lock , reviewed by Robert Egan
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Add to Preferred Sources Credit: ESA/Hubble The Orion Nebula is a large star-forming region visible to the naked eye. Some of the young stars in the nebula are surrounded by disks of gas and dust in which planets form. Radiation from the massive central star, 1 Ori C1 (Theta-1 Orionis C1), gradually strips material from these disks, giving them shapes that resemble tadpoles.
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