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‘489 light-years away’: Indian astronomers decode planet formation in a triple-star ballet

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Produced by: Tarun Mishra Designed by: Manoj Kumar

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Introduction to GG Tau A

Indian astronomers have investigated GG Tau A, a rare triple-star system located 489 light-years away. The system serves as a stellar nursery, offering new insights into planet formation in multi-star environments.

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Discovery of a Protoplanetary Disk

GG Tau A features a protoplanetary disk, a structure of gas and dust where planets form. The system, estimated to be 1 to 5 million years old, is relatively young, making it an ideal subject for studying early planetary development.

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Study Led by Odisha’s NISER Team

Researchers from the National Institute of Science Education and Research (NISER) in Odisha used advanced radio telescopes in Chile to analyze the disk. Their observations revealed molecular emissions frozen onto dust particles, critical for understanding planetary origins.

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Planet Formation in Extreme Conditions

The team, led by Liton Majumdar, focused on the disk’s mid-plane, where temperatures range between 12 K and 16 K. These frigid conditions freeze carbon monoxide, enabling gas and dust particles to clump together—key steps in planet formation.

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Significance of a Triple-Star Configuration

While most planets form around single stars or binary systems, GG Tau A’s triple-star environment presents unique challenges and opportunities for research. It offers a rare glimpse into how planets might develop in such complex settings.

Global Implications of the Study

The discovery expands the understanding of diverse planetary systems. GG Tau A’s unique conditions help scientists explore how celestial bodies evolve in multi-star configurations, differing significantly from our solar system.

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Future Research Directions

Continued investigations of GG Tau A aim to uncover more about the mechanisms behind planet formation. The findings contribute to broader knowledge about planetary origins in varied cosmic environments.