What Happens to Hot Jupiters when their Star Becomes a Red Giant? universetoday storybywill
This image tracks the life of a Sun-like star, from its birth on the left side of the frame to its evolution into a Red Giant star on the right. Credit:As Lau explained to Universe Today via email, the topic of Hot Jupiter engulfment is of interest to astrophysicists because they believe it may explain some of the “odd” stars that have been observed in our galaxy – rapidly rotating and chemically enriched giant stars.
The recent explosion in exoplanet discoveries has allowed for various theories to be tested, including the possibility that when stars expand to become Red Giants, planets that used to orbit at a safe distance will spiral toward the star’s center, stirring up stellar material in the process. Said Lau:Also, any planetary material that comes off during the in-spiral could alter stars’ surface chemical makeup.
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