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New Ultrahot Jupiter Contains Iron in Its Atmosphere

Dragon
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Post by Dragon Thu Sep 30, 2021 8:20 am

Astronomers have discovered a highly-irradiated gas giant exoplanet in close-in, highly misaligned orbit around a bright star called TOI-1518.

Also designated as TIC 427761355 and BD+66 1610, it is almost two times larger and more massive than the Sun.

The newfound planet, TOI-1518b, is an inflated gas giant about 1.9 times the size of Jupiter.

It orbits its parent star once every 1.9 days at a distance of 0.04 AU (astronomical units).

“The new planet falls within the category of ultrahot Jupiters, which have equilibrium temperatures exceeding 2,000 K,” said Yale University astronomer Samuel Cabot and colleagues.

“Many ultrahot Jupiters contain vaporized metals, both neutral and ionized, in their upper atmospheres.”


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Dragon
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Post by Dragon Thu Sep 30, 2021 8:22 am

New Ultrahot Jupiter Contains Iron in Its Atmosphere Image_10113-TOI-1518b
Image credit: Sci-News.com.

An artist’s rendition of the ultrahot Jupiter TOI-1518b and its parent star.


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New Ultrahot Jupiter Contains Iron in Its Atmosphere 334pu7m
Dragon
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Post by Dragon Thu Sep 30, 2021 8:23 am



The Strange Attraction of Hot Jupiters


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New Ultrahot Jupiter Contains Iron in Its Atmosphere 334pu7m
Dragon
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Post by Dragon Thu Sep 30, 2021 8:27 am



A Distant Planet Where It Rains Molten Iron Every Evening


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New Ultrahot Jupiter Contains Iron in Its Atmosphere 334pu7m

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