Monday, February 13, 2023

Small planets orbiting low-mass stars detected with the SPIRou instrument and the TESS satellite

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Here's the List of the Top 5 Harshest Planets Found So Far

Our Galaxy is filled with an enormous number of planets and many of them are unlike Earth and have very hostile conditions on their surfaces. Take the case of Venus and Mercury itself. The condition in Venus is so hellish that the temperature there can melt lead.

Mercury which is the closest planet to the sun doesn’t have a proper atmosphere to protect itself from the sun’s radiation and heat, making things difficult there.

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Publisher: The Tech Outlook
Date: 2023-02-13T07:00:02 00:00
Twitter: @thetechoutlook
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Presence Of Liquid Water During The Evolution Of Exomoons Orbiting Ejected Free-floating Planets - ...

Several models predict the possibility, for these isolated planetary-mass objects, to retain exomoons after their ejection.

In order to study the timescales over which liquid water can be maintained, we perform dynamical simulations of the ejection process and infer the resulting statistics of the population of surviving exomoons around free-floating planets.

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Publisher: Astrobiology
Date: 2023-02-13T02:14:26 00:00
Author: Keith Cowing
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Galactic chemical evolution plays a crucial role in planet formation | Department Of Science & ...

Most stars hosting giant planets are younger compared to stars hosting smaller planets, shows a study that traced the abundance of various elements in stars. This result answers long-standing questions regarding timeline of small and giant planet formation.

For a Jupiter-like planet to form, a planetary core of about 10 earth-mass has to be formed first, and that too rapidly, within a few million years. The metal-rich protoplanetary material helps build the cores faster. The heavy core can then accrete the gas to form the giant planet.

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