The 2nd presentation in today’s first #AAS238 presser looks at ways to find planets by looking at the composition of stars.
A Statistical Search for Chemical Signatures of Planet Formation in Sun-like Stars
Jacob Nibauer (University of Pennsylvania)
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A Statistical Search for Chemical Signatures of Planet Formation in Sun-like Stars
Jacob Nibauer (University of Pennsylvania)
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There was a lot of chemistry in this talk, but the bottom line is this: If you have two stars that formed from the same kind of stuff, then the star that forms rocky worlds will have less of the stuff needed to make those planets then a star that didn’t make planets.
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To test this concept, need to cross-match Kepler & TESS exoplanet hosts to identify if they do or don’t show expected depletions, need to consider binaries.
I’m curious if we have enough data to consistently say, here are rocky worlds, & here aren’t rocky worlds?
Will ask.
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I’m curious if we have enough data to consistently say, here are rocky worlds, & here aren’t rocky worlds?
Will ask.
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Got answer: Detections are preferential to short orbit & big planet radii. This isn’t enough… yet. But we can see if a set of “These stars definately have planets” are different from a randomly selected set of stars.
Can also look at depleted vs not depleted in general.
Fini/
Can also look at depleted vs not depleted in general.
Fini/
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