Posted on 02/17/2021 8:58:20 PM PST by BenLurkin
This surprising orbital architecture was caused by the protoplanetary disk in which the two planets formed being tilted by the second star in this system.
"In any planetary system, the planets are thought to form in a spinning, circular disk of material that swirls around a young star for a few million years after the star itself is born, the so-called protoplanetary disk. Usually, the disk and the star are spinning the same way. However, if there is a neighboring star (where 'neighboring' in astronomy means within a light-year or so), the gravitational force from the neighboring star might tilt the disk."
The underlying physics is connected to the behavior a spinning top displays, when its rotation slows down and the axis itself starts to rotate in a cone."
The scenario was first theorized in 2012, and now this research team has found the first system in which this process has played out. Teruyuki Hirano of the Tokyo Institute of Technology says, "After we discovered the K2-290 system, we realized this system is ideally suited to test this theory, as it is not only orbited by two planets but also contains two stars. So logically, the next step would be to study the system in finer detail, and indeed we have hit the jackpot."
One implication of the discovery is that astronomers can no longer assume that the initial conditions of planet formation exhibit alignment between stellar rotation and planetary orbits. Importantly, while other theories that aim at explaining misalignments in exoplanet systems tend to work best on large, Jupiter-like planets in short period orbits, the disk-tilting mechanism applies to planets of any size. There may be another Earth-like world, for example, that travels over the north and south poles of its home star.
(Excerpt) Read more at phys.org ...
all the other stars made fun of Kevin cuz he was always spinnin backerds
More Fake Astro Physics.
Why don’t they ever show you this star with planets?
Simple, no one has ever seen a planet in any other solar system. When we look at a star all we ever see is a Dot.
Starlight even has chemical information in it as well because of the ways atoms emit light when hot.
Backwards spinning star- for a minute I thought you were talking about Robert DeNiro.
No that's a downward spiral. Similar but different.
I hate it when that happens.
As I see it, the problem is actually point of view.
The stat and the disk are both spinning in the same direction but the star is upside down and merely appears to be rotating differently
How can a sphere be upside down?
L
WTFCS!
This topic was posted , thanks for posting it, thanks for reading it. I'm enjoying my end of the year check for missed topics.
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