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Fraser
2017-May-25, 08:30 PM
Tabby's Star is dimming again, and two new studies have been released that offer new and interesting theories on what could be causing it.
The post New Ideas for the Mysterious Tabby’s Star: a Gigantic Planet or a Planet With Rings (https://www.universetoday.com/135719/new-ideas-mysterious-tabbys-star-gigantic-planet-planet-rings/) appeared first on Universe Today (https://www.universetoday.com).


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Ross 54
2017-May-26, 04:36 PM
This new hypothesis is said to call for a planet much larger than Jupiter, about 30 percent the size of KIC 8462852. Isn't it believed that planets don't grow much larger than Jupiter? Their greater mass reputedly compresses then to higher density, due to their own gravity.

Also-- an object as large as this seems to be on the scale of bodies that fuse hydrogen at their cores-- stars. No conspicuous second star has been seen at the distance specified, in the Boyajian's Star system.

profloater
2017-May-26, 05:15 PM
This new hypothesis is said to call for a planet much larger than Jupiter, about 30 percent the size of KIC 8462852. Isn't it believed that planets don't grow much larger than Jupiter? Their greater mass reputedly compresses then to higher density, due to their own gravity.

Also-- an object as large as this seems to be on the scale of bodies that fuse hydrogen at their cores-- stars. No conspicuous second star has been seen at the distance specified, in the Boyajian's Star system. to the inexperienced, a large planet seems the obvious solution.

publiusr
2017-May-26, 08:57 PM
This new hypothesis is said to call for a planet much larger than Jupiter, about 30 percent the size of KIC 8462852. Isn't it believed that planets don't grow much larger than Jupiter? .

Some may be quite fluffy.

http://www.space.com/36923-styrofoam-planet-discovery-will-help-us-find-habitable-planets-and-alien-life.html


Think cloud like end of life hot jupiters...

And end of life hot Jupiter might wind up a different kind of "synestia"--another term all the rage now. Instead of an IO-jupiter interaction--you get a hot-jupiter star structure--but not one made by ETs.

Even lowly water has structure--it seems
http://www.terradaily.com/reports/Water_is_surprisingly_ordered_on_the_nanoscale_999 .html.