Universe Sandbox

General Category => Astronomy & Science => Topic started by: felipe on May 12, 2017, 05:44:49 PM

Title: what hapens wen a star smaller tha a planet like a white dwarf?
Post by: felipe on May 12, 2017, 05:44:49 PM
like if we dont allow roche limit destroy the planet what would happen?

(i think is not what show's in US2)
Title: Re: what hapens wen a star smaller tha a planet like a white dwarf?
Post by: tuto99 on May 26, 2017, 07:56:42 PM
it wouldnt break apart
Title: Re: what hapens wen a star smaller tha a planet like a white dwarf?
Post by: tkulogo on June 01, 2017, 01:26:45 PM
The planet would break apart, but ignoring that for a moment, it would be consumed by the star. Take the example of Jupiter hitting the earth sized white dwarf Sirius B. Jupiter's core would break up and become a thin layer around the dwarf, and it's outer layers would become a slightly less thin layer on top of that. The star would actually get a little smaller, because white dwarves size is controlled by electron degeneracy, and get smaller with more mass. Depending on the heat generated, there might be a nova as the star burns off Jupiter's hydrogen and deuterium.