Mar 5, 2015 · At high enough metallicity, hydrogen atoms are separated mostly from each other by metal atoms, stopping fusion and causing collapse until fusion occurs OR degeneracy pressure …

Dec 12, 2024 · I am trying to make a red dwarf with twice the metallicity of the Sun. What could its theoretical minimum mass be in Jupiter masses?

Feb 17, 2020 · In astronomy, metallicity is a measure of how much of an object is made of elements besides hydrogen and helium.

A star produces energy through nuclear fusion with the 2H and 3H isotopes to create 4He for example. I read that there is a mass loss of 0.018884 (in atomic mass units). Of course this mass loss is

Aug 26, 2023 · My understanding is that the stars are primarily made up of hydrogen and helium. Why do those elements end up in stars and other heavier elements make up the planets?

Dec 20, 2013 · A metallicity increase for example, would imply a smaller radius for equal mass. Wouldn't a Sun-like star of higher/lower metallicity rotate faster/slower, which would speed up/ slow down its …

Oct 25, 2020 · The main sequence evolution of a solitary star depends most of all on its initial mass. Other factors influencing its evolution are the initial metallicity, rotation and magnetism. Question: …

Dec 27, 2019 · At solar metallicity, only stars with masses below 0.35 are fully convective. Stars with will have radiative cores on the main sequence. There is a standard reference that deals with the low …

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Jul 29, 2020 · As the solar system formed, why didn't all of the heavier elements such as iron, collect where the sun is leaving the lighter elements in the outer solar system?