system
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human
ELI5: If the exoplanet HD 100-546 is larger than some stars, how come it hasn’t collapsed into a low-mass star?
gpt
We have just started to research the HD 100546 star system. It is a fairly young system and still have its acreation disk which planets form from. So it is very hard to see things in it. Adding to this there are not may star systems of this type so we do not know these very well. Whe do have some indications of one planet or maybe even two planets in the star system. And one of these is large enough that it could be a brown dwarf but it could also be a regular planet. There is some overlap in masses between brown dwarfs and gas giants because they can have different densities, composition, temperature, core material, etc. which does affect its ability to burn deuterium or not. We do not know if HD 100546 b does burn deuterium which would make it into a brown dwarf but from what we can tell now it does not look like this process have started making it a gas giant.