MolaKule
Staff member
Originally Posted By: d00df00d
..."Dark matter" is basically defined as "whatever is causing the apparent gravitational effects that we don't think observable matter can account for." By that definition, it sure does seem to exist -- not merely as a matter of making the math work, but as a matter of accounting for what we see. Where the mathematical "proof" comes in is defining or speculating about the OTHER features it must have. Those other features are the ones that largely (entirely?) have yet to be demonstrated...
I tend to lean toward the MACHO and RAMBO hypothesis.
The theory of Stellar development says that old stars will die and produce black dwarfs, neutron stars, and black holes, white dwarfs and very faint red dwarfs, and then there are "brown dwarfs" or failed stars that just didn't have enough mass or the right mix of gases to fusion and to "light-up." These objects would constitute "real" dark matter.
All of the above are non-luminous. It is not invisible in the sense of being 'transparent.'
MACHO's or "Massive Compact Halo Objects," and "Robust Association of Massive Baryonic Objects"
https://en.wikipedia.org/wiki/Massive_compact_halo_object
https://en.wikipedia.org/wiki/Robust_associations_of_massive_baryonic_objects
These may be objects such as is defined in 1, and exist in the Halo's of Galaxies.
..."Dark matter" is basically defined as "whatever is causing the apparent gravitational effects that we don't think observable matter can account for." By that definition, it sure does seem to exist -- not merely as a matter of making the math work, but as a matter of accounting for what we see. Where the mathematical "proof" comes in is defining or speculating about the OTHER features it must have. Those other features are the ones that largely (entirely?) have yet to be demonstrated...
I tend to lean toward the MACHO and RAMBO hypothesis.
The theory of Stellar development says that old stars will die and produce black dwarfs, neutron stars, and black holes, white dwarfs and very faint red dwarfs, and then there are "brown dwarfs" or failed stars that just didn't have enough mass or the right mix of gases to fusion and to "light-up." These objects would constitute "real" dark matter.
All of the above are non-luminous. It is not invisible in the sense of being 'transparent.'
MACHO's or "Massive Compact Halo Objects," and "Robust Association of Massive Baryonic Objects"
https://en.wikipedia.org/wiki/Massive_compact_halo_object
https://en.wikipedia.org/wiki/Robust_associations_of_massive_baryonic_objects
These may be objects such as is defined in 1, and exist in the Halo's of Galaxies.
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