3 ms·
the "missing matter" is not just at the galactic core but assumed distributed more thorough the galaxy. if it just were at the center, star rotational speed wou
by LoSboccacc 9y ago
the "missing matter" is not just at the galactic core but assumed distributed more thorough the galaxy. if it just were at the center, star rotational speed would follow keplerian predictions, instead they observed the same rotational speed across whole galaxy disks.
https://en.wikipedia.org/wiki/Galaxy_rotation_curve https://en.wikipedia.org/wiki/Galaxy_rotation_curve
- metaobject 9y agoDark matter is also believed to be what holds galaxies (and galactic clusters) together by enveloping them in what are called dark matter halos. https://en.m.wikipedia.org/wiki/Dark_matter_halo https://en.m.wikipedia.org/wiki/Dark_matter_halo
- rmcpherson 9y agoBaryonic matter accelerating into black holes also emits electromagnetic radiation vs. dark matter which does not interact electromagnetically by definition (and observation).