A direct empirical proof of the existence of dark matter · HackerPapers discussions

A direct empirical proof of the existence of dark matter — HN submission

Thu, 11 Aug 2022 03:56:15 GMT

A direct empirical proof of the existence of dark matter

4 points; 1 discussion reply on HN. Paper and source history. A submission is not an endorsement.

A direct empirical proof of the existence of dark matter — mentioned by AprilArcus

Sat, 22 Aug 2020 02:01:44 GMT

No, it doesn't help. Brown dwarfs as dark matter was a somewhat mainstream theory in the late 90s under the name MACHOs ("MAssive Compact Halo Objects"), but a seminal 2006 study of colliding galaxy dynamics in the "Bullet Cluster" definitively ruled out that possibility: https://arxiv.org/abs/astro-ph/0608407 The distribution of mass in this cluster shows that dark matter does not obey the same physical laws as baryonic matter. Baryonic matter (including interstellar dust, planets, brown dwarfs and stars) self-interacts through electrostatic friction, transforming kinetic energy into heat.…

Paper and discussion history. A mention is not an endorsement.

A direct empirical proof of the existence of dark matter — mentioned by joshvm

Mon, 01 Apr 2019 00:42:31 GMT

It's referred to as plasma in the primary literature: https://arxiv.org/abs/astro-ph/0608407 Many people use hot/ionised gas and plasma interchangeably though. For example: https://academic.oup.com/mnras/article/389/2/967/974617

Paper and discussion history. A mention is not an endorsement.