1
$\begingroup$

Do I understand correctly that dark matter fields are interact with baryonic matter only through the gravitational field? In this case, how can it be registred at all if it does not interact with the electromagnetic field in any way? Or is there interaction, only it is very weak?

$\endgroup$
5
  • $\begingroup$ en.wikipedia.org/wiki/Galaxy_rotation_curve $\endgroup$
    – G. Smith
    Commented Dec 30, 2020 at 7:45
  • 1
    $\begingroup$ Does this answer your question? How did we 'discover' dark matter? $\endgroup$ Commented Dec 30, 2020 at 8:01
  • 1
    $\begingroup$ Is it possible for the existence of absolutely non-interacting quantum fields? $\endgroup$ Commented Dec 30, 2020 at 8:03
  • $\begingroup$ That’s an unrelated question. Dark matter interacts gravitationally with ordinary matter. $\endgroup$
    – G. Smith
    Commented Dec 30, 2020 at 8:10
  • 1
    $\begingroup$ The question is related. If the existence of absolutely non-interacting quantum fields is impossible, then dark matter should interact with ordinary matter, albeit very weakly. $\endgroup$ Commented Dec 30, 2020 at 8:21

0