subgalactic

English

Etymology

sub- +‎ galactic

Adjective

subgalactic (not comparable)

1. Less than the size of a galaxy
   • 2016, Tobias Binder, Laura Covi, Ayuki Kamada, Hitoshi Murayama, Tomo Takahashi, Naoki Yoshida, “Matter Power Spectrum in Hidden Neutrino Interacting Dark Matter Models: A Closer Look at the Collision term”, in arXiv‎^[1]:

     We consider DM interacting with light hidden fermions via well motivated fundamental operators showing the resultant matter power spectrum is suppressed on subgalactic scales within a plausible parameter region.