Charles Explorer logo
🇬🇧

Optically Dark Clouds in the Cluster of Galaxies

Publication at Faculty of Mathematics and Physics |
2021

Abstract

21cm surveys of the Virgo cluster of galaxies discovered optically dark clouds with velocity dispersions >100 km/s. This suggests dynamical masses ALMOST EQUAL TO 1010 MSun, while their line brightness masses are ALMOST EQUAL TO 107 MSun.

They are not angularly resolved implying sizes < 17 kpc. We hypothesize that they are dark galaxies, i.e., dark matter halos with not enough baryons to form stars.

We plan to test it by simulations using the code Trixi. We will analyze our VLA observations and compare them to the simulations.