MOMENTS BEFORE GRAVITATIONAL COLLAPSE. “After reaching the atomic-cooling threshold, the gas begins to cool rapidly and (dynamical) heating mechanisms are suppressed. Above a temperature of approximately 8,000 K, radiative cooling of neutral hydrogen sets an upper limit for the temperature of the halo inside the virial radius, inducing a rapid increase in density and ultimately gravitational collapse.”
https://www.nature.com/articles/s41586-019-0873-4
linkedin post 2022-06-29 05:12:48
Nigel Fleming
September 21, 2022