Mostovi med jatami galaksij

Na koncu 20. stoletja so znanstveniki ugotovili, da je v lokalnem vesolju moč opaziti skoraj polovico manj barionov kot v zgodnjem vesolju. S pomočjo simulacij večjih območij vesolja so dognali, da se je v preteklosti večina barionov nahajala v temperaturnem območju < 10^5 K. V sedanjosti jih je ~ 40% v obliki filamentov toplo-vročega plina s temperaturami 10^5–10^7 K, ogromnih struktur, ki povezujejo jate galaksij. Tak plin je precej redek, zato ga je preko absorpcijskega oziroma emisijskega spektra težko zaznati. Ena redkih možnosti za zaznavo so posebni sistemi, kot so krajši filamenti (mostovi) med dvema bližnjima jatama galaksij.

Bridges between galaxy clusters

At the end of the 20th century scientists discovered, that there is much less (almost 50%) baryonic matter in our Local Universe than in the Early Universe. With the help of simulations of large regions of space, they found out that in the past, most of the baryonic matter was in the < 10^5 K temperature range. At the present, almost 40% of the total baryonic matter is in the form of filaments of warm-hot gas - enormous structures, that connect different galaxy clusters, with temperatures between 10^5–10^7 K. This type of gas is very sparse, so it is almost impossible to detect it in absorption or emission spectrum. One of few posibilities for its detection are special systems, where short filaments connect two nearby galaxy clusters.