For example , it has been found that the stellar mass of BCG 's was assembled much earlier than the merging model predicts .
The merging model is now generally accepted as the most likely one , but recent observations are at odds with some of its predictions .
It has been found that the stellar mass of BCG 's was assembled much earlier than the merging model predicts .
The merging model is now generally accepted as the most likely one , but recent observations are at odds with some of its predictions .