Sentences with phrase «formed at high redshifts»

Not exact matches

However, at high redshifts we require active, continuous accretion to infer the presence of the SMBHs, which often comes in the form of long - term accretion in active galactic nuclei.

That is in part because stars did not form at high rates in the very early universe, before a redshift of about 5, and so they did not explode often as GRBs.

«Some characteristics of Terzan 5 resemble those detected in the giant clumps we see in star - forming galaxies at high - redshift, suggesting that similar assembling processes occurred in the local and in the distant Universe at the epoch of galaxy formation,» Ferraro said.