Birth of a quasar

 作者:郁梵诳     |      日期:2019-03-07 08:10:00
By Govert Schilling in Pasadena WHERE quasars come from has been a mystery since they were first discovered 40 years ago—but maybe not for much longer. The AAS heard evidence that puts them at the heart of “starburst” galaxies, which have high concentrations of young massive stars and supernovae. Quasars emit so much light that we can see them from the farthest corners of the Universe. Astronomers have long suspected that they form the cores of distant galaxies,