quasars:相关论文
Abstract The issue of destroying small polycyclic aromatic hydrocarbon (PAH) par- ticles by radiation from AGNs is examine......
Discovery of six high-redshift quasars with the Lijiang 2.4 m telescope and the Multiple Mirror Tele
Quasars with redshifts greater than 4 are rare, and can be used to probe the structure and evolution of the early univer......