Results 171 to 180 of about 17,110 (224)

A dormant overmassive black hole in the early Universe. [PDF]

open access: yesNature
Juodžbalis I   +27 more
europepmc   +1 more source

Solving the cooling flow problem with combined jet-wind AGN feedback. [PDF]

open access: yesSci Adv
He A   +8 more
europepmc   +1 more source

Strongly lensed supernovae: lessons learned. [PDF]

open access: yesPhilos Trans A Math Phys Eng Sci
Goobar A   +2 more
europepmc   +1 more source

Overview of the ESCAPE Dark Matter Test Science Project for astronomers. [PDF]

open access: yesOpen Res Eur
Pearson J   +3 more
europepmc   +1 more source

Little red dots as young supermassive black holes in dense ionized cocoons. [PDF]

open access: yesNature
Rusakov V   +16 more
europepmc   +1 more source

Quasars

Applied Optics, 1966
A short historical outline of the discovery and a description of observed properties of quasars introduces questions as to their nature. Some of the principal arguments concerning their reality, distance, intrinsic properties and age lead to the conclusion that, while there is room for other points of view; a strong case can be made for the ...
openaire   +2 more sources

Home - About - Disclaimer - Privacy