Results 191 to 200 of about 20,094 (246)

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

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

X-Rays from the Highly Polarized Broad Absorption Line QSO CSO 755 [PDF]

open access: bronze, 1999
W. N. Brandt   +5 more
openalex   +1 more source

Confirmation of the highest redshift QSO candidates from the Tololo deep survey [PDF]

open access: bronze, 1977
M. G. Smith   +3 more
openalex   +1 more source

Ultraviolet astronomical spectrograph calibration with laser frequency combs from nanophotonic lithium niobate waveguides. [PDF]

open access: yesNat Commun
Ludwig M   +23 more
europepmc   +1 more source

On networks of space-based gravitational-wave detectors. [PDF]

open access: yesFundam Res
Cai RG   +9 more
europepmc   +1 more source

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