Results 261 to 270 of about 289,816 (297)

Wide‐FieldChandraX‐Ray Observations of Active Galactic Nuclei in Abell 85 and Abell 754 [PDF]

open access: green, 2008
G. R. Sivakoff   +4 more
openalex   +1 more source

A broad-band spectral analysis of eight radio-loud type 1 active galactic nuclei selected in the hard X-ray band [PDF]

open access: hybrid, 2008
M. Molina   +8 more
openalex   +1 more source

A decade of sub-arcsecond imaging with the International LOFAR Telescope. [PDF]

open access: yesAstrophys Space Sci
Morabito LK   +9 more
europepmc   +1 more source

Cosmic mysteries and the hydrogen 21-cm line: bridging the gap with lunar observations. [PDF]

open access: yesPhilos Trans A Math Phys Eng Sci
Fialkov A, Gessey-Jones T, Dhandha J.
europepmc   +1 more source

Measuring the Cosmic X-ray Background accurately

open access: yes, 2022
Li H, Walter R, Produit N, Hubert F.
europepmc   +1 more source

Synchrotron intensity gradient revealing magnetic fields in galaxy clusters. [PDF]

open access: yesNat Commun
Hu Y   +5 more
europepmc   +1 more source

Micromegas with GEM preamplification for enhanced energy threshold in low-background gaseous time projection chambers. [PDF]

open access: yesOpen Res Eur
Castel Pablo JF   +15 more
europepmc   +1 more source

A long-duration gamma-ray burst of dynamical origin from the nucleus of an ancient galaxy

open access: yes, 2022
Levan A   +29 more
europepmc   +1 more source

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