Results 201 to 210 of about 1,084,097 (331)

Mid-infrared Ensemble Variability of Broad-line and Narrow-line Seyfert 1 Galaxies

open access: yesThe Astrophysical Journal
We utilized multiepoch archival data from the Wide-field Infrared Survey Explorer to compare the variability at 3.4 μ m (W1 band) and 4.6 μ m (W2 band) of broad-line Seyfert 1 (BLSy1) galaxies and narrow-line Seyfert 1 (NLSy1) galaxies by employing the ...
Zhipeng Hu, Lisheng Mao
doaj   +1 more source

POWERFUL X-RAY EMISSION OF RADIO GALAXIES [PDF]

open access: green, 1967
Виталий Л. Гинзбург
openalex   +1 more source

Radio Sources in Clusters of Galaxies [PDF]

open access: bronze, 1968
BY Mills   +2 more
openalex   +1 more source

Prevalence of Compact Nuclear Radio Emission in Post-merger Galaxies and Its Origin

open access: yesThe Astrophysical Journal
Post-merger galaxies are unique laboratories to study the triggering and interplay of star formation and active galactic nucleus (AGN) activity. Combining new, high-resolution Jansky Very Large Array (VLA) observations with archival radio surveys, we ...
Gregory Walsh, Sarah Burke-Spolaor
doaj   +1 more source

Extragalactic Magnetism with SOFIA (SALSA Legacy Program). VII. A Tomographic View of Far-infrared and Radio Polarimetric Observations through MHD Simulations of Galaxies

open access: yesThe Astrophysical Journal
The structure of magnetic fields in galaxies remains poorly constrained, despite the importance of magnetism in the evolution of galaxies. Radio synchrotron and far-infrared (FIR) polarization and polarimetric observations are the best methods to measure
Sergio Martin-Alvarez   +19 more
doaj   +1 more source

Part II. Radio Galaxies [PDF]

open access: bronze, 1964
Ko Aizu   +4 more
openalex   +1 more source

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