Results 161 to 170 of about 235,792 (265)

Dissecting the γ-Ray Emissions of the Nearby Galaxies NGC 1068 and NGC 253

open access: yesThe Astrophysical Journal
Intrigued by recent high-energy study results for nearby galaxies with γ -ray emission and in particular NGC 1068 that has been detected as a neutrino-emitting source by the IceCube Neutrino Observatory, we conduct a detailed analysis of the γ -ray data ...
Shunhao Ji   +4 more
doaj   +1 more source

Variable Nature of Magnetically-Driven Ultra-Fast Outflows. [PDF]

open access: yesAstrophys J Lett, 2018
Fukumura K   +5 more
europepmc   +1 more source

AGN STORM 2. VIII. Investigating the Narrow Absorption Lines in Mrk 817 Using HST-COS Observations

open access: yesThe Astrophysical Journal
We observed the Seyfert 1 galaxy Mrk 817 during an intensive multiwavelength reverberation mapping campaign for 16 months. Here, we examine the behavior of narrow UV absorption lines seen in the Hubble Space Telescope/Cosmic Origins Spectrograph spectra,
Maryam Dehghanian   +41 more
doaj   +1 more source

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