Results 151 to 160 of about 53,302 (262)

Another Piece to the Puzzle: Radio Detection of a JWST-detected Active Galactic Nucleus Candidate

open access: yesThe Astrophysical Journal
Radio observations can provide crucial insight into the nature of a new abundant and mysterious population of dust-reddened active galactic nuclei (AGN) candidates discovered by the James Webb Space Telescope (JWST), including “Little Red Dots.” In this ...
Anniek J. Gloudemans   +7 more
doaj   +1 more source

Test for Echo: X-Ray Reflection Variability in the Seyfert-2 Active Galactic Nucleus NGC 4388

open access: yesThe Astrophysical Journal
We report on a study of the narrow Fe K α line and reflection spectrum in the well-known Seyfert-2 active galactic nucleus (AGN), NGC 4388. X-ray spectra summed from two extensive NICER monitoring campaigns, separated by years, show strong evidence of ...
Ben Gediman   +6 more
doaj   +1 more source

Gamma-ray emission from early-type stars interacting with AGN jets

open access: yesEPJ Web of Conferences, 2013
We study the interaction of early-type stars with the jets of active galactic nuclei. A bow-shock will form as a consequence of the interaction of the jet with the winds of stars and particles can be accelerated up to relativistic energies in these ...
Araudo Anabella T.   +2 more
doaj   +1 more source

Polarized thermal emission from dust in a galaxy at redshift 2.6. [PDF]

open access: yesNature, 2023
Geach JE   +7 more
europepmc   +1 more source

Stacking X-Ray Observations of “Little Red Dots”: Implications for Their Active Galactic Nucleus Properties

open access: yesThe Astrophysical Journal Letters
Recent James Webb Space Telescope observations have revealed a population of compact extragalactic objects at z ≳ 4 with red near-infrared colors, which have been dubbed as “Little Red Dots” (LRDs).
Minghao Yue   +5 more
doaj   +1 more source

Multiple Emission Regions in Jets of the Low-Luminosity Active Galactic Nucleus in NGC 4278

open access: yesThe Astrophysical Journal
The Large High Altitude Air Shower Observatory (LHAASO) has detected very-high-energy gamma rays from the low-ionization nuclear emission-line region galaxy NGC 4278, which has a low-luminosity active galactic nucleus (LLAGN) and symmetric, mildly ...
Samik Dutta, Nayantara Gupta
doaj   +1 more source

Constraints on active galactic nucleus accretion disc viscosity derived from continuum variability [PDF]

open access: bronze, 2003
R. L. C. Starling   +3 more
openalex   +1 more source

ABSTRACTS

open access: yes
Precision Radiation Oncology, EarlyView.
wiley   +1 more source

Home - About - Disclaimer - Privacy