
Active galactic nucleus - Wikipedia
An active galactic nucleus (AGN) is a compact region at the center of a galaxy that emits a significant amount of energy across the electromagnetic spectrum, with characteristics …
Active Galactic Nuclei - NASA
Further AGN Resources and References; Introduction to AGN; Imagine the Universe! - Active Galaxies and Quasars
Active Galactic Nuclei - NASA
2001年6月26日 · Active Galactic Nuclei (AGN) are the most distant and luminous objects in the known universe. As such, they represent a unique laboratory for the study of matter in extreme …
Galaxies and the Universe - Active Galactic Nuclei - University of …
Active galactic nuclei (AGN) may be defined loosely as the central regions of galaxies which show substantial energy release beyond what can be attributed to normal processes from stars, …
The Big Multi-AGN Catalog - thatastroguy.github.io
Designed to bring uniformity and structure to the field, this catalog (colloquially referred to as 'The Big MAC') encompasses all confirmed and candidate dual AGN (separations ~110 kpc to ~30 …
Fermi Gamma-ray Space Telescope: Exploring the Extreme Universe
2016年2月17日 · Active Galactic Nuclei (AGN) are galaxies with extremely bright centers, powered by accretion onto supermassive black holes (SMBH). Some of these black holes …
An introduction to active galactic nuclei: Classification and ...
2008年8月1日 · Lower luminosity AGN are sometimes referred to as Type 3 AGN, while those showing rapidly variability at optical wavelengths are sometimes labelled Type 0 AGN. The …
Labeled diagram depicting the structure of an AGN
Download scientific diagram | Labeled diagram depicting the structure of an AGN from publication: Neutrino Whispers: Exploring Neutrinos from Tidal Disruption Events | This is a scientific...
Scheme of the unified model of an AGN. The labeled parts are the ...
The labeled parts are the supermassive black hole (BH), the accretion disk (AD), the narrow line region (NLR), the Broad Line Region (BLR), the obscuring torus, and the covering angle …
Dual WISE AGNs with pair probabilities p - ResearchGate
For each pair, the adopted redshift (z; labeled) corresponds to the maximum value of the pair probability distribution. The examples shown represent the pair with the median projected …