Results 101 to 110 of about 37,453 (224)

The Unified Model of Active Galactic Nuclei

, 2023
openUno degli oggetti astrofisici che più hanno catturato l’attenzione per le loro peculiari caratteristiche e proprietà fin dagli anni ‘50 sono i cosiddetti Nuclei Galattici Attivi, riconosciuti più generalmente con il loro acronimo inglese, AGN ...
GAZZETTA, MARCO
core  

MACER3D—An Upgrade of MACER2D with Enhanced Subgrid Models and Gas Physics—and Its Application to Simulating AGN Feedback in a Massive Elliptical Galaxy

The Astrophysical Journal
We present Multiscale AGN-regulated Cosmic Ecosystem Resolver in 3D (MACER3D), a new suite of three-dimensional hydrodynamic simulations that study active galactic nuclei (AGN) feedback on galactic scales over gigayears in duration, with major ...
Haoen Zhang, Haojie Xia, Suoqing Ji, Feng Yuan, Minhang Guo, Rui Zhang, Bocheng Zhu, Yihuan Di, Aoyun He, Tingfang Su, Yuxuan Zou   +10 more
doaj   +1 more source

A Multiwavelength Evaluation of AGN in the Post-starburst Phase

The Astrophysical Journal
The quenching of star formation is a crucial phase in galaxy evolution. Although feedback from active galactic nuclei (AGN) has been proposed as a key driver of this transition, the lack of strong AGN in nearby quenching galaxies raises questions about ...
Yuanze Luo, Kate Rowlands, Katherine Alatalo, Lauranne Lanz, Timothy Heckman, Elizaveta Sazonova, Pallavi Patil, Omar Almaini, Vincenzo R. D’Onofrio, K. Decker French, Justin Otter, Andreea O. Petric, Namrata Roy, Maya Skarbinski, Justin S. Spilker, Margaret E. Verrico, Vivienne Wild   +16 more
doaj   +1 more source

A Systematic Study of AGN Feedback in a Disk Galaxy. I. Global Overview

The Astrophysical Journal
This is the first paper in a series using our MACER framework to investigate the evolution of a disk galaxy, which emphasizes the role of active galactic nucleus (AGN) feedback and incorporates cosmological inflows.
Yuxuan Zou, Feng Yuan, Suoqing Ji, Luis C. Ho, Yingjie Peng, Jing Wang, Bocheng Zhu, Tao Wang   +7 more
doaj   +1 more source

Cross-correlation of Luminous Red Galaxies with Machine Learning Selected Active Galactic Nuclei in HSC-SSP: Unobscured AGN Residing in More Massive Halos

The Astrophysical Journal
Active galactic nuclei (AGN) are the signposts of black hole growth, and likely play an important role in galaxy evolution. An outstanding question is whether AGN of different spectral types indicate different evolutionary stages in the coevolution of ...
Rodrigo Córdova Rosado, Andy D. Goulding, Jenny E. Greene, Grayson C. Petter, Ryan C. Hickox, Nickolas Kokron, Michael A. Strauss, Jahmour J. Givans, Yoshiki Toba, Cassandra Starr Henderson   +9 more
doaj   +1 more source

A Census of Active Galactic Nuclei Identified by the Mid-infrared [Ne v] Line at z ≤ 0.025

The Astrophysical Journal
We present a census of local active galactic nuclei (AGN) at a redshift of z ≤ 0.025 selected using the high-ionization [Ne v ] λ 14.32 μ m emission line from the Infrared Database of Extragalactic Observables from Spitzer.
Sarah Yassir, Adlyka Annuar
doaj   +1 more source

Luminosity dependent X-ray AGN clustering ? [PDF]

, 2008
We have analysed the angular clustering of X-ray selected active galactic nuclei (AGN) in different flux-limited sub-samples of the Chandra Deep Field North (CDF-N) and South (CDF-S) surveys.
Manolis Plionis
core  

Simulations of Galactic Outflows Driven by Active Galactic Nuclei and Starbursts

The Astrophysical Journal
Using the hydro code Athena++ , we run a series of large-scale hydrodynamic simulations of galactic outflows on a scale of ∼5 kpc scale over a time period of 5 Myr.
Ryan Tanner, Kimberly A. Weaver, Anna Ogorzałek   +2 more
doaj   +1 more source

The Merging Galaxy Cluster Environment Affects the Morphology of Radio Active Galactic Nuclei

The Astrophysical Journal
It has previously been found that the galaxy cluster environment can affect the fueling and evolution of active galactic nuclei (AGN). This work examines the effect of the merging cluster environment on the properties of radio AGN by comparing the radio ...
Mary Rickel, Emily Moravec, Yjan A. Gordon, Martin J. Hardcastle, Jonathon C. S. Pierce, Lawrence E. Bilton, Ian D. Roberts   +6 more
doaj   +1 more source

Clustering, Bias and the Accretion Mode of X-ray selected AGN [PDF]

, 2012
We present the spatial clustering properties of 1466 X-ray selected AGN compiled from the Chandra CDF-N, CDF-S, eCDF-S, COSMOS and AEGIS fields in the 0.5−8 keV band.
Manolis Plionis
core