Results 141 to 150 of about 31,213 (262)

Automatic Machine Learning Framework to Study Morphological Parameters of AGN Host Galaxies within z < 1.4 in the Hyper Supreme-Cam Wide Survey

The Astrophysical Journal
We present a composite machine learning framework to estimate posterior probability distributions of bulge-to-total light ratio, half-light radius, and flux for active galactic nucleus (AGN) host galaxies within z  
Chuan Tian, C. Megan Urry, Aritra Ghosh, Daisuke Nagai, Tonima T. Ananna, Meredith C. Powell, Connor Auge, Aayush Mishra, David B. Sanders, Nico Cappelluti, Kevin Schawinski   +10 more
doaj   +1 more source

The mass–metallicity and fundamental metallicity relations in non-AGN and AGN-host galaxies

Monthly Notices of the Royal Astronomical Society
ABSTRACT Galaxies’ stellar masses, gas-phase oxygen abundances (metallicity), and star formation rates (SFRs) obey a series of empirical correlations, most notably the mass–metallicity relation (MZR) and fundamental metallicity relation (FZR), which relates oxygen abundance to a combination of stellar mass and SFR.
Song-Lin Li, Kathryn Grasha, Mark R Krumholz, Emily Wisnioski, Ralph S Sutherland, Lisa J Kewley, Yan-Mei Chen, Zefeng Li   +7 more
openaire   +2 more sources

Spatially Offset Active Galactic Nuclei in the Very Large Array Sky Survey: Tracers of Galaxy Mergers and Wandering Massive Black Holes

The Astrophysical Journal
The remnants of galaxy mergers may host multiple off-nuclear massive black holes (MBHs), some of which may wander indefinitely within the host galaxy halos. Tracing the population of offset MBHs is essential for understanding how the distribution of MBHs
R. Scott Barrows, Julia M. Comerford
doaj   +1 more source

The Host Galaxy Fluxes of Active Galaxy Nuclei Are Generally Overestimated by the Flux Variation Gradient Method

Universe
In terms of the variable nature of normal active galaxy nuclei (AGN) and luminous quasars, a so-called flux variation gradient (FVG) method has been widely utilized to estimate the underlying non-variable host galaxy fluxes.
Minxuan Cai, Zhen Wan, Zhenyi Cai, Lulu Fan, Junxian Wang   +4 more
doaj   +1 more source

Cosmic ray feedback in galaxies and galaxy clusters: A pedagogical introduction and a topical review of the acceleration, transport, observables, and dynamical impact of cosmic rays. [PDF]

Astron Astrophys Rev, 2023
Ruszkowski M, Pfrommer C.
europepmc   +1 more source

Host Galaxies of the High-redshift AGNs in the GOODS Fields

, 2005
Masayuki Akiyama
openalex   +1 more source

Evidence for Evolutionary Pathway-dependent Black Hole Scaling Relations

The Astrophysical Journal Letters
Recent observations have identified an abundance of high-redshift active galactic nuclei (AGN) with overmassive supermassive black holes (BHs) compared to the local BH mass−total stellar mass ( M _BH – M _⋆ ) relation for AGN.
Jonathan H. Cohn, Emmanuel Durodola, Quinn O. Casey, Erini Lambrides, Ryan C. Hickox   +4 more
doaj   +1 more source

Extragalactic Science with the Orbiting Astronomical Satellite Investigating Stellar Systems (OASIS) Observatory. [PDF]

Space Sci Rev, 2023
Aalto S, Battersby C, Chin G, Hunt LK, Rigopoulou D, Stark AA, Viti S, Walker CK.   +7 more
europepmc   +1 more source

ALFALFA HI Data Stacking II. HI content of the host galaxies of AGN [PDF]

, 2011
S. Fabello, Guinevere Kauffmann, Barbara Catinella, Riccardo Giovanelli, David Schiminovich, Timothy M. Heckman, Martha P. Haynes   +6 more
openalex   +1 more source

The Unusual AGN Host NGC 1266: Evidence for Shocks in a Molecular Gas Rich S0 Galaxy with a Low Luminosity Nucleus

, 2022
Peibin Chen, Yinghe Zhao, Junfeng Wang
openalex   +1 more source