Results 111 to 120 of about 31,576 (269)

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

, 2022
Pei-Bin Chen, Yinghe Zhao, Junfeng Wang
openalex   +1 more source

Clustering, host galaxies, and evolution of AGN

, 2009
We explore the connection between different classes of active galactic nuclei (AGNs) and the evolution of their host galaxies, by deriving host galaxy properties, clustering, and Eddington ratios of AGNs selected in the radio, X-ray, and infrared (IR) wavebands from the wide-field (9 deg^2) Bootes survey.
Hickox, Ryan C., collaboration, the Bootes survey   +1 more
openaire   +2 more sources

Deep Chandra Observations of NGC 5728. III. Probing the High-resolution X-Ray Morphology and Multiphase Interstellar Medium Interactions in the Circumnuclear Region

The Astrophysical Journal
We present a detailed imaging analysis of 260 ks of subarcsecond resolution Chandra (ACIS-S) observations of the nearby Seyfert 2 galaxy NGC 5728. Our study focuses on the bright and diffuse soft X-ray emission within the galaxy's inner ∼1 kpc.
Anna Trindade Falcão, G. Fabbiano, M. Elvis, A. Paggi, W. P. Maksym   +4 more
doaj   +1 more source

Unlocking AGN variability with custom ZTF photometry for high-fidelity light curves and robust selection

Astronomy & Astrophysics
Aims. We explored the potential of optical variability selection methods in order to identify a broad range of active galactic nuclei (AGN), including those challenging to detect with conventional techniques. Using the unprecedented combination of depth,
Arévalo P., Sánchez-Sáez P., Sotomayor B., Lira P., Bauer F. E., Ríos S.   +5 more
doaj   +1 more source

AGN and starburst coexistence in the short GRB100628A host galaxy [PDF]

, 2019
M. Contini
openalex   +1 more source

A New Approach to Constraining Properties of Active Galactic Nucleus Host Galaxies by Combining Image and Spectral Energy Distribution Decomposition: Testing upon the MBH–M⋆ Relation

The Astrophysical Journal
The outshining light from active galactic nuclei (AGNs) poses significant challenges in studying the properties of AGN host galaxies. To address this issue, we propose a novel approach that combines image decomposition and spectral energy distribution ...
Haoran Yu, Lulu Fan, Yunkun Han, Weibin Sun, Yihang Zhang, Xuheng Ding, Yongquan Xue   +6 more
doaj   +1 more source

Revisiting the Properties of X-Ray Active Galactic Nuclei in the SSA22 Protocluster: Normal Supermassive Black Hole and Host-galaxy Growth for AGNs in a z = 3.09 Overdensity [PDF]

, 2023
Erik B. Monson, Keith Doore, Rafael T. Eufrasio, Bret Lehmer, D. M. Alexander, C. M. Harrison, Mariko Kubo, C. Saez, Hideki Umehata   +8 more
openalex   +1 more source

Ongoing Star Formation In AGN Host Galaxy Disks: A View From Core-collapse Supernovae

, 2010
The normalized radial distribution of young stellar populations (and cold gas) in nearby galactic disks is compared between AGN host galaxies and starforming galaxies (both with Hubble types between S0/a and Scd) by using type II supernovae (SNe) as ...
Ammons, Athanassoula, Baldwin, Bartunov, Bournaud, Buta, Cid Fernandes, Ciroi, Croton, Di Matteo, Ferrarese, Gehrels, Gonzalez Delgado, Granato, Hakobyan, Hammer, Ho, Hopkins, Hopkins, Hopkins, Hunt, Hunt, J. S. Deng, J. Wang, J. Y. Wei, Kauffmann, Kauffmann, Kewley, Kewley, Magorrian, Mao, Martini, Petrosian, Petrosian, Prieto, Reichard, Sellwood, Shaw, Silverman, Smirnova, Springel, Tremaine, Tsvetkov, Ueda, Van Den Bergh, Veilleux, Wang, Wang, Wang, Wild, Woosley, Zheng, Zhou   +52 more
core   +1 more source

Modeling Star Formation Histories of Changing-look AGN Host Galaxies with Prospector

The Astrophysical Journal
Changing-look active galactic nuclei (CL-AGNs), are AGNs that appear to transition between Seyfert Type 1 and 2 over periods of months to years. Several mechanisms to trigger these transitions have been proposed, but we have yet to conclusively determine
Margaret E. Verrico, K. Decker French, Katherine A. Suess, Tanay Agrawal, Lauranne Lanz, Yuanze Luo, Pallavi Patil, Kate Rowlands, Margaret Shepherd, Maya Skarbinski   +9 more
doaj   +1 more source

Hubble Space Telescope Observations of Extended [O iii]λ 5007 Emission in Nearby QSO2s: New Constraints on AGN Host Galaxy Interaction [PDF]

, 2018
Travis C. Fischer, S. B. Kraemer, H. R. Schmitt, L. F. Longo Micchi, D. M. Crenshaw, M. Revalski, M. Vestergaard, M. Elvis, C. M. Gaskell, F. Hamann, L. C. Ho, J. Hutchings, R. Mushotzky, H. Netzer, T. Storchi-Bergmann, A. Straughn, T. J. Turner, M. J. Ward   +17 more
openalex   +1 more source