Results 101 to 110 of about 31,213 (262)

Multiwavelength perspective of AGN evolution

, 2010
Discovering and studying obscured AGN at z>1-3 is important not only to complete the AGN census, but also because they can pinpoint galaxies where nuclear accretion and star-formation are coeval, and mark the onset of AGN feedback.
Fiore, Fabrizio
core   +1 more source

PEARLS: Discovery of Point-source Features within Galaxies in the North Ecliptic Pole Time Domain Field

The Astrophysical Journal
The first public 0.9–4.4 μ m NIRCam images of the North Ecliptic Pole Time Domain Field uncovered galaxies displaying point-source features in their cores as seen in the longer-wavelength filters. We visually identified a sample of 66 galaxies (∼1 galaxy
Rafael Ortiz III, Rogier A. Windhorst, Seth H. Cohen, Steven P. Willner, Rolf A. Jansen, Timothy Carleton, Patrick S. Kamieneski, Michael J. Rutkowski, Brent M. Smith, Jake Summers, Cheng Cheng, Dan Coe, Christopher J. Conselice, Jose M. Diego, Simon P. Driver, Jordan C. J. D’Silva, Brenda L. Frye, Hansung B. Gim, Norman A. Grogin, Heidi B. Hammel, Nimish P. Hathi, Benne W. Holwerda, Minhee Hyun, Myungshin Im, William C. Keel, Anton M. Koekemoer, Juno Li, Madeline A. Marshall, Tyler J. McCabe, Noah J. McLeod, Stefanie N. Milam, Rosalia O’Brien, Nor Pirzkal, Aaron S. G. Robotham, Russell E. Ryan Jr., Christopher N. A. Willmer, Haojing Yan, Min S. Yun, Adi Zitrin   +38 more
doaj   +1 more source

Waking the monster: The onset of AGN feedback in galaxy clusters hosting young central radio galaxies [PDF]

, 2023
Francesco Ubertosi, M. Gitti, F. Brighenti, V. Olivares, Ewan O’Sullivan, Gerrit Schellenberger   +5 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

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

Dust-Enshrouded AGN can Dominate Host-Galaxy-Scale Cold-Dust Emission [PDF]

, 2021
Jed McKinney, Christopher C. Hayward, Lee J. Rosenthal, Juan Rafael Martínez-Galarza, Alexandra Pope, Anna Sajina, H. A. Smith   +6 more
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

A Novel Method to Identify AGNs Based on Emission Line Excess and the Nature of Low-luminosity AGNs in the Sloan Digital Sky Survey: II - Nature of Low-luminosity AGNs

, 2012
We develop a novel method to identify active galactic nuclei (AGNs) and study the nature of low-luminosity AGNs in the Sloan Digital Sky Survey. This is the second part of a series of papers and we study the correlations between the AGN activities and ...
Tanaka, Masayuki
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

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