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Related papers: AGN--Host Galaxy Image Decomposition with JWST

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We investigate the link between optical obscuration and X-ray absorption in active galactic nuclei (AGN) by combining X-ray spectroscopy from 4XMM-DR11 with SDSS DR16Q spectroscopy. Bayesian X-ray spectral fits were obtained within the…

Astrophysics of Galaxies · Physics 2026-04-22 G. Mountrichas , F. J. Carrera , E. Quintin , A. Viitanen , A. Corral , N. Webb

We investigate the effect of environment on the presence and fuelling of Active Galactic Nuclei (AGN) by identifying galaxies hosting AGN in massive galaxy clusters and the fields around them. We have identified AGN candidates via optical…

Astrophysics of Galaxies · Physics 2014-07-29 Alison J. Klesman , Vicki L. Sarajedini

We investigate active galactic nuclei (AGN) candidates within the FourStar Galaxy Evolution Survey (ZFOURGE) to determine the impact they have on star-formation in their host galaxies. We first identify a population of radio, X-ray, and…

The optical structure of several AGN has been studied using the Fine Guidance Sensors (FGS) on the Hubble Space Telescope (HST). The FGSs are interferometric devices which can resolve structure on scales of 20 milliarcsecs or less and hence…

Astrophysics · Physics 2007-05-23 Richard N. Hook , Ethan J. Schreier , George Miley

We present morphological classifications for the hosts of 1189 hard X-ray selected (14-195 keV) active galactic nuclei (AGNs) from the Swift-BAT 105-month catalog as part of the BAT AGN Spectroscopic Survey (BASS). BASS provides a powerful…

The star-formation rates and the stellar masses of the host galaxies of AGNs at high-redshifts are keys to understanding the evolution of the relation between the mass of the spheroidal component of a galaxy and the mass of its central…

Astrophysics · Physics 2009-11-11 Masayuki Akiyama

We study the morphologies and structures of 57 dwarf galaxies that are representative of the general population of dwarf galaxies, and compare their demographics to a sample of dwarf galaxies hosting optically-selected AGNs. The two samples…

Astrophysics of Galaxies · Physics 2023-09-22 Seth J. Kimbrell , Amy E. Reines , Jenny E. Greene , Marla Geha

We study the properties of 56 massive (M$_{\rm{\star}}$ > 10$^{10}$ M$_{\odot}$) galaxies at $z<1$ that host AGN, detected via their broadband optical variability in the VST-COSMOS survey. VST-COSMOS provides a nearly-identical single visit…

Astrophysics of Galaxies · Physics 2026-02-18 B. Bichang'a , D. De Cicco , S. Kaviraj , I. Lazar , A. Watkins , G. Martin , D. Kakkad

We perform spectral energy distribution (SED) fitting to 711 luminous X-ray AGN at 0.7 < z < 4.5 using 10-bands of optical and infra-red photometric data for objects within XMM-SERVS. This fitting provided 510 reliable (reduced $\chi ^2 <…

Astrophysics of Galaxies · Physics 2022-07-27 Adam Marshall , Matthew W. Auger-Williams , Manda Banerji , Roberto Maiolino , Rebecca Bowler

As the third paper of our serial studies that are aim at examining the AGN-host coevolution by using partially obscured AGNs, we extend the broad-line composite galaxies (composite AGNs) into ROSAT-selected Seyfert 1.8/1.9 galaxies basing…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-19 J. Wang , J. Y. Wei

We present an algorithm to derive difference images for data taken with the JWST with matched point-spread functions (PSFs). It is based on the saccadic fast Fourier transform (SFFT) method but with revisions to accommodate the rotations…

Instrumentation and Methods for Astrophysics · Physics 2024-04-30 Lei Hu , Lifan Wang

The fuelling of active galactic nuclei (AGN) - via material propagated through the galactic disc or via minor mergers - is expected to leave an imprint on the alignment of the sub-pc disc relative to the host galaxy's stellar disc.…

Astrophysics of Galaxies · Physics 2016-02-17 Matthew J. Middleton , Michael L. Parker , Christopher S. Reynolds , Andrew C. Fabian , Anne M. Lohfink

The James Webb Space Telescope (JWST) is revolutionizing our understanding of black holes formation and growth in the early Universe. However, JWST has also revealed that some of the classical diagnostics, such as the BPT diagrams and X-ray…

Astrophysics of Galaxies · Physics 2024-11-27 G. Mazzolari , H. Übler , R. Maiolino , X. Ji , K. Nakajima , A. Feltre , J. Scholtz , F. D'Eugenio , M. Curti , M. Mignoli , A. Marconi

We combine multiwavelength data in the AEGIS-XD and C-COSMOS surveys to measure the typical dark matter halo mass of X-ray selected AGN [Lx(2-10keV)>1e42 erg/s] in comparison with far-infrared selected star-forming galaxies detected in the…

We assess the effects of simulated active galactic nuclei (AGNs) on the colour and morphology measurements of their host galaxies. To test the morphology measurements, we select a sample of galaxies not known to host AGNs and add a series…

The feedback from an active galactic nucleus (AGN) is frequently invoked as a mechanism through which gas can be heated or removed from a galaxy. However, gas fraction measurements in AGN hosts have yielded mixed support for this scenario.…

Astrophysics of Galaxies · Physics 2018-12-12 Sara L. Ellison , Toby Brown , Barbara Catinella , Luca Cortese

Most baryonic matter in the universe exists in gaseous form and can be found in structures such as galactic halos and the low-density intergalactic medium. proposed-ray spectroscopy missions such as Athena, Arcus, and Lynx will have the…

Astrophysics of Galaxies · Physics 2022-08-31 Maggie C. Huber , Joel N. Bregman

We present our sixth work in a series dedicated to variability studies of active galactic nuclei (AGN) based on the survey of the COSMOS field by the VLT Survey Telescope (VST). Its 54 r-band visits over 3.3 yr and single-visit depth of…

Astrophysics of Galaxies · Physics 2022-08-24 D. De Cicco , F. E. Bauer , M. Paolillo , P. Sánchez-Sáez , W. N. Brandt , F. Vagnetti , G. Pignata , M. Radovich , M. Vaccari

We describe the effect of AGN light on host galaxy optical and UV-optical colours, as determined from X-ray-selected AGN host galaxies at z~1, and compare the AGN host galaxy colours to those of a control sample matched to the AGN sample in…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-19 C. M. Pierce , J. M. Lotz , S. Salim , E. S. Laird , A. L. Coil , K. Bundy , C. N. A. Willmer , D. J. V. Rosario , J. R. Primack , S. M. Faber

We have explored the interplay of star formation and AGN activity in soft X-rays (0.5-2 keV) in two samples of Seyfert 2 galaxies (Sy2s). Using a combination of low resolution CCD spectra from Chandra and XMM-Newton, we modeled the soft…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-11 Stephanie M. LaMassa , T. M. Heckman , A. Ptak