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We characterize the incidence of active galactic nuclei (AGNs) is 0.3 < z < 1 star-forming galaxies by applying multi-wavelength AGN diagnostics (X-ray, optical, mid-infrared, radio) to a sample of galaxies selected at 70-micron from the…

It is well established that a dominant phase in the growth of massive galaxies occurred at high redshift and was heavily obscured by gas and dust. Many studies have explored the stellar growth of massive galaxies but few have combined these…

Cosmology and Nongalactic Astrophysics · Physics 2009-11-23 D. M. Alexander

Investigating the assembly history of the most massive and passive galaxies will enhance our understanding of why galaxies exhibit such a remarkable diversity in structure and morphology. In this paper, we simultaneously investigate the…

Astrophysics of Galaxies · Physics 2025-01-22 D. Stoppacher , A. D. Montero-Dorta , M. C. Artale , A. Knebe , N. Padilla , A. J. Benson , C. Behrens

Magnitude-limited galaxy redshift surveys are now providing large samples of galaxies to beyond z=2, while color-selected and emission-line-selected samples are finding galaxies to z=4.7. A broad picture is emerging of galaxy formation…

Astrophysics · Physics 2007-05-23 Lennox L. Cowie

[Abridged] We extend color-magnitude relations for moderate-luminosity X-ray AGN hosts and non-AGN galaxies through the galaxy formation epoch in the Chandra Deep Fields. We utilized analyses of color-magnitude diagrams (CMDs) to assess the…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-19 Y. Q. Xue , W. N. Brandt , B. Luo , D. A. Rafferty , D. M. Alexander , F. E. Bauer , B. D. Lehmer , D. P. Schneider , J. D. Silverman

We present initial results from a Hubble Space Telescope snapshot imaging survey of the host galaxies of Swift-BAT active galactic nuclei (AGN) at z<0.1. The hard X-ray selection makes this sample sample relatively unbiased in terms of…

Astrophysics of Galaxies · Physics 2021-10-12 Minjin Kim , Aaron J. Barth , Luis C. Ho , Suyeon Son

Overdense regions at high redshift ($z \gtrsim 2$) are perfect laboratories to study the relations between environment and SMBH growth, and the AGN feedback processes on the surrounding galaxies and diffuse gas. In this white paper, we…

Instrumentation and Methods for Astrophysics · Physics 2023-11-16 Fabio Vito , Paolo Tozzi , Roberto Gilli , Stefano Marchesi , Nico Cappelluti , Adi Foord

We present results of the clustering analysis between active galactic nuclei (AGNs) and galaxies at redshift 0.1-1.0 for investigating properties of galaxies associated with the AGNs, revealing the nature of fueling mechanism of…

Astrophysics of Galaxies · Physics 2016-02-17 Yuji Shirasaki , Yutaka Komiya , Masatoshi Ohishi , Yoshihiko Mizumoto

In this work the INTEGRAL hard X-ray selected sample of AGN has been used to investigate the possible contribution of absorbing material distributed within the host galaxies to the total amount of NH measured in the X-ray band. We collected…

High Energy Astrophysical Phenomena · Physics 2020-07-08 A. Malizia , L. Bassani , J. B. Stephen , A. Bazzano , P. Ubertini

We present deep {\it Spitzer} mid-infrared spectroscopy, along with 16, 24, 70, and 850\,$\micron$\ photometry, for 22 galaxies located in the Great Observatories Origins Deep Survey-North (GOODS-N) field. The sample spans a redshift range…

Cosmology and Nongalactic Astrophysics · Physics 2010-05-06 E. J. Murphy , R. R. Chary , D. M. Alexander , M. Dickinson , B. Magnelli , G. Morrison , A. Pope , H. I. Teplitz

We present the results of an analysis of Wide-field Infrared Survey Explorer (WISE) observations on the full 2500 deg^2 South Pole Telescope (SPT)-SZ cluster sample. We describe a process for identifying active galactic nuclei (AGN) in…

While AGN are considered to be key drivers of the evolution of massive galaxies, their potentially significant role in the dwarf-galaxy regime (M*< 10^9 MSun) remains largely unexplored. We combine optical and infrared data, from the Hyper…

Astrophysics of Galaxies · Physics 2019-09-18 Sugata Kaviraj , Garreth Martin , Joseph Silk

Observations and theoretical simulations suggest that the large scale environment plays a significant role in how galaxies form and evolve and, in particular, whether and when galaxies host an actively accreting supermassive black hole in…

Astrophysics of Galaxies · Physics 2025-07-16 Anish S. Aradhey , Anca Constantin , Michael S. Vogeley , Kelly A. Douglass

Active galactic nucleus (AGN) driven outflows can have a significant impact on the evolution of the host galaxy. In this work, we compare the properties of galaxies that hosts AGNs with and without outflows. Our sample consists of 103 AGNs…

Astrophysics of Galaxies · Physics 2024-03-06 Gabriel A. Oio , Y. Sophia Dai , C. G. Bornancini , Zi-Jian Li

It is well known that supermassive black holes (SMBHs) and their host galaxies co-evolve. A manifestation of this co-evolution is the correlation that has been found between the SMBH mass, M$_{BH}$, and the galaxy bulge or stellar mass,…

Astrophysics of Galaxies · Physics 2023-04-12 George Mountrichas

Powerful extended radio galaxies in the 3CR survey are observed out to redshifts of about 2. For redshifts greater than about 0.3, the average lobe-lobe size of the sources decreases monotonically with redshift for all reasonable…

Astrophysics · Physics 2016-08-17 Erick J. Guerra , Ruth A. Daly

Using new, highly accurate photometric redshifts from the MUSYC medium-band survey in the Extended Chandra Deep Field South (ECDF-S), we fit synthetic stellar population models to compare AGN host galaxies to inactive galaxies at 0.8 < z <…

Cosmology and Nongalactic Astrophysics · Physics 2010-11-19 Carolin N. Cardamone , C. Megan Urry , Kevin Schawinski , Ezequiel Treister , Gabriel Brammer , Eric Gawiser

The physical and evolutionary relation between growing supermassive black holes (AGN) and host galaxies is currently the subject of intense research activity. Nevertheless, a deep theoretical understanding of such a relation is hampered by…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-14 Andrea Merloni

We explore the role of AGN in establishing and/or maintaining the bimodal colour distribution of galaxies by quenching their star-formation and hence, causing their transition from the blue to the red cloud. Important tests for this…

We conduct a study on the relationship between galaxy environments and their active galactic nuclei (AGN) activity at high redshifts ($2.0<z<4.0$). Specifically, we study the AGN fraction in galaxies residing in a range of environments at…

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