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We investigate the multi-wavelength properties of host galaxies of 3701 X-ray-selected active galactic nuclei (AGNs) out to z~5 in the Chandra-COSMOS Legacy Survey. Thanks to the extensive multi-wavelength photometry available in the COSMOS…

We study the effects of Active Galactic Nuclei (AGN) feedback on the formation and evolution of galaxies in a semi-analytic model of galaxy formation. This model is an improved version of the one described by Cora (2006), which now…

Astrophysics · Physics 2009-11-13 Claudia del P. Lagos , Sofia A. Cora , Nelson D. Padilla , .

We present new estimates of redshift-dependent luminosity functions of IR lines detectable by SPICA/SAFARI and excited both by star formation and by AGN activity. The new estimates improve over previous work by using updated evolutionary…

Astrophysics of Galaxies · Physics 2015-06-22 M. Bonato , M. Negrello , Z. -Y. Cai , G. De Zotti , A. Bressan , A. Lapi , F. Pozzi , C. Gruppioni , L. Danese

We examine the relationship between galaxies, supermassive black holes and AGN using a sample of 22,000 narrow-emission-line AGN drawn from a a sample of 122,000 galaxies from the Sloan Digital Sky Survey. We have studied how AGN host…

Astrophysics · Physics 2009-11-10 Guinevere Kauffmann , Timothy Heckman

We investigate the star formation activity and black hole scaling relations in a sample of 1451 AGN hosted by dwarf galaxies at redshift 0.5 to 0.9, drawn from the VIPERS survey. The sample comprises Seyferts and LINERs identified through…

Astrophysics of Galaxies · Physics 2025-10-01 G. Mountrichas , M. Siudek , F. J. Carrera

Exploring how radio-emitting active galactic nuclei (AGN) behave and evolve with time is critical for understanding how AGN feedback impacts galaxy evolution. In this work, we investigate the relationship between 1.4 GHz radio continuum AGN…

We present an analysis of deep multiwavelength data for z ~ 0.3-3 starburst galaxies selected by their 70 um emission in the Extended-Chandra Deep Field-South and Extended Groth Strip. We identify active galactic nuclei (AGNs) in these…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-30 D. A. Rafferty , W. N. Brandt , D. M. Alexander , Y. Q. Xue , F. E. Bauer , B. D. Lehmer , B. Luo , C. Papovich

We use X-ray Active Galactic Nuclei (AGN) observed by the Chandra X-ray Observatory within the 9.3 deg$^2$ Bo$\rm \ddot{o}$tes field of the NDWFS to study whether there is a correlation between X-ray luminosity (L$_X$) and star formation…

Astrophysics of Galaxies · Physics 2021-10-05 G. Mountrichas , V. Buat , G. Yang , M. Boquien , D. Burgarella , L. Ciesla , K. Malek , R. Shirley

The coeval AGN and galaxy evolution and the observed local relations between SMBHs and galaxy properties suggest some connection or feedback between SMBH growth and galaxy build-up. We looked for correlations between properties of X-ray…

We use 3,213 Active Galactic Nuclei (AGNs) from the $\it{XMM}$-XXL northern field to investigate the relation of AGN type with host galaxy properties. Applying a Bayesian method, we derive the hardness ratios (HRs) and through these the…

Astrophysics of Galaxies · Physics 2021-02-24 V. A. Masoura , G. Mountrichas , I. Georgantopoulos , M. Plionis

We present the star formation rate (SFR) measurements based on the spectral energy distribution (SED) analysis with new sub-mm fluxes combined with archival multi-wavelength data for a sample of 52 AGN host galaxies at z $<0.2$. We carried…

Modeling the spectral energy distribution (SED) of active galactic nuclei (AGN) plays a very important role in constraining modern cosmological simulations of galaxy formation. Here, we utilize an advanced supermassive black hole (SMBH)…

Astrophysics of Galaxies · Physics 2026-03-23 Tong Su , Qi Guo , Erlin Qiao , Wenxiang Pei , Luis C. Ho , Cedric G. Lacey

It has been well established in the past decades that the central black hole masses of galaxies correlate with dynamical properties of their harbouring bulges. This notion begs the question of whether there are causal connections between…

Over the last few years, the existence of mutual feedback effects between accreting supermassive black holes powering AGN and star formation in their host galaxies has become evident. This means that the formation and the evolution of AGN…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-18 M. Brusa

For spiral galaxies, the active galactic nucleus (AGN) and some physical parameters that concern the host galaxy such as spiral arm radius and density can play an important role in the morphological evolution of these galaxies. Considering…

Astrophysics of Galaxies · Physics 2023-01-03 M. A. Abdulrahman , K. A. K. Gadallah , A. Ahmed , M. S. Elnawawy

Understanding the connection between active galactic nuclei and star-formation (the AGN-SF connection) is one of the longest standing problems in modern astrophysics. In the age of large Integral Field Unit (IFU) surveys, studies of the…

Astrophysics of Galaxies · Physics 2026-03-11 Aman Chopra , Henry R. M. Zovaro , Rebecca L. Davies

We analyzed a sample of $\sim$113,000 galaxies ($\rm z < 0.3$) from the Sloan Digital Sky Survey, divided into star-forming, composite, Seyfert, and LINER types, to explore the relationships between UV-to-optical colors ($\rm u-r$), star…

Astrophysics of Galaxies · Physics 2024-12-20 Huynh Anh N. Le , Yongquan Xue

Galaxy evolution is affected by competing feedback processes. Stellar feedback dominates in low-mass galaxies, while AGN feedback predominantly affects massive ones. Recent observational results reveal the dependence of black hole accretion…

Astrophysics of Galaxies · Physics 2018-07-11 Kastytis Zubovas

We study the interaction of feedback from active galactic nuclei (AGN) and a multi-phase interstellar medium (ISM), in simulations including explicit stellar feedback, multi-phase cooling, accretion-disk winds, and Compton heating. We…

Astrophysics of Galaxies · Physics 2016-11-09 Philip F. Hopkins , Paul Torrey , Claude-Andre Faucher-Giguere , Eliot Quataert , Norman Murray