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相关论文: Cosmological evolution of the AGN Kinetic Luminosi…

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The recently discovered apparent dramatic expansion in the effective radii of massive elliptical galaxies from $z \simeq 2$ to $z \simeq 0.1$ has been interpreted in terms of either galaxy mergers or the rapid loss of cold gas due to AGN…

宇宙学与河外天体物理 · 物理学 2015-05-13 A. Mangalam , Gopal-Krishna , Paul J. Wiita

We derive the kinetic luminosity function for flat spectrum radio jets, using the empirical and theoretical scaling relation between jet power and radio core luminosity. The normalization for this relation is derived from a sample of flat…

天体物理学 · 物理学 2009-01-19 Sebastian Heinz , Andrea Merloni , Josiah Schwab

We present a determination of the local (z=0) luminosity function of optically selected type 1 (broad-line) Active Galactic Nuclei. Our primary resource is the Hamburg/ESO Survey (HES), which provides a well-defined sample of more than 300…

宇宙学与河外天体物理 · 物理学 2015-05-14 Andreas Schulze , Lutz Wisotzki , Bernd Husemann

We study the moderate-to-high radiative luminosity active galactic nuclei (HLAGN) within the VLA-COSMOS 3 GHz Large Project. The survey covers 2.6 square degrees centered on the COSMOS field with a 1$\sigma$ sensitivity of 2.3 $\mathrm{\mu…

星系天体物理 · 物理学 2018-08-22 Lana Ceraj , Vernesa Smolčić , Ivan Delvecchio , Jacinta Delhaize , Mladen Novak

We present luminosity functions derived from a spectroscopic survey of AGN selected from Spitzer Space Telescope imaging surveys. Selection in the mid-infrared is significantly less affected by dust obscuration. We can thus compare the…

We have studied the dependence of the AGN nuclear radio (1.4 GHz) luminosity on both the AGN 2-10 keV X-ray and the host-galaxy K-band luminosity. A complete sample of 1268 X-ray selected AGN (both type 1 and type 2) has been used, which is…

宇宙学与河外天体物理 · 物理学 2017-03-22 A. Bonchi , F. La Franca , G. Melini , A. Bongiorno , F. Fiore

We investigate the origin of the parsec-scale radio emission from the changing-look active galactic nucleus (AGN) of Mrk 590, and examine whether the radio power has faded concurrently with the dramatic decrease in accretion rates observed…

星系天体物理 · 物理学 2016-06-30 J. Y. Koay , M. Vestergaard , H. E. Bignall , C. Reynolds , B. M. Peterson

Powerful supermassive black hole (SMBH) winds in the form of ultra-fast outflows (UFOs) are detected in the X-ray spectra of several active galactic nuclei (AGN) seemingly independently of their radio classification between radio quiet (RQ)…

高能天体物理现象 · 物理学 2024-07-02 S. Mestici , F. Tombesi , M. Gaspari , E. Piconcelli , F. Panessa

We present the estimate of the evolution of type 1 AGNs in the hard (2-10 keV) X-rays drawn from the HELLAS survey, and in the IR (15um) obtained from the ELAIS survey. We find that the local luminosity function (LF) of AGN1 in the 2-10 keV…

We investigate how the total radio luminosity of AGN-powered radio sources depends on their accretion luminosity and the central black hole mass. We find that AGNs form two distinct and well separated sequences on the radio-loudness -…

天体物理学 · 物理学 2007-07-17 L. Stawarz , M. Sikora , J. -P. Lasota

Radio-Loud (RL) Active Galactic Nuclei (AGNs) are among the brightest astrophysical sources at all wavelengths. Their relativistic jets can affect both their Supermassive Black Holes (SMBHs) growth and the surrounding intergalactic medium.…

星系天体物理 · 物理学 2022-10-03 Luca Ighina

Three-dimensional simulations of relativistic jets are a useful tool to understand the evolution of jets and radio galaxies in detail. However, computationally demanding as they are, their use is limited to a relatively small number of…

宇宙学与河外天体物理 · 物理学 2026-01-14 Pau Beltrán-Palau , Manel Perucho , José María Martí

[Abridged] We present a comprehensive investigation of the cosmological evolution of the luminosity function (LF) of galaxies and active galactic nuclei (AGN) in the infrared (IR). Based on the observed dichotomy in the ages of stellar…

We study the Extended Chandra Deep Field South (E-CDFS) Very Large Array sample, which reaches a flux density limit at 1.4 GHz of 32.5 microJy at the field centre and redshift ~ 4, and covers ~ 0.3 deg^2. Number counts are presented for the…

星系天体物理 · 物理学 2015-08-06 P. Padovani , M. Bonzini , K. I. Kellermann , N. Miller , V. Mainieri , P. Tozzi

We investigate the correlation between ionized gas outflows, jets, and star formation in a sample of 42 local type-I active galactic nuclei (AGNs) exhibiting significant [O III] outflows. This study uses both new submillimeter (sub-mm)…

星系天体物理 · 物理学 2026-01-16 Chen Qin , Huynh Anh N. Le , Yongquan Xue , Shifu Zhu , Xiaozhi Lin , Kim Ngan Nhat Nguyen

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)…

星系天体物理 · 物理学 2026-03-23 Tong Su , Qi Guo , Erlin Qiao , Wenxiang Pei , Luis C. Ho , Cedric G. Lacey

Simulations of galaxy growth need to invoke strong negative feedback from active galactic nuclei (AGN) to suppress the formation of stars and thus prevent the over-production of very massive systems. While some observations provide evidence…

宇宙学与河外天体物理 · 物理学 2017-03-08 Peter-Christian Zinn , Enno Middelberg , Ray P. Norris , Ralf-Jürgen Dettmar

A new scenario is suggested to explain a large diversity of the AGN radio properties and their dependence on the galaxy morphology. The scenario is based on the assumption that the growth of supermassive BHs is dominated by the accretion…

天体物理学 · 物理学 2009-11-13 M. Sikora

Partially obscured AGNs within a redshift range $z=0.011\sim0.256$ are used to re-study the role of feedback in the AGN-host coevolution issue in terms of their [OIII]$\lambda$5007 emission line profile. The spectra of these objects enable…

星系天体物理 · 物理学 2015-06-23 J. Wang

We have found empirically that the radio loudness of AGN can be understood as function of both the X-ray and optical luminosity. This way of considering the radio loudness was inspired by the hardness-intensity diagrams for X-ray binaries,…

天体物理学 · 物理学 2008-11-26 Sebastian Jester , Elmar Koerding , Rob Fender