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Radiation, winds and jets from the active nucleus of a massive galaxy can interact with its interstellar medium leading to ejection or heating of the gas. This can terminate star formation in the galaxy and stifle accretion onto the black…

宇宙学与河外天体物理 · 物理学 2015-06-04 A. C. Fabian

While in massive galaxies active galactic nuclei (AGN) feedback plays an important role, the role of AGN feedback is still under debate in dwarf galaxies. With well spatially resolved data obtained from the Multi-Unit Spectroscopic Explorer…

星系天体物理 · 物理学 2023-06-07 Zhiyuan Zheng , Yong Shi , Fuyan Bian , Xiaoling Yu , Junfeng Wang , Jianhang Chen , Xin Li , Qiusheng Gu

Radio activity in AGN (Active Galactic Nuclei) produce feedback on the host galaxy via the impact of the relativistic jets on the circumnuclear gas. Although radio jets can reach up to several times the optical radius of the host galaxy, in…

星系天体物理 · 物理学 2023-03-22 Guilherme S. Couto , Thaisa Storchi-Bergmann

The co-evolution of galaxies and the supermassive black holes (SMBHs) at their centers via hierarchical galaxy mergers is a key prediction of $\Lambda$CDM cosmology. As gas and dust are funneled to the SMBHs during the merger, the SMBHs…

We report on the study of an intriguing active galaxy that was selected as a potential multiple supermassive black hole merger in the early-type host SDSS J151709.20+335324.7 (z=0.135). Ground-based SDSS imaging reveals two blue structures…

宇宙学与河外天体物理 · 物理学 2015-05-18 D. J. Rosario , G. A. Shields , G. B. Taylor , S. Salviander , K. L. Smith

Growing supermassive black holes (Active Galactic Nuclei; AGN) release energy with the potential to alter their host galaxies and larger-scale environment; a process named "AGN feedback". Feedback is a required component of galaxy formation…

星系天体物理 · 物理学 2024-04-15 Chris M. Harrison , Cristina Ramos Almeida

Representing simultaneous black hole accretion during a merger, binary active galactic nuclei (AGNs) could provide valuable observational constraints to models of galaxy mergers and AGN triggering. High-resolution radio interferometer…

星系天体物理 · 物理学 2015-12-09 Hai Fu , J. M. Wrobel , A. D. Myers , S. G. Djorgovski , Lin Yan

Kpc-scale triple active galactic nuclei (AGNs), potential precursors of gravitationally-bound triple massive black holes (MBHs), are rarely seen objects and believed to play an important role in the evolution of MBHs and their host…

星系天体物理 · 物理学 2022-08-03 Sijia Peng , Zhiyuan Li , Xin Liu , Kristina Nyland , Joan M. Wrobel , Meicun Hou

In the hierarchical structure formation model, galaxies grow through various merging events. Numerical simulations indicate that the mergers can enhance the activity of the central supermassive black holes in the galaxies. Pfeifle et al.…

星系天体物理 · 物理学 2019-10-02 Krisztina Éva Gabányi , Sándor Frey , Shobita Satyapal , Anca Constantin , Ryan W. Pfeifle

In these proceedings I briefly: (1) review the impact (or "feedback") that active galactic nuclei (AGN) are predicted to have on their host galaxies and larger scale environment, (2) review the observational evidence for or against these…

星系天体物理 · 物理学 2015-06-18 C. M. Harrison

Galaxy mergers are believed to play an important role in triggering rapid supermassive black hole (SMBH) growth. As merging nuclei approach each other, the physical properties of the participating galaxies and the associated SMBH growth are…

Active Galactic Nuclei (AGN) represent the growth phases of the supermassive black holes in the center of almost every galaxy. Powerful, highly ionized winds, with velocities $\sim 0.1- 0.2c$ are a common feature in X--ray spectra of…

星系天体物理 · 物理学 2015-09-23 Andrew King , Ken Pounds

Double-peaked narrow emission lines in active galactic nucleus (AGN) spectra can be produced by AGN outflows, rotation, or dual AGNs, which are AGN pairs in ongoing galaxy mergers. Consequently, double-peaked narrow AGN emission lines are…

We present results from a multi-wavelength analysis searching for multiple AGN systems in nearby (z<0.077) triple galaxy mergers. Combining archival Chandra, SDSS, WISE, and VLA observations, we quantify the rate of nearby triple AGN, as…

高能天体物理现象 · 物理学 2021-02-10 Adi Foord , Kayhan Gultekin , Jessie C. Runnoe , Michael J. Koss

The most accepted scenario for the evolution of massive galaxies across cosmic time predicts a regulation based on the interplay between AGN feedback, which injects large amounts of energy in the host environment, and galaxy mergers, being…

We study the effect of AGN mechanical and radiation feedback on the formation of bulge dominated galaxies via mergers of disc galaxies. The merging galaxies have mass-ratios of 1:1 to 6:1 and include pre-existing hot gaseous halos to…

宇宙学与河外天体物理 · 物理学 2015-06-16 Ena Choi , Thorsten Naab , Jeremiah P. Ostriker , Peter H. Johansson , Benjamin P. Moster

We use hydrodynamical simulations to study the color transformations induced by star formation and active galactic nuclei (AGN) during major mergers of spiral galaxies. Our modeling accounts for radiative cooling, star formation, and…

天体物理学 · 物理学 2009-11-10 Volker Springel , Tiziana Di Matteo , Lars Hernquist

Post starburst E+A galaxies show indications of a powerful starburst that was quenched abruptly. Their disturbed, bulge-dominated morphologies suggest that they are merger remnants. The more massive E+A galaxies are suggested to be quenched…

We use deep adaptive optics assisted integral field spectroscopy from SINFONI on the VLT to study the spatially resolved properties of ionized gas outflows driven by active galactic nuclei (AGN) in three galaxies at z~2.2 -- K20-ID5,…

We present the first implementation of Active Galactic Nuclei (AGN) feedback in the form of momentum driven jets in an Adaptive Mesh Refinement (AMR) cosmological resimulation of a galaxy cluster. The jets are powered by gas accretion onto…

宇宙学与河外天体物理 · 物理学 2015-05-18 Yohan Dubois , Julien Devriendt , Adrianne Slyz , Romain Teyssier
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