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We study the connection between active galactic nuclei (AGN) and their host galaxies through cosmic time in the large-scale cosmological IllustrisTNG simulations. We first compare BH properties, i.e. the hard X-ray BH luminosity function,…

A major amendment in recent models of hierarchical galaxy formation is the inclusion of so-called AGN feedback. The energy input from an active central massive black hole is invoked to suppress star formation in early-type galaxies at later…

Observations at low redshift have begun to tease out the star formation rate in active galaxies (AGN), which marks the beginning of the black hole-star formation connection over cosmic time. Star formation appears to depend on AGN type,…

High Energy Astrophysical Phenomena · Physics 2021-11-03 Chandra B. Singh , Nelitha Kulasiri , Max North , David Garofalo

Based on a comparison of dynamical models with observations of the interstellar gas in 6 Virgo cluster spiral galaxies a first complete ram pressure stripping time sequence has been established. The observational characteristics of the…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-13 B. Vollmer

This is the first paper in a series using our MACER framework to investigate the evolution of a disk galaxy, which emphasizes the role of active galactic nucleus (AGN) feedback and incorporates cosmological inflows. This paper presents the…

Astrophysics of Galaxies · Physics 2026-03-13 Yuxuan Zou , Feng Yuan , Suoqing Ji , Luis C. Ho , Yingjie Peng , Jing Wang , Bocheng Zhu , Tao Wang

Disks of gas accreting onto supermassive black holes are thought to power active galactic nuclei (AGN). Stars may form in gravitationally unstable regions of these disks, or may be captured from nuclear star clusters. Because of the dense…

Astrophysics of Galaxies · Physics 2021-08-04 Alexander J. Dittmann , Matteo Cantiello , Adam S. Jermyn

We identify the intrinsic dependence of star formation quenching on a variety of galactic and environmental parameters, utilizing a machine learning approach with Random Forest classification. We have previously demonstrated the power of…

Astrophysics of Galaxies · Physics 2023-02-22 Asa F. L. Bluck , Joanna M. Piotrowska , Roberto Maiolino

We perform two dimensional hydrodynamic numerical simulations to study the positive active galactic nucleus feedback which triggers, rather than suppresses, star formation. Recently, it was shown by Nayakshin et al. and Ishibashi et al.…

Astrophysics of Galaxies · Physics 2015-06-15 Chao Liu , Zhao-ming Gan , Fu-guo Xie

We investigate how a satellite's star formation rate (SFR) and surviving gas respond to ram pressure stripping in various environments. Using a suite of high-resolution "wind-tunnel" simulations with radiative cooling, star formation, and…

Astrophysics of Galaxies · Physics 2023-09-14 Jingyao Zhu , Stephanie Tonnesen , Greg L Bryan

We present a study of the active galactic nucleus (AGN) activity in the local Universe (z < 0.33) and its correlation with the host galaxy properties, derived from a Sloan Digital Sky Survey (SDSS DR8) sample with spectroscopic…

Elliptical galaxies contain X-ray emitting gas that is subject to continuous ram pressure stripping over timescales comparable to cluster ages. The gas in these galaxies is not in perfect hydrostatic equilibrium. Supernova feedback, stellar…

Cosmology and Nongalactic Astrophysics · Physics 2012-10-29 Min-Su Shin , Mateusz Ruszkowski

Ram pressure stripping can remove hot and cold gas from galaxies in the intracluster medium (ICM), as shown by observations of X-ray and HI galaxy wakes in nearby clusters of galaxies. However, ram pressure stripping, including…

Astrophysics of Galaxies · Physics 2015-06-24 Rukmani Vijayaraghavan , Paul M. Ricker

We use a large suite of carefully controlled full hydrodynamic simulations to study the ram pressure stripping of the hot gaseous halos of galaxies as they fall into massive groups and clusters. The sensitivity of the results to the orbit,…

Active Galactic Nuclei (AGN) feedback is a key physical mechanism proposed to regulate star formation, primarily in massive galaxies. In particular, cosmic rays associated with AGN jets have the potential to efficiently suppress cooling…

Astrophysics of Galaxies · Physics 2025-02-04 Kung-Yi Su , Greg L. Bryan , Philip F. Hopkins , Priyamvada Natarajan , Sam B. Ponnada , Razieh Emami , Yue Samuel Lu

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…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-18 Yohan Dubois , Julien Devriendt , Adrianne Slyz , Romain Teyssier

The energetic feedback from supermassive black holes can influence star formation at the centres of galaxies. Observational evidence for active galactic nucleus (AGN) impact on star formation can be searched for in galaxies by combining…

Astrophysics of Galaxies · Physics 2022-11-14 Prajwel Joseph , Koshy George , K. T. Paul

It is well known that galaxies falling into clusters can experience gas stripping due to ram-pressure by the intra-cluster medium (ICM). The most spectacular examples are galaxies with extended tails of optically-bright stripped material…

AGN outflows can remove large quantities of gas from their host galaxy spheroids, potentially shutting off star formation. On the other hand, they can compress this gas, potentially enhancing or triggering star formation, at least for short…

Astrophysics of Galaxies · Physics 2017-04-27 Kastytis Zubovas , Martin A. Bourne

With MaNGA integral field spectroscopy, we present a resolved analysis of star formation for 29 jellyfish galaxies in nearby clusters, identified from radio continuum imaging taken by the Low Frequency Array. Simulations predict enhanced…

Outward radiation pressure can exceed the inward gravitational pull on gas clouds in the neighbourhood of a luminous Active Galactic Nucleus (AGN). This creates a forbidden region for long-lived dusty clouds in the observed columnn density…

Astrophysics of Galaxies · Physics 2009-11-13 A. C. Fabian , R. V. Vasudevan , R. F. Mushotzky , L. M. Winter C. S. Reynolds