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Related papers: Dynamically close galaxy pairs from the unWISE sur…

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Galaxy mergers represent a fundamental physical process under hierarchical structure formation, but their role in triggering AGNs is still unclear. We aim to investigate the merger-AGN connection using state-of-the-art observations and…

Galaxy mergers are capable of triggering both star formation and active galactic nuclei (AGN) and therefore may represent an important pathway in the co-evolution of galaxies and supermassive black holes (SMBHs). However, correlated…

Astrophysics of Galaxies · Physics 2017-11-29 R. Scott Barrows , Julia M. Comerford , Nadia L. Zakamska , Michael C. Cooper

We study nearby galaxies in close pairs to study the key factors affecting star formation and AGN activity triggered during galaxy interactions. Close pairs are selected from the Sloan Digital Sky Survey assuming a projected separation of…

Astrophysics of Galaxies · Physics 2015-06-17 Caroline Scott , Sugata Kaviraj

Galaxy major mergers are a potential mechanism for triggering active galactic nuclei (AGN) activity, but their role remains debated, particularly beyond the local Universe. We aim to shed light on the merger-AGN connection at $z=0.5$-$2$,…

Astrophysics of Galaxies · Physics 2026-04-29 A. La Marca , B. Margalef-Bentabol , L. Wang , S. C. Trager , V. Rodriguez-Gomez , G. Martin

Galaxy mergers and interactions are often invoked to explain enhanced star formation, black hole growth, and mass build-up of galaxies at later cosmic times, but their effect is poorly understood at high redshift ($z>2$). We use JADES data…

We present a study of the incidence of active galactic nucleus (AGN) in a sample of major merging systems at 0.3<z<2.5. Galaxies in this merger sample have projected separations between 3 to 15 kpc and are selected from the CANDELS/3D-HST…

Aims. The fueling and feedback of Active Galactic Nuclei (AGNs) are important in understanding the co-evolution between black holes and host galaxies. Mergers are thought to have the capability to bring gas inwards and ignite nuclear…

Astrophysics of Galaxies · Physics 2020-05-27 F. Gao , L. Wang , W. J. Pearson , Y. A. Gordon , B. W. Holwerda , A. M. Hopkins , M. J. I. Brown , J. Bland-Hawthorn , M. S. Owers

Galaxy mergers have long been proposed as a mechanism for funneling gas toward galactic centres, potentially triggering accretion onto supermassive black holes (SMBHs) and igniting active galactic nuclei (AGN). While simulations often…

Close encounters between galaxies are expected to be a viable mechanism, as predicted by numerical simulations, by which accretion onto supermassive black holes can be initiated. To test this scenario, we construct a sample of 562 galaxies…

The role of active galactic nuclei (AGNs) during galaxy interactions and how they influence the star formation in the system are still under debate. We use a sample of 1156 galaxies in galaxy pairs or mergers (hereafter `pairs') from the…

Models of galaxy formation invoke the major merger of gas-rich progenitor galaxies as the trigger for significant phases of black hole growth and the associated feedback that suppresses star formation to create red spheroidal remnants.…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-18 Kevin Schawinski , Nathan Dowlin , Daniel Thomas , C. Megan Urry , Edward Edmondson

Pairs of galaxies hosting active galactic nuclei (AGN) are powerful probes of merger-driven supermassive black hole (SMBH) growth as they can resolve individual AGN and trace mergers over a large range of physical separations. To exploit…

Astrophysics of Galaxies · Physics 2023-07-12 R. Scott Barrows , Julia M. Comerford , Daniel Stern , Roberto J. Assef

Galaxy mergers are likely to play a role in triggering active galactic nuclei (AGN), but the conditions under which this process occurs are poorly understood. In Paper I, we constructed a sample of spatially offset X-ray AGN that represent…

Astrophysics of Galaxies · Physics 2017-04-12 R. Scott Barrows , Julia M. Comerford , Jenny E. Greene , David Pooley

Galaxy-galaxy interactions are predicted to cause gas inflows leading to enhanced nuclear star formation. In this paper we test the further prediction that the gas inflows lead to enhanced accretion onto the central supermassive black hole,…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-30 Sara L. Ellison , David R. Patton , J. Trevor Mendel , Jillian M. Scudder

[Abridged] Active Galactic Nuclei (AGN) are thought to be responsible for the suppression of star formation in massive ~10$^{10}$ M$_\odot$ galaxies. While this process is a key feature in numerical simulations, it is not yet unambiguously…

Collisions and interactions between gas-rich galaxies are thought to be pivotal stages in their formation and evolution, causing the rapid production of new stars, and possibly serving as a mechanism for fueling supermassive black holes…

Interactions between galaxies are predicted to cause gas inflows that can potentially trigger nuclear activity. Since the inflowing material can obscure the central regions of interacting galaxies, a potential limitation of previous optical…

Astrophysics of Galaxies · Physics 2015-06-19 Shobita Satyapal , Sara L. Ellison , William McAlpine , Ryan C. Hickox , David R. Patton , J. Trevor Mendel

Interactions and mergers play an important role in regulating the physical properties of galaxies, such as their morphology, gas content, and star formation rate (SFR). Controversy exists as to the degree to which these events, even…

Astrophysics of Galaxies · Physics 2023-08-16 Yang A. Li , Luis C. Ho , Jinyi Shangguan
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