Results 1 to 10 of about 823 (120)

Two Candidates for Dual AGN in Dwarf-dwarf Galaxy Mergers

open access: yesThe Astrophysical Journal, 2023
Dual active galactic nuclei (DAGN) are important for understanding galaxy-merger-triggered fueling of black holes and the hierarchical growth of structures.
Marko Mićić   +3 more
doaj   +1 more source

Back to the Green Valley: How to Rejuvenate an S0 Galaxy through Minor Mergers

open access: yesGalaxies, 2015
About half of the S0 galaxies in the nearby Universe show signatures of recent or ongoing star formation. Whether these S0 galaxies were rejuvenated by the accretion of fresh gas is still controversial.
Michela Mapelli
doaj   +1 more source

Caught in the web: Galaxy mergers along cosmic filaments

open access: yesAstronomy & Astrophysics
Context. Galaxy clusters grow through the accretion of galaxies from groups, filaments, and other clusters. During this process, galaxies may undergo pre-processing in lower density environments, where galaxy–galaxy mergers and other interactions can ...
Dulcien Carolina   +33 more
doaj   +1 more source

Improved Constraints on Mergers with SZ, Hydrodynamical simulations, Optical, and X-ray (ICM-SHOX) [PDF]

open access: yesEPJ Web of Conferences
Galaxy cluster mergers are representative of a wide range of physics, making them an excellent probe of the properties of dark matter and the ionized plasma of the intracluster medium.
Silich E.M.   +14 more
doaj   +1 more source

The Role of AGN in Luminous Infrared Galaxies from the Multiwavelength Perspective

open access: yesUniverse, 2022
Galaxy mergers provide a mechanism for galaxies to effectively funnel gas and materials toward their nuclei and fuel the central starbursts and accretion of supermassive black holes.
Vivian U
doaj   +1 more source

An Excess of Active Galactic Nuclei Triggered by Galaxy Mergers in MaNGA Galaxies of Stellar Mass ∼1011 M ⊙

open access: yesThe Astrophysical Journal
To facilitate new studies of galaxy-merger-driven fueling of active galactic nuclei (AGNs), we present a catalog of 387 AGNs that we have identified in the final population of over 10,000 z < 0.15 galaxies observed by the Sloan Digital Sky Survey-IV ...
Julia M. Comerford   +9 more
doaj   +1 more source

SDSS-IV MaNGA: How Galaxy Interactions Influence Active Galactic Nuclei

open access: yesThe Astrophysical Journal, 2023
We present a comparative study of active galactic nuclei (AGN) between galaxy pairs and isolated galaxies with the final data release of the MaNGA integral field spectroscopic survey.
Joshua L. Steffen   +9 more
doaj   +1 more source

Identifying Mergers in the Legacy Surveys with Few-shot Learning

open access: yesThe Astrophysical Journal Supplement Series
Galaxy mergers exert a pivotal influence on the evolutionary trajectory of galaxies and the expansive development of cosmic structures. The primary challenge encountered in machine learning–based identification of merging galaxies arises from the ...
Shoulin Wei   +6 more
doaj   +1 more source

MAGICS I. The First Few Orbits Encode the Fate of Seed Massive Black Hole Pairs

open access: yesThe Open Journal of Astrophysics
The elusive massive black hole (MBH) seeds stand to be revealed by the Laser Space Antenna Interferometer through mergers. As an aftermath of galaxy mergers, MBH coalescence is a vastly multi-scale process connected to galaxy formation. We introduce the "
Nianyi Chen   +5 more
doaj   +1 more source

On the Frequency of Multiple Galaxy Mergers in ΛCDM Cosmological Simulations

open access: yesThe Astrophysical Journal
Mergers are believed to play a pivotal role in galaxy evolution, and measuring the galaxy merger fraction is a longstanding goal of both observational and theoretical studies.
Jonathan Mack, Shy Genel
doaj   +1 more source

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