Results 41 to 50 of about 139,790 (125)
A Baryonic Effect on the Merger Timescale of Galaxy Clusters [PDF]
, 2016 Accurate estimation of the merger timescale of galaxy clusters is important to understand the cluster merger process and further the formation and evolution of the large-scale structure of the universe. In this paper, we explore a baryonic effect on the merger timescale of galaxy clusters by using hydrodynamical simulations.
arxiv +1 more source
The Astrophysical Journal, 2023 Dual active galaxy nuclei (dAGNs) trace the population of post-merger galaxies and are the precursors to massive black hole (MBH) mergers, an important source of gravitational waves that may be observed by the Laser Interferometer Space Antenna (LISA ...
Kunyang Li +3 more
doaj +1 more source
RIOJA. Complex Dusty Starbursts in a Major Merger B14-65666 at z = 7.15
The Astrophysical JournalWe present JWST NIRCam imaging of B14-65666 (“Big Three Dragons”), a bright Lyman-break galaxy system ( M _UV = −22.5 mag) at z = 7.15. The high angular resolution of NIRCam reveals the complex morphology of two galaxy components: galaxy E has a compact
Yuma Sugahara +22 more
doaj +1 more source
Halo Mergers, Galaxy Mergers, and Why Hubble Type Depends on Mass [PDF]
arXiv, 2008 In the CDM cosmological framework structures grow from merging with smaller structures. Merging should have observable effects on galaxies including destroying disks and creating spheroids. This proceeding aims to give a brief overview of how mergers occur in cosmological simulations.
arxiv
The Astrophysical JournalWe present Atacama Large Millimeter/submillimeter Array [C ii ] 158 μ m line and underlying far-IR continuum emission observations (0.″57 × 0.″46 resolution) toward a quasar–quasar pair system recently discovered at z = 6.05. The quasar nuclei (C1 and C2)
Takuma Izumi +17 more
doaj +1 more source
Interaction-Triggered Star Formation in Distant Galaxies and the Role of Mergers in Galaxy Evolution [PDF]
arXiv, 2009 The evolution of galaxy merger rates and its impact on galaxy properties have been studied intensively over the last decade. It becomes clear now that various types of mergers, i.e. gas-rich (wet), gas-poor (dry), or mixed mergers, affect the merger products in different ways. The epoch when each type of merger dominates also differs.
arxiv
Jet Interaction with Galaxy Cluster Mergers
The Astrophysical JournalActive galactic nucleus (AGN) bubbles in cool-core galaxy clusters are believed to facilitate the transport of cosmic-ray electrons (CRe) throughout the cluster.
P. Domínguez-Fernández +6 more
doaj +1 more source
The Fundamental Plane of Galaxy Group Mergers [PDF]
arXiv, 2012 We present a series of hundreds of collisionless simulations of galaxy group mergers. These simulations are designed to test whether the properties of elliptical galaxies - including the key fundamental plane scaling relation, morphology and kinematics - can be simultaneously reproduced by dry multiple mergers in galaxy groups.
arxiv
The Astrophysical JournalThe most massive early-type galaxies (ETGs) are known to form through numerous galaxy mergers. Thus, it is intriguing to study whether their formation in low-density environments, where nearby companions are almost absent, is associated with mergers ...
Yongmin Yoon, Jae-Woo Kim, Jongwan Ko
doaj +1 more source
The Open Journal of AstrophysicsMechanisms for quenching star formation in galaxies remain hotly debated, with galaxy mergers an oft-proposed pathway. In Ellison et al. (2022) we tested this scenario by quantifying the fraction of recently and rapidly quenched post-starbursts (PSBs) in
Sara Ellison +5 more
doaj +1 more source