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Related papers: Kinematic Evolution of Simulated Star-Forming Gala…

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We analyse the phase-space structure of simulated thick discs that are the result of a significant merger between a disc galaxy and a satellite. Our main goal is to establish what would be the characteristic imprints of a merger origin for…

Astrophysics of Galaxies · Physics 2015-05-13 Álvaro Villalobos , Amina Helmi

A sample of very high resolution cosmological disk galaxy simulations is used to investigate the evolution of galaxy disk sizes back to redshift 1 within the Lambda CDM cosmology. Artificial images in the rest frame B band are generated,…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-20 Alyson Brooks , Adam Solomon , Fabio Governato , Jacqueline McCleary , Lauren MacArthur , Chris Brook , Patrik Jonsson , Tom Quinn , James Wadsley

The spatial and temporal relationships between stellar age, kinematics, and chemistry are a fundamental tool for uncovering the physics driving galaxy formation and evolution. Observationally, these trends are derived using carefully…

Astrophysics of Galaxies · Physics 2022-10-26 M. S. Miranda , B. A. Macfarlane , B. K. Gibson

We discuss evidence in local, present-day clusters of galaxies (from the ENACS survey) about the way in which those clusters have evolved and about the evolutionary relationships between the galaxies of different morphological types in…

Astrophysics · Physics 2009-11-10 Andrea Biviano , Peter Katgert

Stellar systems - star clusters, galaxies, dark matter haloes, and so on - are ubiquitous characters in the evolutionary tale of our Universe. This tutorial article is an introduction to the collective dynamical evolution of the very large…

Astrophysics of Galaxies · Physics 2024-11-08 Chris Hamilton , Jean-Baptiste Fouvry

Observations of highly rotationally supported gas discs in high redshift ($z$ > 3) star-forming galaxies challenge our understanding of galaxy formation, as the prevailing view holds that galaxies in the early universe are dynamically hot…

Astrophysics of Galaxies · Physics 2026-04-22 Yi He , Qi Guo , Filippo Fraternali , Hang Yang , Shihong Liao

Gaia DR2 has delivered full-sky 6-D measurements for millions of stars, and the quest to understand the dynamics of our Galaxy has entered a new phase. Our aim is to reveal and characterize the kinematic sub-structure of the different…

Astrophysics of Galaxies · Physics 2018-11-14 P. Ramos , T. Antoja , F. Figueras

We report the first robust measurement of the Milky Way star formation history using the imprint left on chemical abundances of long-lived stars. The formation of the Galactic thick disc occurs during an intense star formation phase between…

Astrophysics of Galaxies · Physics 2015-06-18 Owain N. Snaith , Misha Haywood , Paola Di Matteo , Matthew D. Lehnert , Francoise Combes , David Katz , Ana Gomez

The evolution of circumstellar discs is influenced by their surroundings. The relevant processes include external photoevaporation due to nearby stars, and dynamical truncations. The impact of these processes on disc populations depends on…

Astrophysics of Galaxies · Physics 2025-10-03 Francisca Concha-Ramírez , Maite J. C. Wilhelm , Simon Portegies Zwart

Globular clusters (GCs) are powerful tracers of galaxy assembly, frequently used to identify accreted substructure and reconstruct hierarchical merger histories. With advances in GC formation models and cosmological simulations, we can now…

Astrophysics of Galaxies · Physics 2026-04-10 Finn A. Pal , Sarah L. Martell , Elizabeth J. Iles

Observed accretion rates onto the Milky-Way and other local spirals fall short of that required to sustain star formation for cosmological timescales. A potential avenue for this unseen accretion is an inflow in the volume-filling hot phase…

The formation and evolution of galactic disks are complex phenomena, where gas and star dynamics are coupled through star formation and the related feedback. The physical processes are so numerous and intricate that numerical models focus,…

Astrophysics · Physics 2009-11-07 B. Semelin , F. Combes

We study the evolution of disk galaxies using galaxy evolutionary models with initial and boundary conditions linked to the hierarchical formation scenario. Disks galaxies are modeled locally within growing cold dark matter halos and…

Astrophysics · Physics 2007-05-23 V. Avila-Reese , C. Firmani

The kinematics of newly-formed star clusters are interesting both as a probe of the state of the gas clouds from which the stars form, and because they influence planet formation, stellar mass segregation, cluster disruption, and other…

Solar and Stellar Astrophysics · Physics 2014-11-20 S. S. R. Offner , C. E. Hansen , M. R. Krumholz

More and more observations indicate that young star clusters could retain imprints of their formation process. In particular, the degree of substructuring and rotation are possibly the direct result of the collapse of the parent molecular…

Astrophysics of Galaxies · Physics 2020-06-17 Alessandro Ballone , Michela Mapelli , Ugo N. Di Carlo , Stefano Torniamenti , Mario Spera , Sara Rastello

We present a simple set of kinematic criteria that can distinguish between galaxies dominated by ordered rotational motion and those involved in major merger events. Our criteria are based on the dynamics of the warm ionized gas (as traced…

The MUSE TIMER Survey has obtained high signal and high spatial resolution integral-field spectroscopy data of the inner $\sim6\times6$ kpc of 21 nearby massive disc galaxies. This allows studies of the stellar kinematics of the central…

Astrophysics of Galaxies · Physics 2020-05-20 Dimitri A. Gadotti , Adrian Bittner , Jesus Falcón-Barroso , Jairo Méndez-Abreu , the TIMER team

We use N-body/hydrodynamic simulations to study the evolution of the spin of a Milky Way-like galaxy through interactions. We perform a controlled experiment of co-planner galaxy-galaxy encounters and study the evolution of disk spins of…

Astrophysics of Galaxies · Physics 2021-04-02 Jeong-Sun Hwang , Changbom Park , Soo-hyeon Nam , Haeun Chung

We present cosmological zoom-in hydro-dynamical simulations for the formation of disc galaxies, implementing dust evolution and dust promoted cooling of hot gas. We couple an improved version of our previous treatment of dust evolution,…

We investigate early, $z > 3$, galaxy formation in a cosmological zoom-in simulation of a close, early-forming Milky Way (MW) analog extracted from TNG50 simulation and resimulated with detailed modeling of cold interstellar medium (ISM)…

Astrophysics of Galaxies · Physics 2025-08-05 Vadim A. Semenov , Charlie Conroy , Aaron Smith , Ewald Puchwein , Lars Hernquist