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In previous papers of this series, we developed a new algorithm for modeling the formation of star clusters in galaxy formation simulations. Here we investigate how dissolution of bound star clusters affects the shape of the cluster mass…

Astrophysics of Galaxies · Physics 2019-05-21 Hui Li , Oleg Y. Gnedin

We present a simple analytical description of the disruption of star clusters in a tidal field, which agrees excellently with detailed N-body simulations. The analytic expression can be used to predict the mass and age histograms of…

We present direct $N$-body simulations of tidally filling 30,000 ${\rm M}_\odot$ star clusters orbiting between 10 kpc and 100 kpc in galaxies with a range of dark matter substructure properties. The time-dependent tidal force is determined…

Astrophysics of Galaxies · Physics 2019-08-21 Jeremy J. Webb , Jo Bovy , Raymond G. Carlberg , Mark Gieles

In a series of three papers, we introduced a novel cluster formation model that describes the formation, growth, and disruption of star clusters in high-resolution cosmological simulations. We tested this model on a Milky Way-sized galaxy…

Astrophysics of Galaxies · Physics 2020-03-18 Hui Li , Oleg Gnedin

We present N-body simulations of star clusters that initially evolve within a strong compressive tidal field and then transition into extensive tidal fields of varying strengths. While subject to compressive tides, clusters can undergo…

Solar and Stellar Astrophysics · Physics 2017-04-12 Jeremy J. Webb , Saahil S. Patel , Enrico Vesperini

We perform the first magnetohydrodynamical simulations of tidal disruptions of stars by supermassive black holes. We consider stars with both tangled and ordered magnetic fields, for both grazing and deeply disruptive encounters. When the…

High Energy Astrophysical Phenomena · Physics 2017-01-18 James Guillochon , Michael McCourt

We study the tidal evolution of galaxies in the most massive cluster of the IllustrisTNG-100 simulation. For the purpose of this work we select 112 galaxies with the largest stellar masses at present and follow their properties in time.…

Astrophysics of Galaxies · Physics 2020-07-01 Ewa L. Lokas

In interacting galaxies, strong tidal forces disturb the global morphology of the progenitors and give birth to the long stellar, gaseous and dusty tails often observed. In addition to this destructive effect, tidal forces can morph into a…

Cosmology and Nongalactic Astrophysics · Physics 2010-08-03 Florent Renaud

We present N-body simulations of realistic globular clusters containing initial mass function in the galaxy to study effects of tidal field systematically on the properties of outer parts of globular clusters. Using NBODY6 which takes into…

Astrophysics · Physics 2009-11-10 Kang Hwan Lee , Hyung Mok Lee , Hwankyung Sung

Tidal forces acting on galaxies in clusters lead to a strong dynamical evolution. In order to quantify the amount of evolution, I run self-consistent N-body simulations of disk galaxies for a variety of models in the hierarchically forming…

Astrophysics · Physics 2008-11-26 Oleg Y. Gnedin

The tidal field of galaxies is known generally to be disruptive. However, in the case of galaxy mergers, a compressive mode of tidal wave may develop and last long enough to cocoon the formation of star clusters. Using an N-body simulation…

Astrophysics · Physics 2009-11-13 Florent Renaud , Christian Theis , Christian M. Boily

(Abridged) Interacting galaxies are well-known for their high star formation rates and rich star cluster populations, but the rapidly changing tidal field can also efficiently destroy clusters. We use numerical simulations of merging disc…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-03 J. M. Diederik Kruijssen , F. Inti Pelupessy , Henny J. G. L. M. Lamers , Simon F. Portegies Zwart , Nate Bastian , Vincent Icke

High-redshift clusters of galaxies show an over-abundance of spirals by a factor of 2-3, and the corresponding under-abundance of S0 galaxies, relative to the nearby clusters. This morphological evolution can be explained by tidal…

Astrophysics · Physics 2015-06-24 Oleg Y. Gnedin

The orbital decay and tidal disruption of a star cluster in a galaxy is studied in an analytical manner. Owing to dynamical friction, the star cluster spirals in toward the center of the galaxy. Simultaneously, the galactic tidal field…

Astrophysics · Physics 2009-11-07 H. Mouri , Y. Taniguchi

Generally, merger likelihood increases in denser environments; however, the large relative velocities at the centres of dense clusters are expected to reduce the likelihood of mergers for satellite galaxies. Tidal features probe the recent…

In a sample of 54 galaxy clusters (0.04<z<0.15) containing 3551 early-type galaxies suitable for study, we identify those with tidal features both interactively and automatically. We find that ~3% have tidal features that can be detected…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-11 Scott M. Adams , Dennis Zaritsky , David J. Sand , Melissa Graham , Chris Bildfell , Henk Hoekstra , Chris Pritchet

Recent observations of galaxy mergers inside galaxy cluster environments report high star formation rates in the ejected tidal tails, which point towards currently developing tidal dwarf galaxies. We test whether these dwarf objects could…

Astrophysics of Galaxies · Physics 2024-07-03 Anna Ivleva , Rhea-Silvia Remus , Lucas M. Valenzuela , Klaus Dolag

We report results of a large set of N-body calculations aimed to study the evolution of multi-mass star clusters in external tidal fields. Our clusters start with the same initial mass-functions, but varying particle numbers, orbital types…

Astrophysics · Physics 2009-11-07 Holger Baumgardt , Junichiro Makino

We study the impact of the tidal field on the survivability of star clusters following instantaneous gas expulsion. Our model clusters are formed with a centrally-peaked star-formation efficiency profile as a result of star-formation taking…

Astrophysics of Galaxies · Physics 2019-04-10 B. Shukirgaliyev , G. Parmentier , P. Berczik , A. Just

We study the evolution of star clusters in the Galactic tidal field starting from their birth in molecular clumps. Our model clusters form according to the local-density-driven cluster formation model in which the stellar density profile is…

Astrophysics of Galaxies · Physics 2020-03-18 Bekdaulet Shukirgaliyev , Genevieve Parmentier , Peter Berczik , Andreas Just
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