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Related papers: Star cluster evolution in barred disc galaxies. I.…

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In our current interpretation of the hierarchical structure of the universe it is well established that galaxies collide and merge with each other during their lifetime. If massive black holes (MBHs) reside in galactic centres, we expect…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-12 Pau Amaro-Seoane , Patrick Brem , Jorge Cuadra

A number of recent observational studies of Galactic globular clusters have measured the variation in the slope of a cluster's stellar mass function $\alpha$ with clustercentric distance $r$. In order to gather a deeper understanding of the…

Astrophysics of Galaxies · Physics 2016-09-07 Jeremy J. Webb , Enrico Vesperini

We consider the evolution of a binary system interacting due to tidal effects without restriction on the orientation of the orbital, and where significant, spin angular momenta, and orbital eccentricity. We work in the low tidal forcing…

Solar and Stellar Astrophysics · Physics 2020-11-11 P. B. Ivanov , J. C. B. Papaloizou

We have carried out a large set of N-body simulations studying the effect of residual-gas expulsion on the survival rate and final properties of star clusters. We have varied the star formation efficiency, gas expulsion timescale and…

Astrophysics · Physics 2009-11-13 Holger Baumgardt , Pavel Kroupa

Most stars form in a cluster environment. These stars are initially surrounded by discs from which potentially planetary systems form. Of all cluster environments starburst clusters are probably the most hostile for planetary systems in our…

Astrophysics of Galaxies · Physics 2015-06-05 C. Olczak , T. Kaczmarek , S. Harfst , S. Pfalzner , S. Portegies Zwart

Context. As a star evolves, the planet orbits change with time due to tidal interactions, stellar mass losses, friction and gravitational drag forces, mass accretion and evaporation on/by the planet. Stellar rotation modifies the structure…

Earth and Planetary Astrophysics · Physics 2016-06-15 Giovanni Privitera , Georges Meynet , Patrick Eggenberger , Aline A. Vidotto , Eva Villaver , Michele Bianda

A revision of Stod\{'o}{\l}kiewicz's Monte Carlo code is used to simulate evolution of large star clusters. A survey of the evolution of N-body systems influenced by the tidal field of a parent galaxy and by stellar evolution is presented.…

Astrophysics · Physics 2015-06-24 Mirek Giersz

Disk galaxies evolve over time through processes that may rearrange both the radial mass profile and the metallicity distribution within the disk. This review of such slow changes is largely, though not entirely, restricted to…

Astrophysics of Galaxies · Physics 2015-06-17 J. A. Sellwood

We investigate the dynamical evolution of a star cluster in an external tidal field by using N-body simulations, with focus on the effects of the presence or absence of neutron star natal velocity kicks.We show that, even if neutron stars…

Astrophysics of Galaxies · Physics 2015-06-23 Filippo Contenta , Anna Lisa Varri , Douglas C. Heggie

[Abridged] Most exoplanets detected so far are close-in planets, which are likely to be affected by tidal dissipation in their host star. To get a complete picture of the evolution of star-planet systems one needs to consider the impact of…

Solar and Stellar Astrophysics · Physics 2021-07-07 J. Ahuir , S. Mathis , L. Amard

Transiting planets are generally close enough to their host stars that tides may govern their orbital and thermal evolution of these planets. We present calculations of the tidal evolution of recently discovered transiting planets and…

Astrophysics · Physics 2009-11-13 Brian Jackson , Rory Barnes , Richard Greenberg

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

An important issue in the dynamics of neutron star binaries is whether tidal interaction can cause the individual stars to collapse into black holes during inspiral. To understand this issue better, we study the dynamics of a cluster of…

General Relativity and Quantum Cosmology · Physics 2021-10-20 Kashif Alvi , Yuk Tung Liu

Astrophysical fluid bodies that orbit close to one another induce tidal distortions and flows that are subject to dissipative processes. The spin and orbital motions undergo a coupled evolution over astronomical timescales, which is…

Solar and Stellar Astrophysics · Physics 2015-06-19 Gordon I. Ogilvie

We investigate the properties and evolution of star particles in two simulations of isolated spiral galaxies, and two galaxies from cosmological simulations. Unlike previous numerical work, where typically each star particle represents one…

The observed morphological evolution since z ~ 0.5 within galaxy clusters provides evidence for a hierarchical universe. This evolution is driven by dynamical effects that operate within the cluster environment -- suppression of…

Astrophysics · Physics 2007-05-23 Ben Moore , Vicent Quilis , Richard Bower

We present the results of a suite of \Nbody simulations aimed at understanding the fundamental aspects of the long-term evolution of the internal kinematics of multiple stellar populations in globular clusters. Our models enable us to study…

Astrophysics of Galaxies · Physics 2019-07-24 Maria Tiongco , Enrico Vesperini , Anna Lisa Varri

Galactic discs are known to have exponential radial profiles in luminosity and stellar surface density in their bright inner regions. Nonetheless, their faint outer regions often display a break, with either a down-bending or an up-bending…

Astrophysics of Galaxies · Physics 2025-09-24 M. Mondelin , F. Bournaud , J-C. Cuillandre , P. Hennebelle

Angular momentum redistribution within barred galaxies drives their dynamical evolution. Angular momentum is emitted mainly by near-resonant material in the bar region and absorbed by resonant material mainly in the outer disc and in the…

Astrophysics · Physics 2009-11-10 E. Athanassoula

Galaxies inhabiting a cluster environment experience significant evolution in their orbital motions throughout time; this is accompanied by changes in the anisotropy parameter, measuring the relative importance of radial and tangential…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-11 Francesca Iannuzzi , Klaus Dolag