English
Related papers

Related papers: The impact of metallicity and dynamics on the evol…

200 papers

The angular momentum evolution of stars is crucial for understanding the formation and evolution of stars and star clusters. Using high-resolution magnetohydrodynamical (MHD) simulations of star formation in clouds with different physical…

Solar and Stellar Astrophysics · Physics 2025-11-12 Giacomo Cordoni , Sajay Sunny Mathew , Christoph Federrath

We investigate the dynamical evolution of isolated equal-mass star cluster models by means of direct N-body simulations, primarily focusing on the effects of the presence of primordial anisotropy in the velocity space. We found evidence of…

Astrophysics of Galaxies · Physics 2017-08-16 Philip G. Breen , Anna Lisa Varri , Douglas C. Heggie

The rotational evolution of a young stellar population can give informations about the rotation pattern of more evolved clusters. Combined with rotational period values of thousands of young stars and theoretical propositions about the…

Solar and Stellar Astrophysics · Physics 2021-11-18 Maria Jaqueline Vasconcelos , Jérôme Bouvier , Florian Gallet , Edson A. Luz Filho

This review summarises the main properties of Young Massive Clusters (YMCs), including their population properties, particularly focusing on extragalactic cluster samples. We discuss potential biases and caveats that can affect the…

Astrophysics of Galaxies · Physics 2016-11-23 Nate Bastian

In addition to being spectacular objects, Very Massive Stars (VMS) are suspected to have a tremendous impact on their environment and on the whole cosmic evolution. The nucleosynthesis both during their advanced stages and their final…

Solar and Stellar Astrophysics · Physics 2023-12-06 S. Martinet , G. Meynet , S. Ekström , C. Georgy , R. Hirschi

Abundance analyses of stars with planets have revealed that their metallicities are enhanced relative to field stars. Such a trend was originally suggested to be due to accretion of iron-rich planetary material. Based on this assumption, we…

Astrophysics · Physics 2009-11-10 Ann Marie Cody , Dimitar Sasselov

We analyze the physical properties of stellar clusters that are detected in massive star-forming regions in the MYStIX project--a comparative, multiwavelength study of young stellar clusters within 3.6 kpc that contain at least one O-type…

Observations of galaxies in the local Universe have shown that both the ionized gas and the stars of satellites are more metal-rich than of equally massive centrals. To gain insight into the connection between this metallicity enhancement…

We study the degree of angular substructure in the stellar position distribution of young members of Galactic star-forming regions, looking for correlations with distance from cluster center, surface number density of stars, and local…

Astrophysics of Galaxies · Physics 2015-06-23 Karl O. Jaehnig , Nicola Da Rio , Jonathan C. Tan

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 describe the interplay between stellar evolution and dynamical mass loss of evolving star clusters, based on the principles of stellar evolution and cluster dynamics and on a grid of N-body simulations of cluster models. The cluster…

Astrophysics of Galaxies · Physics 2015-05-19 Henny J. G. L. M. Lamers , Holger Baumgardt , Mark Gieles

Recent theoretical investigations have suggested that the formation of the very first stars, forming out of metal-free gas, was fundamentally different from the present-day case. In this paper, we study the effect of metallicity on the…

Astrophysics · Physics 2009-11-06 V. Bromm , A. Ferrara , P. S. Coppi , R. B. Larson

Some studies show that there are recent star formations in galaxies including early type galaxies. This suggests that we possibly did not obtain the accurate ages and metallicities of the dominating stellar populations of galaxies from…

Astrophysics · Physics 2007-08-30 Zhongmu Li , Zhanwen Han

Through a suite of direct N-body simulations, we explore how the structural and kinematic evolution of a star cluster located at the center of a dwarf galaxy is affected by the shape of its host's dark matter density profile. The stronger…

Astrophysics of Galaxies · Physics 2018-08-01 Jeremy J. Webb , Enrico Vesperini

We simulate the dynamics of fractal star clusters, in order to investigate the evolution of substructure in recently formed clusters. The velocity dispersion is found to be the key parameter determining the survival of substructure. In…

Astrophysics · Physics 2009-11-10 Simon P. Goodwin , A. P. Whitworth

Star clusters with multi-mass components dynamically evolve faster than those modeled with equal-mass components. Using a series of direct $N$-body simulations, we investigate the dynamical evolution of star clusters with mass functions,…

Astrophysics of Galaxies · Physics 2014-06-09 M. S. Fujii , S. Portegies Zwart

The evolution of star clusters is studied using N-body simulations in which the evolution of single stars and binaries are taken self-consistently into account. Initial conditions are chosen to represent relatively young Galactic open…

The stellar-dynamical evolution of bound star clusters during the first few Myr is dominated by binary-binary and binary-star interactions, the rapid sinking of the most massive stars to the centre of the clusters and mass loss from…

Astrophysics · Physics 2007-05-23 Pavel Kroupa

Observations of the Galactic Centre show evidence of one or two disc-like structures of very young stars orbiting the central super-massive black hole within a distance of a few 0.1 pc. A number of analyses have been carried out to…

Astrophysics of Galaxies · Physics 2015-05-13 Ulf Löckmann , Holger Baumgardt , Pavel Kroupa

The current generation of galaxy simulations can resolve individual giant molecular clouds, the progenitors of dense star clusters. But the evolutionary fate of these young massive clusters, and whether they can become the old globular…

‹ Prev 1 4 5 6 7 8 10 Next ›