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相关论文: The Initial Properties of Young Star Clusters in M…

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Both simulations and observations indicate that stars form in filamentary, hierarchically clustered associations, most of which disperse into their galactic field once feedback destroys their parent clouds. However, during their early…

地球与行星天体物理 · 物理学 2015-06-15 Jonathan M. Craig , Mark R. Krumholz

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…

星系天体物理 · 物理学 2019-05-21 Hui Li , Oleg Y. Gnedin

Young massive clusters (YMCs) are usually accompanied by lower-mass clusters and unbound stars with a total mass equal to several tens times the mass of the YMC. If this was also true when globular clusters (GCs) formed, then their cosmic…

星系天体物理 · 物理学 2018-12-26 Bruce G. Elmegreen

We study the evolution and observability of young, compact star clusters near the Galactic center, such as the Arches and Quintuplet systems. The clusters are modeled by integrating the equations of motion of all stars while accounting for…

天体物理学 · 物理学 2009-11-06 Simon Portegies Zwart , Junichiro Makino , Stephen McMillan , Piet Hut

The clusters of young stars in massive star-forming regions show a wide range of sizes, morphologies, and numbers of stars. Their highly subclustered structures are revealed by the MYStIX project's sample of 31,754 young stars in nearby…

We investigate the long-term dynamical evolution of star clusters in a steady tidal field produced by its parent galaxy. In this paper, we focus on the influence of mass profile of the parent galaxy. The previous studies were done with the…

星系天体物理 · 物理学 2015-05-18 Ataru Tanikawa , Toshiyuki Fukushige

We investigate the early evolution of two distinct populations of low-mass stars in globular clusters under the influence of primordial gas expulsion driven by supernovae to study if this process can increase the fraction of second…

星系天体物理 · 物理学 2015-05-18 T. Decressin , H. Baumgardt , C. Charbonnel , P. Kroupa

Star cluster formation is a major mode of star formation in the extreme conditions of interacting galaxies and violent starbursts. Young clusters are observed to form in a variety of such galaxies, a substantial number resembling the…

天体物理学 · 物理学 2007-05-23 P. Anders , U. Fritze--v. Alvensleben , R. de Grijs

Central cluster galaxies are the largest and most massive galaxies in the Universe. Although they host very old stellar populations, several studies found the existence of blue cores in some BCGs indicating ongoing star formation. We…

星系天体物理 · 物理学 2020-11-25 Núria Salvador-Rusiñol , Michael. A. Beasley , Alexandre Vazdekis , Francesco La Barbera

Over the past ten years, there has been a revolution in our understanding of massive young stellar clusters in the Galaxy. Initially, there were no known examples having masses $>10^4$, yet we now know that there are at least a half dozen…

天体物理学 · 物理学 2009-11-13 Donald F. Figer

Studies of extra-galactic globular clusters have shown that the peak size of the globular cluster (GC) radius distribution (RD) depends only weakly on galactic environment, and can be used as a standard ruler. We model RDs of GC populations…

星系天体物理 · 物理学 2015-06-15 Poul E. R. Alexander , Mark Gieles

Using high-resolution, multiple-passband Hubble Space Telescope images spanning the entire optical/near-infrared wavelength range, we obtained a statistically complete sample, $U$-band selected sample of 846 extended star clusters across…

星系天体物理 · 物理学 2015-06-23 Shuo Li , Richard de Grijs , Peter Anders , Chengyuan Li

We present new GRIFFIN project hydrodynamical simulations that model the formation of galactic star cluster populations in low-metallicity ($Z=0.00021$) dwarf galaxies, including radiation, supernova and stellar wind feedback of individual…

We investigate the integrated properties of massive (>10 Msun), rotating, single-star stellar populations for a variety of initial rotation rates (v/vcrit=0.0, 0.2, 0.4, 0.5, and 0.6). We couple the new MESA Isochrone and Stellar Tracks…

太阳与恒星天体物理 · 物理学 2017-04-12 Jieun Choi , Charlie Conroy , Nell Byler

Observations of globular clusters show that they have universal lognormal mass functions with a characteristic peak at $\sim 2\times 10^{5}\, {\rm{M_{\odot}}}$, but the origin of this peaked distribution is highly debated. Here we…

星系天体物理 · 物理学 2017-08-02 Moupiya Maji , Qirong Zhu , Yuexing Li , Jane Charlton , Lars Hernquist , Alexander Knebe

We have studied the long-term evolution of star clusters of the solar neighborhood, starting from their birth in gaseous clumps until their complete dissolution in the Galactic tidal field. We have combined the "local-density-driven cluster…

星系天体物理 · 物理学 2018-08-29 Bekdaulet Shukirgaliyev , Genevieve Parmentier , Andreas Just , Peter Berczik

Star clusters are key components of galaxies, and the relationship between cluster radius and mass encodes information about cluster formation and evolution. Theoretical models predict that age and specific star formation rate (sSFR) should…

星系天体物理 · 物理学 2026-02-03 Michelle Sebastian

At which masses does the regime of globular clusters end and the one of dwarf galaxies begin? And what separates these two classes of hot stellar systems? We examine to what extend very massive (>10^7 Mo) young star clusters are similar to…

天体物理学 · 物理学 2009-11-11 Markus Kissler-Patig , Andres Jordan , Nate Bastian

Observations indicate blue globular clusters have half-light radii systematically larger than those of red globular clusters. In this paper, we test whether the different metallicity-dependent stellar evolution timescales and mass-loss…

星系天体物理 · 物理学 2012-07-26 Rafael Schulman , Evert Glebbeek , Alison Sills

Observations of the dust and gas around embedded stellar clusters reveal some of the processes involved in their formation and evolution. Large scale mass infall with rates dM/dt=4e-4 solar masses/year is found to be disrupted on small…

天体物理学 · 物理学 2015-06-24 Jonathan Williams
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