Results 31 to 40 of about 164,968 (341)

Early dynamical evolution of star cluster systems [PDF]

open access: yes, 2009
Violent relaxation -- the protocluster dynamical response to the expulsion of its residual star forming gas -- is a short albeit crucial episode in the evolution of star clusters and star cluster systems. Because it is heavily driven by cluster formation
Geneviève Parmentier   +4 more
core   +1 more source

The stellar content of the super star clusters in NGC 1569 [PDF]

open access: yes, 2001
We discuss HST FOS ultraviolet spectroscopy and NICMOS near-infrared photometry of four young super star clusters in the central region of the irregular starburst galaxy NGC 1569. The new observations coupled with previous HST WFPC2 photometry and ground-
Alessandra Aloisi   +17 more
core   +2 more sources

The young Galactic star cluster [DBS2003] 179 [PDF]

open access: yesAstronomy & Astrophysics, 2008
Recent near- and mid-infrared surveys have brought evidence that the Milky Way continues to form massive clusters. We carry out a program to determine the basic physical properties of the new massive cluster candidate [DBS2003]179. Medium-resolution K-band spectra and deep near-infrared images of [DBS2003]179 were used to derive the spectral types of ...
L. Georgiev   +6 more
openaire   +10 more sources

A Tale of Three Dwarfs: No Extreme Cluster Formation in Extreme Star-forming Galaxies

open access: yesThe Astrophysical Journal, 2023
Nearly all current simulations predict that outcomes of the star formation process, such as the fraction of stars that form in bound clusters (Γ), depend on the intensity of star formation activity (Σ _SFR ) in the host galaxy.
Rupali Chandar   +10 more
doaj   +1 more source

Variability of young massive stars in the Arches cluster [PDF]

open access: yesProceedings of the International Astronomical Union, 2010
AbstractWe present preliminary results of the first near-infrared variability study of the Arches cluster, using adaptive optics data from NIRI/Gemini and NACO/VLT. The goal is to discover eclipsing binaries in this young (2.5 ± 0.5 Myr), dense, massive cluster for which we will determine accurate fundamental parameters with subsequent spectroscopy ...
Markakis   +5 more
openaire   +5 more sources

On the origin of the red excess in very young super star clusters: the case of SBS 0335-052E [PDF]

open access: yes, 2010
The spectral energy distribution analysis of very young unresolved star clusters challenges our understanding of the cluster formation process. Studies of resolved massive clusters in the Milky Way and in the nearby Magellanic Clouds show us that the ...
Adamo, Angela   +3 more
core   +1 more source

The X-Ray Binary-star Cluster Connection in Late-type Galaxies

open access: yesThe Astrophysical Journal, 2023
We conduct one of the largest systematic investigations of bright X-ray binaries (XRBs) in both young star clusters and ancient globular clusters (GCs) using a sample of six nearby star-forming galaxies.
Qiana Hunt   +5 more
doaj   +1 more source

The young star cluster system of the Antennae galaxies [PDF]

open access: yesAstrophysics and Space Science, 2009
The study of young star cluster (YSC) systems, preferentially in starburst and merging galaxies, has seen great interest in the recent past, as it provides important input to models of star formation. However, even some basic properties (like the luminosity function [LF]) of YSC systems are still under debate.
Peter Anders   +3 more
openaire   +5 more sources

The initial properties of young star clusters in M83 [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 2020
ABSTRACT The initial sizes and masses of massive star clusters provide information about the cluster formation process and also determine how cluster populations are modified and destroyed, which have implications for using clusters as tracers of galaxy assembly.
Jeremy J Webb, Alison Sills
openaire   +2 more sources

From the Top Down and Back Up Again: Star Cluster Structure from Hierarchical Star Formation [PDF]

open access: yes, 2018
Young massive star clusters spanning $\sim 10^4 - 10^8 M_\odot$ in mass have been observed to have similar surface brightness profiles. Recent hydrodynamical simulations of star cluster formation have also produced star clusters with this structure.
Boylan-Kolchin, Michael   +6 more
core   +2 more sources

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