Results 21 to 30 of about 1,296,799 (301)
Probing the Faintest Stars in a Globular Star Cluster [PDF]
NGC 6397 is the second closest globular star cluster to the Sun. Using 5 days of time on the Hubble Space Telescope, we have constructed an ultradeep color-magnitude diagram for this cluster. We see a clear truncation in each of its two major stellar sequences.
Richer, Harvey B. +12 more
openaire +4 more sources
In the hierarchical view of star formation, giant molecular clouds (GMCs) undergo fragmentation to form small-scale structures made up of stars and star clusters.
Turner, Jordan A;Dale, Daniel A;Lilly, James;..., Hsi-An Pan et al.
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Young, Massive Star Clusters in the Antennae [PDF]
While massive star clusters have been detected in almost every galaxy with appreciable star formation, they are most prevalent in interacting and merging galaxies. As many as 95% of these clusters will ultimately be disrupted, often in the first 10 Myr,
Christopher, Micol Huw
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Old star clusters in the FSR catalogue [PDF]
We investigate the old star clusters in the sample of cluster candidates from the Froebrich, Scholz & Raftery (FSR) list. Based on photometry from the Two-Micron All-Sky Survey, we generated decontaminated colour-magnitude and colour-colour diagrams ...
S. Schmeja +7 more
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The Role of Binarity and Stellar Rotation in the Split Main Sequence of NGC 2422
In addition to the extended main-sequence turnoffs widely found in young and intermediate-age (∼600 Myr to 2 Gyr old) star clusters, some younger clusters even exhibit split main sequences (MSs).
Chenyu He +10 more
doaj +1 more source
New Candidate Massive Clusters from 2MASS [PDF]
Massive stars are important for the evolution of the interstellar medium. The detailed study of their properties (such as mass loss, rotation, magnetic fields) is enormously facilitated by samples of these objects in young massive galactic star clusters.
Dirk Froebrich, Froebrich, Dirk
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Star cluster ecology -- IV. Dissection of an open star cluster: photometry [PDF]
reduced abstract, 33 pages (three separate color .jpg figures), submitted to ...
Portegies Zwart, S.F. +3 more
openaire +4 more sources
Dynamical Mass Estimates for Two Luminous Star Clusters in Galactic Merger Remnants [PDF]
We present high-dispersion spectra of two extremely massive star clusters in galactic merger remnants, obtained using the UVES spectrograph mounted on the ESO Very Large Telescope.
Schweizer, F. +26 more
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Star cluster ecology – V. Dissection of an open star cluster: spectroscopy [PDF]
17 pages, submitted to ...
Portegies Zwart, S.F. +3 more
openaire +4 more sources
AbstractThe centers of most galaxies in the local Universe are occupied by compact, barely resolved sources. Based on their structural properties, position in the Fundamental Plane, and integrated spectra, these sources clearly have a stellar origin. They are therefore called ‘nuclear star clusters’ (NCs) or ‘stellar nuclei’.
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