Results 11 to 20 of about 4,256,396 (290)

Young star clusters in nearby molecular clouds [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 2018
Accepted for publication in MNRAS (on February 19, 2018); 30 pages, 14 figures, and 8 ...
K V Getman   +5 more
core   +11 more sources

Stochasticity in Star Clusters: Reduced Random Sampling Method

open access: yesOpen Astronomy, 2014
This paper aims to contribute to the debate taking place nowadays on the two extreme schemes of sampling the stellar masses within star clusters, known as Optimal Sampling and Random Sampling.
de Meulenaer P.   +3 more
doaj   +3 more sources

Clustering Properties of Intermediate and High-mass Young Stellar Objects

open access: yesThe Astronomical Journal, 2023
We have selected 337 intermediate- and high-mass young stellar objects (YSOs; 1.5–20 M _⊙ ) well-characterized with spectroscopy. By means of the clustering algorithm HDBSCAN, we study their clustering and association properties in the Gaia DR3 catalog ...
Miguel Vioque   +8 more
doaj   +1 more source

Multi-Color Observations of Young Star Clusters [PDF]

open access: yesHighlights of Astronomy, 2005
AbstractWe present a new set of evolutionary synthesis models of our GALEV code, specifically developed to include the gaseous emission of presently forming star clusters, in combination with an advanced tool to compare large model grids with multi-color broad-band observations of YSC systems. Tests and first applications are presented.
Anders, Peter   +2 more
openaire   +3 more sources

Young Star Clusters in M 31 [PDF]

open access: yes, 2008
In our study of M31's globular cluster system with MMT/Hectospec, we have obtained high-quality spectra of 85 clusters with ages less than 1 Gyr. With the exception of Hubble V, the young cluster in NGC 205, we find that these young clusters have kinematics and spatial distribution consistent with membership in M31's young disk.
Morrison, Heather   +5 more
openaire   +2 more sources

JWST/NIRCam Probes Young Star Clusters in the Reionization Era Sunrise Arc

open access: yesThe Astrophysical Journal, 2023
Star cluster formation in the early universe and its contribution to reionization remains largely unconstrained to date. Here we present JWST/NIRCam imaging of the most highly magnified galaxy known at z ∼ 6, the Sunrise arc.
Eros Vanzella   +29 more
doaj   +1 more source

PHANGS: constraining star formation time-scales using the spatial correlations of star clusters and giant molecular clouds

open access: yes, 2023
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.
core   +1 more source

PHANGS–JWST First Results: Dust-embedded Star Clusters in NGC 7496 Selected via 3.3 μm PAH Emission

open access: yesThe Astrophysical Journal Letters, 2023
The earliest stages of star formation occur enshrouded in dust and are not observable in the optical. Here we leverage the extraordinary new high-resolution infrared imaging from JWST to begin the study of dust-embedded star clusters in nearby galaxies ...
M. Jimena Rodríguez   +40 more
doaj   +1 more source

The structure of young star clusters [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 1999
We analyse and compare the clustering of young stars in Chamaeleon I and Taurus. We compute the mean surface-density of companion stars \bar{N} as a function of angular displacement θfrom each star. We then fit \bar{N}(θ) with two simultaneous power laws.
Gladwin, P. P.   +3 more
openaire   +2 more sources

New Candidate Massive Clusters from 2MASS [PDF]

open access: yes, 2013
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
core   +1 more source

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