Results 71 to 80 of about 106,016 (255)
The bound fraction of young star clusters [PDF]
, 2016 Context. The residual gas within newly formed star clusters is expelled through stellar feedback on timescales ≲ 1 Myr. The subsequent expansion of the cluster results in an unbinding of a fraction of stars, before the remaining cluster members can re ...
Nina Brinkmann +3 more
semanticscholar +1 more source
Massive Star Cluster Formation with Binaries. I. Evolution of Binary Populations
The Astrophysical JournalWe study the evolution of populations of binary stars within massive cluster-forming regions. We simulate the formation of young massive star clusters within giant molecular clouds with masses ranging from 2 × 10 ^4 to 3.2 × 10 ^5 M _⊙ .
Claude Cournoyer-Cloutier +9 more
doaj +1 more source
The Astrophysical JournalYoung massive clusters (YMCs) are dense aggregates of young stars and are often speculated as potential precursors to globular clusters. However, the formation mechanism of massive and compact gas clumps that precede YMCs remains unknown.
Ryunosuke Maeda +4 more
doaj +1 more source
$\mathcal {Q}^{+}$: characterizing the structure of young star clusters [PDF]
, 2016 Many young star clusters appear to be fractal, i.e. they appear to be concentrated in a nested hierarchy of clusters within clusters. We present a new algorithm for statistically analysing the distribution of stars to quantify the level of sub-structure.
S. E. Jaffa, A. Whitworth, O. Lomax
semanticscholar +1 more source
Young massive star clusters in M51 [PDF]
Monthly Notices of the Royal Astronomical Society, 2002 A search for young massive star clusters (YMCs) in the nearby face-on spiral galaxy M51 (NGC 5194) has been carried out using UBV CCD images from the prime focus camera on the Lick 3 meter Shane telescope. The YMC population is found to be quite rich with a specific U-band luminosity T_L(U) = 1.4, consistent with the high current star formation rate of
openaire +3 more sources
VLA 22 GHz Imaging of Massive Star Formation in Local Wolf–Rayet Galaxies
The Astrophysical JournalWe present 22 GHz imaging of regions of massive star formation within the Local Wolf–Rayet Galaxy Sample, a NSF Karl G. Jansky Very Large Array survey of 30 local galaxies showing spectral features of Wolf–Rayet (WR) stars.
Nicholas G. Ferraro +6 more
doaj +1 more source
JWST Observations of Starbursts: Massive Star Clusters in the Central Starburst of M82
The Astrophysical Journal LettersWe present a near-infrared (NIR) candidate star cluster catalog for the central kiloparsec of M82 based on new JWST NIRCam images. We identify star cluster candidates using the F250M filter, finding 1357 star cluster candidates with stellar masses >10 ^4
Rebecca C. Levy +27 more
doaj +1 more source
Stochasticity in Star Clusters: Reduced Random Sampling Method
Open 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 +1 more source
The Astrophysical JournalAge-benchmark brown dwarf and planetary-mass-object spectroscopy is key to characterizing substellar evolution. In this paper, we present the JHK medium-resolution ( R ∼ 3000) spectra of 25 7–76 M _Jup (spectral types L3.0–M6.0) brown dwarfs and ...
Elena Manjavacas +5 more
doaj +1 more source
Is Earendel a Star Cluster?: Metal-poor Globular Cluster Progenitors at z ∼ 6
The Astrophysical Journal LettersThe strongly lensed z ∼ 6 Sunrise galaxy offers an incredible opportunity to investigate star formation in the early Universe on parsec or smaller scales.
Massimo Pascale +3 more
doaj +1 more source