Results 91 to 100 of about 288,605 (224)

Stellar-mass black holes in young massive and open stellar clusters and their role in gravitational-wave generation III: dissecting black hole dynamics [PDF]

open access: yesMonthly notices of the Royal Astronomical Society, 2018
Stellar-remnant black holes (BH) in dense stellar clusters comprise a natural setup to trigger general-relativistic (GR) inspiral and merger of binary black holes (BBH), detectable by the LISA and the LIGO-Virgo, through dynamical encounters inside such ...
S. Banerjee
semanticscholar   +1 more source

VLA 22 GHz Imaging of Massive Star Formation in Local Wolf–Rayet Galaxies

open access: yesThe Astrophysical Journal
We 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

Dynamics of massive stellar black holes in young star clusters and the displacement of ultra-luminous X-ray sources

open access: yes, 2011
In low-metallicity environments, massive stars might avoid supernova explosion and directly collapse, forming massive (~25-80 solar masses) stellar black holes (MSBHs), at the end of their life.
Begelman   +73 more
core   +1 more source

Constraining globular cluster formation through studies of young massive clusters – IV. Testing the fast rotating massive star scenario [PDF]

open access: yes, 2014
One of the leading models for the formation of multiple stellar populations within globular clusters is the "Fast Rotating Massive Star" (FRMS) scenario, where the ejecta of rapidly rotating massive stars is mixed with primordial material left over from ...
N. Bastian   +2 more
semanticscholar   +1 more source

Between the Cosmic-Ray “Knee” and the “Ankle”: Contribution from Star Clusters

open access: yesThe Astrophysical Journal
We show that massive, young star clusters may be possible candidates that can accelerate Galactic cosmic rays (CRs) in the range of 10 ^7 –10 ^9 GeV (between the “knee” and “ankle”).
Sourav Bhadra   +3 more
doaj   +1 more source

Young massive star clusters: globular cluster progenitors?

open access: yes, 2007
I review the long-term survival chances of young massive star clusters (YMCs), hallmarks of intense starburst episodes often associated with violent galaxy interactions. In particular, I address the key question as to whether at least some of these YMCs can be considered proto-globular clusters (GCs).
openaire   +2 more sources

Constraining globular cluster formation through studies of young massive clusters - III. A lack of gas and dust in massive stellar clusters in the LMC and SMC [PDF]

open access: yes, 2014
Scenarios that invoke multiple episodes of star formation within young globular clusters (GCs) to explain the observed chemical and photometric anomalies in GCs, require that clusters can retain the stellar ejecta of the stars within them and accrete ...
N. Bastian, J. Strader
semanticscholar   +1 more source

Feedback in the Antennae Galaxies (NGC 4038/9): I. High-Resolution Infrared Spectroscopy of Winds from Super Star Clusters

open access: yes, 2007
We present high-resolution (R ~ 24,600) near-IR spectroscopy of the youngest super star clusters (SSCs) in the prototypical starburst merger, the Antennae Galaxies.
Amram P.   +16 more
core   +1 more source

The Size Distribution of Massive Young Clusters [PDF]

open access: yesSymposium - International Astronomical Union, 2002
We have searched the WFPC2/HST archive for data on nearby massive young clusters with low extinction and we have analyzed 27 such objects. A clear dichotomy between objects with a compact core and without it is observed. We attribute this bimodality to the initial conditions of the parent giant molecular clouds and we discuss its implication towards ...
openaire   +1 more source

The Star Clusters as Links between Galaxy Evolution and Star Formation Project. I. Numerical Method

open access: yesThe Astrophysical Journal
Stellar clusters are critical constituents within galaxies: They are the result of highest-density star formation, and through their spatially and temporally correlated feedback, they regulate their host galaxy evolution.
Marta Reina-Campos   +3 more
doaj   +1 more source

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