Results 41 to 50 of about 288,605 (224)

Young Massive Clusters [PDF]

open access: yesProceedings of the International Astronomical Union, 2007
AbstractOver the past ten years, there has been a revolution in our understanding of massive young stellar clusters in the Galaxy. Initially, there were no known examples having masses >104, yet we now know that there are at least a half dozen such clusters in the Galaxy.
openaire   +2 more sources

Massive stars in young VVV clusters [PDF]

open access: yesProceedings of the International Astronomical Union, 2016
The role of massive stars in the Galactic evolution is crucial. During their lifetime these stars change the kinematics around them through stellar winds, affect the formation of new stars, ionise and chemically enrich the media with the final supernova explosion. But the census of both massive stars and their host clusters is still poor.
S. Ramírez Alegría   +2 more
openaire   +1 more source

Discovery of Extended Main-sequence Turnoffs in Four Young Massive Clusters in the Magellanic Clouds [PDF]

open access: yes, 2017
An increasing number of young massive clusters (YMCs) in the Magellanic Clouds have been found to exhibit bimodal or extended main sequences (MSs) in their color–magnitude diagrams (CMDs).
Chengyuan Li   +3 more
semanticscholar   +1 more source

Infrared photometry of Young Massive Clusters in the starburst galaxy NGC 4214 [PDF]

open access: yes, 2013
We present the results of an infrared photometric survey performed with NICS@TNG in the nearby starburst galaxy NGC 4214. We derived accurate integrated JK magnitudes of 10 young massive clusters and compared them with the already available Hubble Space ...
Bragaglia, A.   +4 more
core   +1 more source

Chemical abundances of two extragalactic young massive clusters [PDF]

open access: yes, 2017
We use integrated-light spectroscopic observations to measure metallicities and chemical abundances for two extragalactic young massive star clusters (NGC1313-379 and NGC1705-1).
S. Hernandez   +3 more
semanticscholar   +1 more source

THE EVOLUTIONARY TRACKS OF YOUNG MASSIVE STAR CLUSTERS [PDF]

open access: yesThe Astrophysical Journal, 2014
Stars mostly form in groups consisting of a few dozen to several ten thousand members. For 30 years, theoretical models provide a basic concept of how such star clusters form and develop: they originate from the gas and dust of collapsing molecular clouds.
S. Pfalzner   +4 more
openaire   +2 more sources

Metallicities of Young Massive Clusters in NGC 5236 (M83) [PDF]

open access: yes, 2017
We present integrated-light spectra of 8 Young Massive Clusters (YMCs) in the metal-rich spiral galaxy NGC 5236 (M 83). The observations were taken with the X-Shooter spectrograph on the ESO Very Large Telescope. Through the use of theoretical isochrones
S. Hernandez   +4 more
semanticscholar   +1 more source

Evidence for the Strong Effect of Gas Removal on the Internal Dynamics of Young Stellar Clusters [PDF]

open access: yes, 2006
We present detailed luminosity profiles of the young massive clusters M82-F, NGC 1569-A, and NGC 1705-1 which show significant departures from equilibrium (King and EFF) profiles.
Kroupa, N. Bastian, S. P. Goodwin
core   +2 more sources

Is the massive young cluster Westerlund I bound? [PDF]

open access: yesAstronomy & Astrophysics, 2012
8 pages, 6 figures, accepted by A&A; Corrected mass estimate quoted from Negueruela et al. (2010)
Cottaar M.   +3 more
openaire   +3 more sources

Stellar-mass black holes in young massive and open stellar clusters – IV. Updated stellar-evolutionary and black hole spin models and comparisons with the LIGO-Virgo O1/O2 merger-event data [PDF]

open access: yesMonthly notices of the Royal Astronomical Society, 2020
I present a set of long-term, direct, relativistic many-body computations of model dense stellar clusters with up-to-date stellar-evolutionary, supernova (SN), and remnant natal-kick models, including pair instability and pulsation pair instability ...
S. Banerjee
semanticscholar   +1 more source

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