Results 11 to 20 of about 75,652 (263)

Star cluster ecology -- IV. Dissection of an open star cluster: photometry [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 2001
reduced abstract, 33 pages (three separate color .jpg figures), submitted to ...
Portegies Zwart, S.F.   +3 more
openaire   +4 more sources

Star cluster ecology – V. Dissection of an open star cluster: spectroscopy [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 2004
17 pages, submitted to ...
Portegies Zwart, S.F.   +3 more
openaire   +4 more sources

Lithopanspermia in Star-Forming Clusters [PDF]

open access: yesAstrobiology, 2005
This paper considers the lithopanspermia hypothesis in star forming groups and clusters, where the chances of biological material spreading from one solar system to another is greatly enhanced (relative to the field) due to the close proximity of the systems and lower relative velocities. These effects more than compensate for the reduced time spent in
Adams, Fred C., Spergel, David N.
openaire   +4 more sources

Intergalactic stars in the Fornax cluster [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 1997
We have identified ten candidate intergalactic planetary nebulae in the Fornax galaxy cluster. These objects were found during observations in 1992 and 1993 in three fields chosen well away from any Fornax galaxy at 15 arcmin, 30 arcmin, and 45 arcmin from the centre of Fornax.
Theuns, T., Warren, S.J.
openaire   +4 more sources

Molecular Gas Properties in Young Stellar Clusters with a Suppressed Star Cluster Wind

open access: yesThe Astrophysical Journal Letters, 2023
In compact and dense star-forming clouds a global star cluster wind could be suppressed. In this case stellar feedback is unable to expel the leftover gas from the cluster. Young massive stars remain embedded in a dense residual gas and stir it by moving
Sergiy Silich   +3 more
doaj   +1 more source

Star cluster dynamics [PDF]

open access: yesPhilosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, 2010
Dynamical evolution plays a key role in shaping the current properties of star clusters and star cluster systems. A detailed understanding of the effects of evolutionary processes is essential to be able to disentangle the properties that result from dynamical evolution from those imprinted at the time of cluster formation.
openaire   +3 more sources

Nuclear star clusters [PDF]

open access: yesProceedings of the International Astronomical Union, 2009
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’.
openaire   +2 more sources

Massive star and star cluster formation [PDF]

open access: yesProceedings of the International Astronomical Union, 2006
AbstractI review the status of massive star formation theories: accretion from collapsing, massive, turbulent cores; competitive accretion; and stellar collisions. I conclude the observational and theoretical evidence favors the first of these models.
openaire   +2 more sources

First Evidence of Multi-iron Subpopulations in the Bulge Fossil Fragment Candidate Liller 1

open access: yesThe Astrophysical Journal, 2023
In the context of a project aimed at characterizing the properties of the so-called Bulge Fossil Fragments (the fossil remnants of the bulge formation epoch), here we present the first determination of the metallicity distribution of Liller 1.
Chiara Crociati   +11 more
doaj   +1 more source

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