Results 31 to 40 of about 348,228 (250)

Evolution of star clusters in a cosmological tidal field

open access: yes, 2013
We present a method to couple N-body star cluster simulations to a cosmological tidal field, using the Astrophysical Multipurpose Software Environment. We apply this method to star clusters embedded in the CosmoGrid dark matter-only LambdaCDM simulation.
Ishiyama, Tomoaki   +5 more
core   +1 more source

Star cluster disruption [PDF]

open access: yesProceedings of the International Astronomical Union, 2009
AbstractStar clusters are often used as tracers of major star-formation events in external galaxies as they can be studied out to much greater distances than individual stars. It is vital to understand their evolution if they are used to derive, for example, the star-formation history of their host galaxy. More specifically, we want to know how cluster
openaire   +4 more sources

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   +5 more sources

Star Clusters

open access: yes, 2006
Star clusters are observed in almost every galaxy. In this thesis we address several fundamental problems concerning the formation, evolution and disruption of star clusters. From observations of (young) star clusters in the interacting galaxy M51, we found that clusters are formed in complexes of stars and star clusters.
openaire   +6 more sources

The relation between star formation, morphology and local density in high redshift clusters and groups [PDF]

open access: yes, 2008
We investigate how the [OII] properties and the morphologies of galaxies in clusters and groups at z=0.4-0.8 depend on projected local galaxy density, and compare with the field at similar redshifts and clusters at low-z.
Alfonso Aragón‐Salamanca   +21 more
core   +4 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   +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.
Stephen J. Warren   +2 more
openaire   +5 more sources

Shock-induced star cluster formation in colliding galaxies

open access: yes, 2011
We studied the formation process of star clusters using high-resolution N-body/smoothed particle hydrodynamcs simulations of colliding galaxies. The total number of particles is 1.2x10^8 for our high resolution run.
Daisaka, Hiroshi   +7 more
core   +1 more source

Filamentary Star Formation in NGC 1275 [PDF]

open access: yes, 2014
We examine the star formation in the outer halo of NGC~1275, the central galaxy in the Perseus cluster (Abell 426), using far ultraviolet and optical images obtained with the Hubble Space Telescope.
Canning, R. E. A   +10 more
core   +2 more sources

Flare Stars in Star Clusters and Associations [PDF]

open access: yesSymposium - International Astronomical Union, 1975
The study of stellar evolution can be undertaken either from a purely theoretical point of view or from a more observational approach. The present standpoint is the second one. It starts from the concepts of stellar evolution in associations and open clusters and from stellar flare activity.
V. A. Ambartsumian, L. V. Mirzoian
openaire   +2 more sources

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