scholarly journals A single population of red globular clusters around the massive compact galaxy NGC 1277

Nature ◽  
2018 ◽  
Vol 555 (7697) ◽  
pp. 483-486 ◽  
Author(s):  
Michael A. Beasley ◽  
Ignacio Trujillo ◽  
Ryan Leaman ◽  
Mireia Montes
Keyword(s):  
Globular Clusters ◽  
Compact Galaxy ◽  
Single Population

scholarly journals The ACS survey of Galactic globular clusters – XIV. Bayesian single-population analysis of 69 globular clusters

2017 ◽  
Vol 468 (1) ◽  
pp. 1038-1055 ◽  
Author(s):  
R. Wagner-Kaiser ◽  
A. Sarajedini ◽  
T. von Hippel ◽  
D. C. Stenning ◽  
D. A. van Dyk ◽  
...  
Keyword(s):  
Globular Clusters ◽  
Population Analysis ◽  
Single Population ◽  
Galactic Globular Clusters

scholarly journals Evolution of Globular Cluster Populations in Compact Galaxy Groups

2005 ◽  
Vol 13 ◽  
pp. 204-204
Author(s):  
S. Leon ◽  
J. Perea ◽  
A. Del Olmo ◽  
E. Athanassoula ◽  
G. Bergond ◽  
...  
Keyword(s):  
Globular Cluster ◽  
Globular Clusters ◽  
Compact Galaxy ◽  
Compact Groups ◽  
Groups Of Galaxies ◽  
Galaxy Groups ◽  
Final Configuration

AbstractThe redistribution of globular clusters within compact groups of galaxies is followed through N-body simulations. Particular emphasis is given to the globular clusters released in the Intra-Group Medium (IGM) and to the final configuration of the evolution.

Recent Advances in High Dispersion Spectroscopy of Globular Cluster Stars

1988 ◽  
Vol 132 ◽  
pp. 525-530
Author(s):  
Raffaele G. Gratton
Keyword(s):  
Globular Cluster ◽  
Globular Clusters ◽  
High Dispersion ◽  
Photographic Material ◽  
Recent Advances ◽  
Metal Abundances ◽  
Ccd Detectors ◽  
Major Progress

The use CCD detectors has allowed a major progress in abundance derivations for globular cluster stars in the last years. Abundances deduced from high dispersion spectra now correlates well with other abundance indicators. I discuss some problems concerning the derivation of accurate metal abundances for globular clusters using high dispersion spectra from both the old photographic and the most recent CCD data. The discrepant low abundances found by Cohen (1980), from photographic material for M71 giants, are found to be due to the use of too high microturbulences.

Population fragmentation causes inadequate gene flow and increases extinction risk

2017 ◽  
Author(s):  
Richard Frankham ◽  
Jonathan D. Ballou ◽  
Katherine Ralls ◽  
Mark D. B. Eldridge ◽  
Michele R. Dudash ◽  
...  
Keyword(s):  
Gene Flow ◽  
Extinction Risk ◽  
Random Mating ◽  
Large Population ◽  
Isolated Population ◽  
Population Fragmentation ◽  
Single Population ◽  
Total Size ◽  
Limited Gene Flow

Most species now have fragmented distributions, often with adverse genetic consequences. The genetic impacts of population fragmentation depend critically upon gene flow among fragments and their effective sizes. Fragmentation with cessation of gene flow is highly harmful in the long term, leading to greater inbreeding, increased loss of genetic diversity, decreased likelihood of evolutionary adaptation and elevated extinction risk, when compared to a single population of the same total size. The consequences of fragmentation with limited gene flow typically lie between those for a large population with random mating and isolated population fragments with no gene flow.

The Formation and Evolution of Candidate Young Globular Clusters in NGC 3256

1999 ◽  
Vol 118 (2) ◽  
pp. 752-764 ◽  
Author(s):  
Stephen E. Zepf ◽  
Keith M. Ashman ◽  
Jayanne English ◽  
Kenneth C. Freeman ◽  
Ray M. Sharples
Keyword(s):  
Globular Clusters ◽  
Formation And Evolution
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