Results 91 to 100 of about 2,066,093 (377)
How Clumpy Star Formation Affects Globular Cluster Systems
Galaxies, 2017 There is now clear evidence the metallicities of globular clusters are not simple tracers of the elemental abundances in their protocluster clouds; some of the heavy elements were formed subsequently within the cluster itself. It is also manifestly clear
Jeremy Bailin
doaj +1 more source
The Globular Cluster Migratory Origin of Nuclear Star Clusters [PDF]
, 2014 Nuclear Star Clusters (NSCs) are often present in spiral galaxies as well as resolved Stellar Nuclei (SNi) in elliptical galaxies centres. Ever growing observational data indicate the existence of correlations between the properties of these very dense ...
M. Arca-Sedda, R. Capuzzo-Dolcetta
semanticscholar +1 more source
Globular Cluster Distance Determinations [PDF]
, 1998 The present status of the distance scale to Galactic globular clusters is reviewed. Six distance determination techniques which are deemed to be most reliable are discussed in depth. These different techniques are used to calibrate the absolute magnitude
A Renzini +49 more
core +3 more sources
Globular Cluster Formation [PDF]
, 2006 13 pages. Review to appear in "Extragalactic Globular Cluster Systems," ed. M.
openaire +3 more sources
Structure of Globular Clusters [PDF]
Highlights of Astronomy, 1998 There was a time, more than a century ago, when Astronomy & Astrophysics was not a European Journal yet, but still an American one. In its Vol. XII, Bailey (1893) published, from photographic observations of two globular clusters (GCs), ω Centauri and 47 Tucanae, what were probably the first extensive star counts, which represent the oldest ...
Georges Meylan, G. A. Drukier
openaire +2 more sources
Microbial exopolysaccharide production by polyextremophiles in the adaptation to multiple extremes
FEBS Letters, EarlyView.Polyextremophiles are microorganisms that endure multiple extreme conditions by various adaptation strategies that also include the production of exopolysaccharides (EPSs). This review provides an integrated perspective on EPS biosynthesis, function, and regulation in these organisms, emphasizing their critical role in survival and highlighting their ...
Tracey M Gloster, Ebru Toksoy Öner
wiley +1 more source
The Open Journal of AstrophysicsWe present the first high-resolution abundance study of ESO 280-SC06, one of the least luminous and most metal-poor gravitationally bound Milky Way globular clusters.
Sam A Usman +8 more
doaj +1 more source
MODELING THE FORMATION OF GLOBULAR CLUSTER SYSTEMS IN THE VIRGO CLUSTER [PDF]
, 2014 The mass distribution and chemical composition of globular cluster (GC) systems preserve fossil record of the early stages of galaxy formation. The observed distribution of GC colors within massive early-type galaxies in the ACS Virgo Cluster Survey ...
Hui Li, O. Gnedin
semanticscholar +1 more source
Neutrino and axion bounds from the globular cluster M5 (NGC 5904). [PDF]
Physical Review Letters, 2013 The red-giant branch (RGB) in globular clusters is extended to larger brightness if the degenerate helium core loses too much energy in "dark channels." Based on a large set of archival observations, we provide high-precision photometry for the Galactic ...
N. Viaux +6 more
semanticscholar +1 more source
, 2011 Thermally pulsing asymptotic giant branch models of globular cluster stars are calculated using a synthetic model with the goal of reproducing the chemical composition, core masses and other observational parameters of the four known globular cluster ...
Alexander +56 more
core +1 more source