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Is a binary fraction-age relation responsible for the lack of EHB binaries in globular clusters?
(2008)
Context.The recently-discovered lack of close binaries, among extreme horizontal branch (EHB) stars in Galactic globular clusters, has thus far constituted a major puzzle, in view of the fact that blue subdwarf stars - the ...
The Sagittarius dSph globular cluster system: variable stars
(2006)
We have applied the image subtraction technique to images of four globular clusters which have been suggested to be associated with the Sagittarius dSph galaxy: Arp, NGC634, Palomar2 and Terzan. As a result we have a found ...
Homogeneous metallicities and radial velocities for Galactic globular clusters II. New CaT metallicities for 28 distant and reddened globular clusters
(2018)
Although the globular clusters in the Milky Way have been studied for a long time, a significant fraction of them lack homogeneous metallicity and radial velocity measurements. In an earlier paper we presented the first ...
VLT-FLAMES analysis of 8 giants in the bulge metal-poor globular cluster NGC 6522: oldest cluster in the Galaxy? Analysis of 8 giants in NGC 6522
(EDP SCIENCES S A, 2009)
Context. NGC 6522 has been the first metal-poor globular cluster identified in the bulge by Baade. Despite its importance, very few high-resolution abundance analyses of stars in this cluster are available. The bulge ...
Star cluster collisions - a formation scenario for the extended globular cluster scl-de1 gc1
(OXFORD UNIV PRESS, 2011)
Variable Stars in Metal-Rich Globular Clusters: NGC 6304 and NGC 6569
(2002)
It has recently become evident that the RR Lyrae in metal-rich globular clusters ([Fe/H]> -1.0) have properties different from those of metal-rich RR Lyrae found in the field. In particular, they have longer periods than ...