The Peculiar Horizontal Branch Morphology of the Galactic Globular Clusters NGC6388 and NGC6441

Simple item page
dc.creatorBusso, Giorgia
dc.date2007-12-21
dc.date.accessioned2026-07-07T08:50:54Z
dc.date.available2026-07-07T08:50:54Z
dc.descriptionI present multiband optical and UV Hubble Space Telescope photometry of the two Galactic globular clusters NGC6388 and NGC6441, in order to investigate the nature of the physical mechanism(s) responsible for the existence of an extended blue tail and of a slope in the horizontal branch. Further evidence that the horizontal branch tilt cannot be interpreted as an effect of differential reddening is provided, while I show that a possible solution of the puzzle is to assume that a small fraction of the stellar population in the two clusters is strongly helium enriched.
dc.description5 pages, 3 figures, to appear in the proceedings of the "XXI Century challenges for stellar evolution" workshop, Cefalu' 2007
dc.identifierhttps://arxiv.org/abs/0712.3720
dc.identifierhttp://arxiv.org/abs/0712.3720
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/144757
dc.subjectAstrophysics
dc.titleThe Peculiar Horizontal Branch Morphology of the Galactic Globular Clusters NGC6388 and NGC6441
dc.typetext

Files

Collections

arXiv