Keywords
Galaxies: Dwarf
Galaxy: Formation
Galaxy: Globular Clusters: General
Stars: Horizontal-Branch
Stars: Variables: Other
Astrophysics
Galaxy: Formation
Galaxy: Globular Clusters: General
Stars: Horizontal-Branch
Stars: Variables: Other
Astrophysics
How to Cite
Near-Field Cosmology with Horizontal Branch and RR Lyrae Stars. (2006). Revista Mexicana De Astrofísica Y Astronomía Serie De Conferencias, 26, 93-96. https://doi.org/10.22201/ia.14052059p.2006.26.39
Abstract
The importance of horizontal branch and RR Lyrae stars is discussed in the context of cosmological arguments for the formation of the Galactic halo and its satellite dwarf galaxies. It is shown, in particular, that the Galactic halo globular cluster system cannot have formed from the accretion of ``protogalactic fragments'' resembling the very early counterparts of the present-day dwarf satellite galaxies of the Milky Way, or else its RR Lyrae properties would be very different from what is currently observed.Similar Articles
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