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The peculiar properties of horizontal branch stars in omega Centauri
peculiar properties horizontal branch stars omega Centauri
2011/10/20
We measured temperatures, gravities, and masses for a large sample of blue horizontal branch stars in omega Centauri, comparing the results with theoretical expectations for canonical and He-enriched ...
Modelling chromospheric line profiles as diagnostics of velocity fields in ω Centauri red giant stars
line profiles globular clusters individual atmospheres mass loss
2010/11/11
Context. Mass loss of ∼ 0.1-0.3 M⊙ from Population II red giant stars (RGB) is a requirement of stellar evolution theory in order to account for several observational evidences in globular clust...
Lanthanides and other spectral oddities in a Centauri
Solar and Stellar Astrophysics (astro-ph.SR)
2011/1/6
There is considerable interest in the helium variable a Cen as a bridge between helium-weak and helium-strong CP stars.
Perturbations by Mass Loss in the Orbital Elements of Persei and Centauri
Mass Loss Persei Centauri Orbital Elements
2009/6/9
Perturbations by Mass Loss in the Orbital Elements of Persei and Centauri。