Results 31 to 40 of about 70 (69)

Helium Mixing in Globular Cluster Stars

open access: yes, 1997
The observed abundance variations in globular cluster red giants indicate that these stars may be mixing helium from the hydrogen shell outward into the envelope, presumably as a result of internal rotation. We have investigated the implications of such helium mixing for both the red- giant-branch (RGB) and horizontal-branch (HB) phases by computing a ...
openaire   +2 more sources

On the Theory of Globular Star Clusters [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 1947
openaire   +2 more sources

Multicolour photometry of globular cluster stars

open access: yes, 1977
The underlying theme of this thesis is the application of electronography to the study of stars in globular clusters through the use of both broad and intermediate-band photometric systems. Introductions to both the study of globular clusters and to the use of electronography are given in Chapter 1.
openaire   +1 more source

Origin of the Globular Star Clusters

open access: yesThe Astrophysical Journal, 1968
P. J. E. Peebles, R. H. Dicke
openaire   +1 more source

Accretion processes onto globular cluster stars

open access: yes, 2000
Thoul, Anne   +6 more
openaire   +1 more source

Variable stars in galactic globular clusters

open access: yesAstronomy & Astrophysics
Cruz Reyes, Mauricio   +4 more
openaire   +1 more source

Abundance Anomalies in Globular Cluster Stars

EAS Publications Series, 2006
We present a summary of the extensive problems posed by the curious abundance correlations seen in stars in Galactic globular clusters. We discuss three scenarios, and conclude that only one seems to be consistent with the observations. Even this is still rather unsatisfying from many viewpoints.
J.C. Lattanzio, C.A. Tout
openaire   +1 more source

Binary stars in globular clusters

1996
NOTE: Text or symbols not renderable in plain ASCII are indicated by [...]. Abstract is included in .pdf document. This thesis consists of several surveys to search for binary stars and to estimate the frequencies of binary populations in globular clusters.
openaire   +1 more source

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