A spectral atlas of post-main-sequence stars in ω Centauri: kinematics, evolution, enrichment and interstellar medium

@article{Loon2007ASA,
  title={A spectral atlas of post-main-sequence stars in $\omega$ Centauri: kinematics, evolution, enrichment and interstellar medium},
  author={Jacco Th. van Loon and Floor van Leeuwen and Barry Smalley and Andrew W. Smith and N. Lyons and Iain McDonald and Martha L. Boyer},
  journal={Monthly Notices of the Royal Astronomical Society},
  year={2007},
  volume={382},
  pages={1353-1374}
}
We present a spectral atlas of the post-main-sequence population of the most massive Galactic globular cluster, ω Centauri. Spectra were obtained of more than 1500 stars selected as uniformly as possible from across the (B, B − V) colour‐magnitude diagram of the proper motion cluster member candidates of van Leeuwen et al. The spectra were obtained with the 2dF multifibre spectrograph at the Anglo-Australian Telescope, and cover the approximate range λ ∼ 3840‐4940 A at a resolving power of… 
Detailed maps of interstellar clouds in front of ω Centauri: small‐scale structures in the Galactic disc–halo interface
The multiphase interstellar medium (ISM) is highly structured, on scales from the size of the Solar System to that of a galaxy. In particular, small-scale structures are difficult to Study and hence
A Spectroscopic Survey for ω Centauri Members at and beyond the Cluster Tidal Radius
We have used the two-degree field (2dF) multi-fiber spectrograph of the Anglo-Australian Telescope (AAT) to search for candidate members of the unusual globular cluster ω Centauri at and beyond the
Modelling chromospheric line profiles as diagnostics of velocity fields in ω Centauri red giant stars
Context. Mass loss of ∼0.1−0.3 Mfrom Population II red giant stars (RGB) is a requirement of stellar evolution theory in order to account for several observational evidences in globular clusters.
Giants in the globular cluster ω Centauri: dust production, mass-loss and distance
We present spectral energy distribution modelling of 6875 stars in ω Centauri, obtaining stellar luminosities and temperatures by fitting literature photometry to state-of-the-art MARCS stellar
Multiple populations in ω Centauri: a cluster analysis of spectroscopic data
ω Centauri, the largest globular cluster of the Milky Way, is composed of several stellar populations, which can be seen in both photometry and spectroscopy. The history of how these different
A Spitzer Space Telescope atlas of ω Centauri: The stellar population, mass loss, and the intracluster medium
We present a Spitzer Space Telescope imaging survey of the most massive Galactic globular cluster, ω Centauri, and investigate stellar mass loss at low metallicity and the intracluster medium (ICM).
FUNDAMENTAL PARAMETERS, INTEGRATED RED GIANT BRANCH MASS LOSS, AND DUST PRODUCTION IN THE GALACTIC GLOBULAR CLUSTER 47 TUCANAE
Fundamental parameters and time evolution of mass loss are investigated for post-main-sequence stars in the Galactic globular cluster 47 Tucanae (NGC 104). This is accomplished by fitting spectral
From the CMD of Omega Centauri and (super-)AGB stellar models to a Galactic plane passage gas purging chemical evolution scenario
We have investigated the color-magnitude diagram of ! Centauri and nd that the blue main sequence (bMS) can be reproduced only by models that have a of helium abundance in the range Y = 0:35{0:40. To
Spectral matching for abundances and clustering analysis of stars on the giant branches of ω Centauri
We have determined stellar parameters and abundances for 221 giant branch stars in the globular cluster ω Centauri. A combination of photometry and lower resolution spectroscopy was used to determine
A LARGE SAMPLE STUDY OF RED GIANTS IN THE GLOBULAR CLUSTER OMEGA CENTAURI (NGC 5139)
We present abundances of several light, α, Fe-peak, and neutron-capture elements for 66 red giant branch (RGB) stars in the Galactic globular cluster Omega Centauri (ω Cen). Our observations lie in
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