[PDF] Top 20 High resolution abundance analysis of four red giants in the globular cluster NGC 6558

... ference of 19 yr, proper motion decontamination, with high accuracy, was ...provided the basis to derive photometric stellar parameters. Based on the proper motions obtained from the ... See full document

... on the analysis of the J Ks versus Ks color – magnitude diagram and spectroscopi- cally derived metallicities and radial velocities of 15 stars, they concluded that the ... See full document

... obtained high-resolution spectroscopy of a star on the red giant branch (RGB) of NGC ...derive the abundance of several elements, including Fe ([Fe/H] ... See full document

... detailed abundance analysis because previ- ous photometric ...on the sub-giant branch of M 22. Detailed abundance analyses based on a few stars and using high-resolution ... See full document

... present the fi rst spectroscopic abundance determination of iron, α -elements ( Si, Ca, and Ti ) , and sodium for the Mira variable V1 in the metal-rich globular ... See full document

... spectroscopic analysis of horizontal branch stars in the globular cluster NGC  ..., high-resolution (∼ 34,000 ) , high signal-to-noise ratio (∼ 200 ) ... See full document

... present the abundance analysis for a sample of 18 red giant branch stars in the metal-poor globular cluster NGC 4147 based on medium- and ... See full document

... one of the most massive and likely the oldest components of the Milky Way and its stars are direct links to the pristine formation mechanisms of the early Galaxy ... See full document

... concerns the helium abundance: Recio-Blanco et al. (2006) discussed the HB characteristics of 54 BHB globu- lar clusters, and concluded that the blue HB extension depends on ... See full document

... spectra of individual stars of HP 1 were obtained at the VLT using the UVES spectrograph (Dekker et ...2000) in FLAMES-UVES mode. The red arm (5800−6800 Å) has the ... See full document

... for the first time, a detailed abundance analysis of five giant stars in the moderately metal-poor bulge globular cluster NGC ...at the VLT with ... See full document

... stars of each single-chip raw frames with the 2MASS catalog by using six-parameter linear transformations (which also include the deviation from orthogonal- ity and the change of ... See full document

... over the full pulsation cycle belong to M62, we have included a third CMD in Figure ...5. In this case, the variable stars were simply identified in the photometry catalog and ... See full document

... towards the existence of sub- structure within the GCSs of elliptical galaxies is the bi- modal distribution of GC ...colours. The works by ...feature in the ... See full document

... position of the cluster in a metallicity versus HB- type diagram is displayed in Figure ...are the numbers of blue, red, and variable (RR Lyrae-type) HB stars, ... See full document

... shift in dominance between the inner- and outer- halo component occurs at Galactocentric distances of ∼15 kpc, which is also the distance range in which such transition is seen ... See full document

... for the Galactic globular cluster NGC 6402 (M14). The data con- sists of ∼137 images per filter, obtained using the ...at the Cerro Tololo Inter-American ... See full document

... amount of extra cooling, although this effect is not significant within the ...that the WD luminosity function and period decrease of ZZ Ceti stars also mildly point to extra ...None of ... See full document

... been the subject of some analyses based on photographic and CCD time series photometry (Clement, Ip & Robert 1984; Clement & Walker 1991; Clement & Shelton 1996, ...1999). The 2012 update ... See full document

... studies of the globular cluster system of NGC ...low-resolution, high signal-to-noise spectroscopy of 72 globular clusters using Gemini-S/GMOS to ... See full document