VizieR Online Data Catalog: Abundance variations in the outer halo GC NGC 6229 (Johnson+, 2017)
Abstract
The spectroscopic data for this project were obtained with the MMT 6.5 m telescope instrumented with the Hectochelle multi-fiber spectrograph (Szentgyorgyi et al. 2011PASP..123.1188S) in clear weather on 2016 January 30 and 2016 April 22-30. We utilized the "Cu28" (11 hr), "CJ26" (7 hr), and "OB24" (8 hr) filters to obtain high resolution (R~38000), high signal-to-noise ratio (S/N>100 per reduced pixel) spectra through a series of 1 hr exposures. Using coordinates and photometry from the Two Micron All Sky Survey (2MASS; Skrutskie et al. 2006, Cat. VII/233), we targeted 57 upper red giant branch (RGB) stars spanning ~0.5'-20' from the cluster center.
(5 data files).- Publication:
-
VizieR Online Data Catalog
- Pub Date:
- July 2018
- DOI:
- 10.26093/cds/vizier.51540155
- Bibcode:
- 2018yCat..51540155J
- Keywords:
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- Clusters: globular;
- Stars: giant;
- Photometry: infrared;
- Radial velocities;
- Effective temperatures;
- Abundances