Stellar Cluster Abundances from APOGEE Commissioning Spectra
Abstract
The Apache Point Observatory Galactic Evolution Experiment (APOGEE) will undertake an H-band (1.52-1.68 micron) spectroscopic survey of 1E5 red giant stars spanning the Galactic disk, bulge, and halo, with typical limiting magnitude H 12.5. During the commissioning of APOGEE a number of plates containing stellar clusters were observed. Some of these star clusters are well-studied, such as M3, and others have few literatureabundance references, such as NGC 5466. We exhibit sample spectra from these clusters and give examples of the lines that can be identified at different metallicities. Metallicities and abundances are derived using a traditional equivalent width analysis with photometric stellar parameters.
- Publication:
-
American Astronomical Society Meeting Abstracts #219
- Pub Date:
- January 2012
- Bibcode:
- 2012AAS...21942803S