Chemical Cartography with SDSS-III APOGEE: DR12 Results

Bibcode
2015AAS...22531902H
Hayden, M. R.; Holtzman, Jon A.; Bovy, Jo; Majewski, Steven R.; Nidever, David L.; Zasowski, Gail; Schiavon, Ricardo P.; Frinchaboy, Peter M.; Hearty, Fred; Allende-Prieto, C.; García Pérez, A. E.; Robin, Annie; Cunha, Katia M. L.; Beers, Timothy C.; Apogee Team
Bibliographical reference

American Astronomical Society, AAS Meeting #225, #319.02

Advertised on:
1
2015
Number of authors
15
IAC number of authors
2
Citations
0
Refereed citations
0
Description
The SDSS-III Apache Point Observatory Galactic Evolution Experiment (APOGEE) spectrograph provides an unprecedented view of the Milky Way disk, due in part to its ability to observe in the infrared, where the effects of extinction are significantly reduced compared to optical surveys. We present updated results on mean metallicity and chemical abundance gradients using the full three years of APOGEE1 observations and new results of the metallicity distribution function (MDF) and the [α/Fe] vs. [Fe/H] plane at different locations in the Milky Way disk. Our sample comprises nearly high signal-to-noise observations of nearly 100,000 red giant stars taken from SDSS DR12. These observations span the entire Milky Way visible from the northern hemisphere, ranging from the bulge to the edge of the disk (0
Type
Non-refereed

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