Bibcode
Sobeck, Jennifer; Schultheis, Mathias; Zasowski, Gail; Cunha, Katia; Johnson, Jennifer; Hasselquist, Sten; Garcia Perez, A .E.
Referencia bibliográfica
American Astronomical Society, AAS Meeting #231, id.#424.03
Fecha de publicación:
1
2018
Número de citas
0
Número de citas referidas
0
Descripción
The view of the Milky Way bulge has evolved considerably over the past
decade with recent findings of a multi-component metallicity
distribution, the detection of a non-negligible fraction of younger
stars and the occurrence of multiple star formation episodes. For more
than 5 years, the Apache Point Observatory Galactic Evolution Experiment
(APOGEE-1 and APOGEE-2) has performed a large-scale, high-resolution
stellar spectroscopic survey of the Galaxy. With the use of
near-infrared spectroscopy to penetrate dust-obscured regions, APOGEE is
able to probe the full longitudinal and latitudinal extent of the bulge
and is uniquely poised to answer questions about the Inner Galaxy. We
present the metallicity results for the innermost regions of the Milky
Way based on highly-accurate abundances from the latest SDSS DR14 data
release. We relay the detection of metallicity gradients in this region
as well as the presence of multiple populations of different median
metallicity values.