TY - JOUR
T1 - CHEMICAL CARTOGRAPHY with APOGEE
T2 - METALLICITY DISTRIBUTION FUNCTIONS and the CHEMICAL STRUCTURE of the MILKY WAY DISK
AU - Hayden, Michael R.
AU - Bovy, Jo
AU - Holtzman, Jon A.
AU - Nidever, David L.
AU - Bird, Jonathan C.
AU - Weinberg, David H.
AU - Andrews, Brett H.
AU - Majewski, Steven R.
AU - Prieto, Carlos Allende
AU - Anders, Friedrich
AU - Beers, Timothy C.
AU - Bizyaev, Dmitry
AU - Chiappini, Cristina
AU - Cunha, Katia
AU - Frinchaboy, Peter
AU - García-Herńandez, D. A.
AU - García Pé Rez, Ana E.
AU - Girardi, Léo
AU - Harding, Paul
AU - Hearty, Fred R.
AU - Johnson, Jennifer A.
AU - Mészáros, Szabolcs
AU - Minchev, Ivan
AU - O'Connell, Robert
AU - Pan, Kaike
AU - Robin, Annie C.
AU - Schiavon, Ricardo P.
AU - Schneider, Donald P.
AU - Schultheis, Mathias
AU - Shetrone, Matthew
AU - Skrutskie, Michael
AU - Steinmetz, Matthias
AU - Smith, Verne
AU - Wilson, John C.
AU - Zamora, Olga
AU - Zasowski, Gail
PY - 2015/8/1
Y1 - 2015/8/1
N2 - Using a sample of 69,919 red giants from the SDSS-III/APOGEE Data Release 12, we measure the distribution of stars in the [/Fe] versus [Fe/H] plane and the metallicity distribution functions (MDFs) across an unprecedented volume of the Milky Way disk, with radius 3 < R < 15 kpc and height kpc. Stars in the inner disk (R < 5 kpc) lie along a single track in [/Fe] versus [Fe/H], starting with -enhanced, metal-poor stars and ending at [/Fe] ∼ 0 and [Fe/H] ∼ +0.4. At larger radii we find two distinct sequences in [/Fe] versus [Fe/H] space, with a roughly solar- sequence that spans a decade in metallicity and a high- sequence that merges with the low- sequence at super-solar [Fe/H]. The location of the high- sequence is nearly constant across the disk.
AB - Using a sample of 69,919 red giants from the SDSS-III/APOGEE Data Release 12, we measure the distribution of stars in the [/Fe] versus [Fe/H] plane and the metallicity distribution functions (MDFs) across an unprecedented volume of the Milky Way disk, with radius 3 < R < 15 kpc and height kpc. Stars in the inner disk (R < 5 kpc) lie along a single track in [/Fe] versus [Fe/H], starting with -enhanced, metal-poor stars and ending at [/Fe] ∼ 0 and [Fe/H] ∼ +0.4. At larger radii we find two distinct sequences in [/Fe] versus [Fe/H] space, with a roughly solar- sequence that spans a decade in metallicity and a high- sequence that merges with the low- sequence at super-solar [Fe/H]. The location of the high- sequence is nearly constant across the disk.
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U2 - 10.1088/0004-637X/808/2/132
DO - 10.1088/0004-637X/808/2/132
M3 - Article
AN - SCOPUS:84941240539
SN - 0004-637X
VL - 808
JO - Astrophysical Journal
JF - Astrophysical Journal
IS - 2
M1 - 132
ER -