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2020RNAAS...4..188A - Research Notes of the AAS, 4, 188 (2020/October-0)

Preliminary Target Selection for the DESI Milky Way Survey (MWS).

ALLENDE PRIETO C., COOPER A.P., DEY A., GANSICKE B.T., KOPOSOV S.E., LI T., MANSER C., NIDEVER D.L., ROCKOSI C., WANG M.-Y., AGUADO D.S., BLUM R., BROOKS D., EISENSTEIN D.J., DUAN Y., EFTEKHARZADEH S., GAZTANAGA E., KEHOE R., LANDRIAU M., LEE C.-H., LEVI M.E., MEISNER A.M., MYERS A.D., NAJITA J., OLSEN K., PALANQUE-DELABROUILLE N., POPPETT C., PRADA F., SCHLEGEL D.J., SCHUBNELL M., TARLE G., VALLURI M., WECHSLER R.H. and YECHE C.

Abstract (from CDS):

The DESI Milky Way Survey (MWS) will observe ≥8 million stars between 16 < r < 19 mag, supplemented by observations of brighter targets under poor observing conditions. The survey will permit an accurate determination of stellar kinematics and population gradients, characterize diffuse substructure in the thick disk and stellar halo, enable the discovery of extremely metal-poor stars and other rare stellar types, and improve constraints on the Galaxy's 3D dark matter distribution from halo star kinematics. MWS will also enable a detailed characterization of the stellar populations within 100 pc of the Sun, including a complete census of white dwarfs. The target catalog from the preliminary selection described here is public (Available at https://data.desi.lbl.gov/public/ets/target/catalogs/ and detailed at https://desidatamodel.readthedocs.io).

Abstract Copyright: © 2020. The American Astronomical Society. All rights reserved.

Journal keyword(s): Spectroscopy - Milky Way Galaxy - Radial velocity - Stellar abundances - White dwarf stars

Simbad objects: 2

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