학술논문
Preliminary Target Selection for the DESI Milky Way Survey (MWS)
Document Type
Working Paper
Author
Prieto, Carlos Allende; Cooper, Andrew P.; Dey, Arjun; Gänsicke, Boris T.; Koposov, Sergey E.; Li, Ting; Manser, Christopher; Nidever, David L.; Rockosi, Constance; Wang, Mei-Yu; Aguado, David S.; Blum, Robert; Brooks, David; Eisenstein, Daniel J.; Duan, Yutong; Eftekharzadeh, Sarah; Gaztañaga, Enrique; Kehoe, Robert; Landriau, Martin; Lee, Chien-Hsiu; Levi, Michael E.; Meisner, Aaron M.; Myers, Adam D.; Najita, Joan; Olsen, Knut; Palanque-Delabrouille, Nathalie; Poppett, Claire; Prada, Francisco; Schlegel, David J.; Schubnell, Michael; Tarlé, Gregory; Valluri, Monica; Wechsler, Risa H.; Yèche, Christophe
Source
Res. Notes AAS, 4, 188 (2020)
Subject
Language
Abstract
The DESI Milky Way Survey (MWS) will observe $\ge$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.
Comment: 4 pages, 1 figure; published in Res. Notes AAS
Comment: 4 pages, 1 figure; published in Res. Notes AAS