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

Carlos Allende Prieto, Andrew P. Cooper, Arjun Dey, Boris T. Gänsicke, Sergey E. Koposov, Ting Li, Christopher Manser, David L. Nidever, Constance Rockosi, Mei-Yu Wang, David S. Aguado, Robert Blum, David Brooks, Daniel J. Eisenstein, Yutong Duan, Sarah Eftekharzadeh, Enrique Gaztañaga, Robert Kehoe, Martin Landriau, Chien-Hsiu LeeMichael E. Levi, Aaron M. Meisner, Adam D. Myers, Joan Najita, Knut Olsen, Nathalie Palanque-Delabrouille, Claire Poppett, Francisco Prada, David J. Schlegel, Michael Schubnell, Gregory Tarlé, Monica Valluri, Risa H. Wechsler, Christophe Yèche

Research output: Contribution to journalArticle


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.
Original languageEnglish
JournalResearch Notes of the American Astronomical Society
Issue number10
Publication statusPublished - 23 Oct 2020


  • astro-ph.GA
  • astro-ph.SR


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