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Sloan Digital Sky Survey IV: mapping the Milky Way, nearby galaxies, and the distant universe

Blanton, Michael R.; Bershady, Matthew A.; Abolfathi, Bela; Albareti, Franco D.; Prieto, Carlos Allende; Almeida, Andres; Alonso-García, Javier; Anders, Friedrich; Anderson, Scott F.; Andrews, Brett; Aquino-Ortíz, Erik; Aragón-Salamanca, Alfonso; Argudo-Fernandez, Maria; Armengaud, Eric; Aubourg, Eric; Avila-Reese, Vladimir; Badenes, Carles; Merrifield, Michael R.

Authors

Michael R. Blanton

Matthew A. Bershady

Bela Abolfathi

Franco D. Albareti

Carlos Allende Prieto

Andres Almeida

Javier Alonso-García

Friedrich Anders

Scott F. Anderson

Brett Andrews

Erik Aquino-Ortíz

Alfonso Aragón-Salamanca alfonso.aragon@nottingham.ac.uk

Maria Argudo-Fernandez

Eric Armengaud

Eric Aubourg

Vladimir Avila-Reese

Carles Badenes

Michael R. Merrifield



Abstract

We describe the Sloan Digital Sky Survey IV (SDSS-IV), a project encompassing three major spectroscopic programs. The Apache Point Observatory Galactic Evolution Experiment 2 (APOGEE-2) is observing hundreds of thousands of Milky Way stars at high resolution and high signal-to-noise ratios in the near-infrared. The Mapping Nearby Galaxies at Apache Point Observatory (MaNGA) survey is obtaining spatially resolved spectroscopy for thousands of nearby galaxies (median ). The extended Baryon Oscillation Spectroscopic Survey (eBOSS) is mapping the galaxy, quasar, and neutral gas distributions between and 3.5 to constrain cosmology using baryon acoustic oscillations, redshift space distortions, and the shape of the power spectrum. Within eBOSS, we are conducting two major subprograms: the SPectroscopic IDentification of eROSITA Sources (SPIDERS), investigating X-ray AGNs and galaxies in X-ray clusters, and the Time Domain Spectroscopic Survey (TDSS), obtaining spectra of variable sources. All programs use the 2.5 m Sloan Foundation Telescope at the Apache Point Observatory; observations there began in Summer 2014. APOGEE-2 also operates a second near-infrared spectrograph at the 2.5 m du Pont Telescope at Las Campanas Observatory, with observations beginning in early 2017. Observations at both facilities are scheduled to continue through 2020. In keeping with previous SDSS policy, SDSS-IV provides regularly scheduled public data releases; the first one, Data Release 13, was made available in 2016 July.

Journal Article Type Article
Publication Date Jun 29, 2017
Journal Astronomical Journal
Print ISSN 0004-6256
Electronic ISSN 1538-3881
Publisher American Astronomical Society
Peer Reviewed Peer Reviewed
Volume 154
Issue 1
Article Number 28
APA6 Citation Blanton, M. R., Bershady, M. A., Abolfathi, B., Albareti, F. D., Prieto, C. A., Almeida, A., …Merrifield, M. R. (2017). Sloan Digital Sky Survey IV: mapping the Milky Way, nearby galaxies, and the distant universe. Astronomical Journal, 154(1), doi:10.3847/1538-3881/aa7567
DOI https://doi.org/10.3847/1538-3881/aa7567
Keywords Cosmology: observations, Galaxies: general, Instrumentation, Spectrographs, Stars: general, Surveys
Publisher URL https://doi.org/10.3847/1538-3881/aa7567
Copyright Statement Copyright information regarding this work can be found at the following address: http://creativecommons.org/licenses/by/4.0
Additional Information Article has 258 authors.

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Copyright Statement
Copyright information regarding this work can be found at the following address: http://creativecommons.org/licenses/by/4.0





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