Journal article
Sloan Digital Sky Survey IV: Mapping the Milky Way, nearby galaxies, and the distant Universe
- 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 $z\sim 0.03$). The extended Baryon Oscillation Spectroscopic Survey (eBOSS) is mapping the galaxy, quasar, and neutral gas distributions between $z\sim 0.6$ 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.
- Publication status:
- Published
- Peer review status:
- Peer reviewed
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(Preview, Version of record, pdf, 3.6MB, Terms of use)
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- Publisher copy:
- 10.3847/1538-3881/aa7567
Authors
- Publisher:
- Institute of Physics
- Journal:
- Astronomical Journal More from this journal
- Volume:
- 154
- Issue:
- 1
- Pages:
- 28
- Publication date:
- 2017-06-01
- Acceptance date:
- 2017-05-25
- DOI:
- EISSN:
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1538-3881
- ISSN:
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0004-6256
- Keywords:
- Pubs id:
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pubs:708936
- UUID:
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uuid:edb24319-ee5d-4f96-8391-aaaad74b1a4c
- Local pid:
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pubs:708936
- Deposit date:
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2017-07-21
Terms of use
- Copyright holder:
- American Astronomical Society
- Copyright date:
- 2017
- Notes:
- © 2017. The American Astronomical Society. All rights reserved. Original content from this work may be used under the terms of the Creative Commons Attribution 3.0 licence. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI.
- Licence:
- CC Attribution (CC BY)
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