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Blanton, MR, Bershady, MA, Abolfathi, B, Albareti, FD, Allende Prieto, C, Almeida, A, Alonso-Garcia, J, Anders, F, Anderson, SF, Andrews, B, Aquino-Ortiz, E, Aragon-Salamanca, A, Argudo-Fernandez, M, Armengaud, E, Aubourg, E, Avila-Reese, V, Badenes, C, Bailey, S, Barger, KA, Barrera-Ballesteros, J et al (2017) Sloan Digital Sky Survey IV: Mapping the Milky Way, Nearby Galaxies, and the Distant Universe. ASTRONOMICAL JOURNAL, 154 (1). ISSN 0004-6256
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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.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | 0201 Astronomical And Space Sciences |
| Subjects: | Q Science > QB Astronomy |
| Divisions: | Astrophysics Research Institute |
| Publisher: | IOP PUBLISHING LTD |
| Related URLs: | |
| Date of acceptance: | 25 May 2017 |
| Date of first compliant Open Access: | 2 February 2018 |
| Date Deposited: | 02 Feb 2018 16:21 |
| Last Modified: | 04 Sep 2021 10:48 |
| DOI or ID number: | 10.3847/1538-3881/aa7567 |
| URI: | https://ljmu-9.eprints-hosting.org/id/eprint/7935 |
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