THE SDSS-IV EXTENDED BARYON OSCILLATION SPECTROSCOPIC SURVEY: OVERVIEW AND EARLY DATA

被引：698

作者：

Dawson, Kyle S. ^{[1
]}

Kneib, Jean -Paul ^{[2
,3
]}

Percival, Will J. ^{[4
]}

Alam, Shadab ^{[5
]}

Albareti, Franco D. ^{[6
]}

Anderson, Scott F. ^{[7
]}

Armengaud, Eric ^{[8
]}

Aubourg, Eric ^{[9
]}

Bailey, Stephen ^{[10
]}

Bautista, Julian E. ^{[1
]}

Berlind, Andreas A. ^{[11
]}

Bershady, Matthew A. ^{[12
]}

Beutler, Florian ^{[10
]}

Bizyaev, Dmitry ^{[13
,14
,15
]}

Blanton, Michael R. ^{[16
]}

Blomqvist, Michael ^{[17
]}

Bolton, Adam S. ^{[1
,13
]}

Boyy, Jo ^{[18
]}

Brandt, W. N. ^{[19
,20
,21
]}

Brinkmann, Jon ^{[13
]}

Brownstein, Joel R. ^{[1
]}

Burtin, Etienne ^{[8
]}

Busca, N. G. ^{[9
]}

Cai, Zheng ^{[22
]}

Chuang, Chia-Hsun ^{[6
]}

Clerc, Nicolas ^{[23
]}

Comparat, Johan ^{[6
]}

Cope, Frances ^{[13
]}

Croft, Rupert A. C. ^{[5
]}

Cruz-Gonzalez, Irene ^{[24
]}

da Costa, Lutz N. ^{[25
,26
]}

Cousinou, Marie-Claude ^{[27
]}

Darling, Jeremy ^{[28
]}

de la Macorra, Axel ^{[24
]}

de la Torre, Sylvain ^{[3
]}

Delubac, Timothee ^{[2
]}

des Bourboux, Helion du Mas ^{[8
]}

Dwelly, Tom ^{[23
]}

Ealet, Anne ^{[27
]}

Eisenstein, Daniel J. ^{[29
]}

Eracleous, Michael ^{[19
,20
,21
]}

Escoffier, S. ^{[27
]}

Fan, Xiaohui ^{[22
]}

Finoguenov, Alexis ^{[30
]}

Font-Ribera, Andreu ^{[10
]}

Frinchaboy, Peter ^{[31
]}

Gaulme, Patrick ^{[13
]}

Georgakakis, Antonis ^{[23
]}

Green, Paul ^{[29
]}

Guo, Hong ^{[1
,32
]}

机构：

[1] Univ Utah, Dept Phys & Astron, Salt Lake City, UT 84112 USA

[2] Ecole Polytech Fed Lausanne, Observ Sauverny, Astrophys Lab, CH-1290 Versoix, Switzerland

[3] Aix Marseille Univ, CNRS, LAM, UMR 7326, F-13388 Marseille, France

[4] Univ Portsmouth, Inst Cosmol & Gravitat, Dennis Sciama Bldg, Portsmouth PO1 3FX, Hants, England

[5] Carnegie Mellon Univ, Dept Phys, Bruce & Astrid McWilliams Ctr Cosmol, 5000 Forbes Ave, Pittsburgh, PA 15213 USA

[6] Univ Autonoma Madrid, CSIC, Inst Fis Teor, E-28049 Madrid, Spain

[7] Univ Washington, Dept Astron, Box 351580, Seattle, WA 98195 USA

[8] CEA, Ctr Saclay, Irfu SPP, F-91191 Gif Sur Yvette, France

[9] Univ Paris Diderot, APC, CNRS IN2P3, CEA IRFU,Observ Paris,Sorbonne Paris Cite, Paris, France

[10] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, One Cyclotron Rd, Berkeley, CA 94720 USA

[11] Vanderbilt Univ, Dept Phys & Astron, PMB 401807,2401 Vanderbilt Pl, Nashville, TN 37240 USA

[12] Univ Wisconsin, Dept Astron, 475 N Charter St, Madison, WI 53703 USA

[13] Apache Point Observ, POB 59, Sunspot, NM 88349 USA

[14] New Mexico State Univ, Dept Astron, MSC 4500,POB 30001, Las Cruces, NM 88003 USA

[15] Moscow MV Lomonosov State Univ, Sternberg Astron Inst, Moscow, Russia

[16] NYU, Dept Phys, Ctr Cosmol & Particle Phys, 4 Washington Pl, New York, NY 10003 USA

[17] Univ Calif Irvine, Dept Phys & Astron, Irvine, CA 92697 USA

[18] Univ Toronto, Dept Astron & Astrophys, 50 St George St, Toronto, ON M5S 3H4, Canada

[19] Penn State Univ, Dept Astron & Astrophys, Davey Lab 525, University Pk, PA 16802 USA

[20] Penn State Univ, Inst Gravitat & Cosmos, University Pk, PA 16802 USA

[21] Penn State Univ, Dept Phys, University Pk, PA 16802 USA

[22] Univ Arizona, Steward Observ, 933 North Cherry Ave, Tucson, AZ 85721 USA

[23] Max Planck Inst Extraterr Phys, Giessenbachstr, D-85748 Garching, Germany

[24] Univ Autonoma Madrid, Inst Astron, AP 70-264, E-28049 Madrid, Spain

[25] Observ Nacl, Rua Gal Jose Cristino 77, BR-20921400 Rio De Janeiro, RJ, Brazil

[26] LIneA, Rua Gal Jose Cristino 77, BR-20921400 Rio De Janeiro, RJ, Brazil

[27] Aix Marseille Univ, CNRS, IN2P3, CPPM UMR 7346, F-13288 Marseille, France

[28] Univ Colorado, Dept Astrophys & Planetary Sci, Ctr Astrophys & Space Astron, 389 UCB, Boulder, CO 80309 USA

[29] Harvard Univ, Harvard Smithsonian Ctr Astrophys, 60 Garden St, Cambridge, MA 02138 USA

[30] Univ Helsinki, Dept Phys, Gustaf Hallstromin Katu 2a, FI-00014 Helsinki, Finland

[31] Texas Christian Univ, Dept Phys & Astron, 2800 South Univ Dr, Ft Worth, TX 76129 USA

[32] Chinese Acad Sci, Shanghai Astron Observ, 80 Nandan Rd, Shanghai 200030, Peoples R China

[33] Univ Paris 07, Univ Paris 06, LPNHE, CNRS,IN2P3, 4 Pl Jussieu, F-75252 Paris, France

[34] Shanghai Jiao Tong Univ, Dept Phys & Astron, IFSA Collaborat Innovat Ctr, Shanghai 200240, Peoples R China

[35] Leibniz Inst Astrophys Potsdam AIP, Sternwarte 16, D-14482 Potsdam, Germany

[36] CALTECH, Spitzer Sci Ctr, M-S 314-6, Pasadena, CA 91125 USA

[37] Tsinghua Univ, Tsinghua Ctr Astrophys, Beijing 100084, Peoples R China

[38] Univ Sao Paulo, Inst Fis, Dept Fis Matemat, CP 66318, BR-05314970 Sao Paulo, SP, Brazil

[39] Sun Yat Sen Univ, Sch Astron & Space Sci, Guangzhou 510275, Guangdong, Peoples R China

[40] Acad Sinica, Inst Astron & Astrophys, Taipei 10617, Taiwan

[41] Johns Hopkins Univ, Dept Phys & Astron, Ctr Astrophys Sci, 3400 North Charles St, Baltimore, MD 21218 USA

[42] Univ Tokyo, Todai Inst Adv Study, Kavli Inst Phys & Math Universe, Kashiwa, Chiba 2778583, Japan

[43] Univ Andres Bello, Dept Ciencias Fis, Ave Republ 220, Santiago, Chile

[44] Ohio State Univ, Dept Phys, Columbus, OH 43210 USA

[45] Ohio State Univ, Ctr Cosmol & Astroparticle Phys, Columbus, OH 43210 USA

[46] Univ Wyoming, Dept Phys & Astron, Laramie, WY 82071 USA

[47] Univ Pittsburgh, Dept Phys & Astron, Pittsburgh, PA 15260 USA

[48] Univ Pittsburgh, PITT PACC, Pittsburgh, PA 15260 USA

[49] UPMC, CNRS, UMR7095, Inst Astrophys Paris, 98Bis Blvd Arago, F-75014 Paris, France

[50] Univ Calif Berkeley, Dept Astron, Berkeley, CA 94720 USA

来源：

ASTRONOMICAL JOURNAL | 2016年 / 151卷 / 02期

基金：

欧洲研究理事会; 美国国家科学基金会;

关键词：

cosmology: observations; surveys; DIGITAL SKY SURVEY; REDSHIFT-SPACE DISTORTIONS; LY-ALPHA FOREST; QUASAR LUMINOSITY FUNCTION; MAIN GALAXY SAMPLE; DR11 BOSS GALAXIES; MEASURING D-A; ACOUSTIC-OSCILLATIONS; POWER-SPECTRUM; DATA RELEASE;

D O I：

10.3847/0004-6256/151/2/44

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

In a six-year program started in 2014 July, the Extended Baryon Oscillation Spectroscopic Survey (eBOSS) will conduct novel cosmological observations using the BOSS spectrograph at Apache Point Observatory. These observations will be conducted simultaneously with the Time Domain Spectroscopic Survey (TDSS) designed for variability studies and the Spectroscopic Identification of eROSITA Sources (SPIDERS) program designed for studies of X-ray sources. In particular, eBOSS will measure with percent-level precision the distance-redshift relation with baryon acoustic oscillations (BAO) in the clustering of matter. eBOSS will use four different tracers of the underlying matter density field to vastly expand the volume covered by BOSS and map the large-scale-structures over the relatively unconstrained redshift range 0.6 < z < 2.2. Using more than 250,000 new, spectroscopically confirmed luminous red galaxies at a median redshift z = 0.72, we project that eBOSS will yield measurements of the angular diameter distance d(A)(z) to an accuracy of 1.2% and measurements of H(z) to 2.1% when combined with the z > 0.6 sample of BOSS galaxies. With similar to 195,000 new emission line galaxy redshifts, we expect BAO measurements of d(A)(z) to an accuracy of 3.1% and H(z) to 4.7% at an effective redshift of z = 0.87. A sample of more than 500,000 spectroscopically confirmed quasars will provide the first BAO distance measurements over the redshift range 0.9 < z < 2.2, with expected precision of 2.8% and 4.2% on d(A)(z) and H(z), respectively. Finally, with 60,000 new quasars and re-observation of 60,000 BOSS quasars, we will obtain new Lya forest measurements at redshifts z > 2.1; these new data will enhance the precision of d(A)(z) and H(z) at z > 2.1 by a factor of 1.44 relative to BOSS. Furthermore, eBOSS will provide improved tests of General Relativity on cosmological scales through redshift-space distortion measurements, improved tests for non-Gaussianity in the primordial density field, and new constraints on the summed mass of all neutrino species. Here, we provide an overview of the cosmological goals, spectroscopic target sample, demonstration of spectral quality from early data, and projected cosmological constraints from eBOSS.

引用

页数：34

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