THE SDSS-IV EXTENDED BARYON OSCILLATION SPECTROSCOPIC SURVEY: OVERVIEW AND EARLY DATA
Kyle DawsonDepartment of Physics and Astronomy, University of Utah, Salt Lake City, UT 84112, USA;Jean‐Paul KneibAix Marseille Universit, CNRS, LAM (Laboratoire d'Astrophysique de Marseille), UMR 7326, F-13388, Marseille, FranceWill J. PercivalInstitute of Cosmology & Gravitation, Dennis Sciama Building, University of Portsmouth, Portsmouth, PO1 3FX, UKShadab AlamBruce and Astrid McWilliams Center for Cosmology, Department of Physics, Carnegie Mellon University, 5000 Forbes Ave, Pittsburgh, PA 15213, USAFranco D. AlbaretiInstituto de Fsica Terica, (UAM/CSIC), Universidad Autnoma de Madrid, Cantoblanco, E-28049 Madrid, SpainScott F. AndersonDepartment of Astronomy, University of Washington, Box 351580, Seattle, WA 98195, USAE. ArmengaudCEA, Centre de Saclay, Irfu/SPP, F-91191 Gif-sur-Yvette, FranceÉ. AubourgAPC, University of Paris Diderot, CNRS/IN2P3, CEA/IRFU, Observatoire de Paris, Sorbonne Paris Cite, FranceS. BaileyLawrence Berkeley National Laboratory, One Cyclotron Road, Berkeley, CA 94720, USAJulian BautistaDepartment of Physics and Astronomy, University of Utah, Salt Lake City, UT 84112, USA;Andreas A. BerlindDepartment of Physics and Astronomy, Vanderbilt University, PMB 401807, 2401 Vanderbilt Place, Nashville, TN 37240, USAMatthew A. BershadyUniversity of Wisconsin-Madison, Department of Astronomy, 475 N. Charter St., Madison WI 53703, USAFlorian BeutlerLawrence Berkeley National Laboratory, One Cyclotron Road, Berkeley, CA 94720, USADmitry BizyaevSternberg Astronomical Institute, Moscow State University, Moscow, RussiaMichael R. BlantonCenter for Cosmology and Particle Physics, Department of Physics, New York University, 4 Washington Place, New York, NY 10003, USAMichael BlomqvistDepartment of Physics and Astronomy, University of California, Irvine, CA 92697, USAA. BoltonDepartment of Physics and Astronomy, University of Utah, Salt Lake City, UT 84112, USA;Jo BovyDepartment of Astronomy and Astrophysics, University of Toronto, 50 St. George Street, Toronto, ON, M5S 3H4, CanadaW. N. BrandtInstitute for Gravitation and the Cosmos, The Pennsylvania State University, University Park, PA 16802, USAJ. BrinkmannApache Point Observatory, P.O. Box 59, sunspot, NM 88349, USAJoel R. BrownsteinDepartment of Physics and Astronomy, University of Utah, Salt Lake City, UT 84112, USA;E. BurtinCEA, Centre de Saclay, Irfu/SPP, F-91191 Gif-sur-Yvette, FranceNicolás G. BuscaAPC, University of Paris Diderot, CNRS/IN2P3, CEA/IRFU, Observatoire de Paris, Sorbonne Paris Cite, FranceZheng CaiChia-Hsun ChuangInstituto de Fsica Terica, (UAM/CSIC), Universidad Autnoma de Madrid, Cantoblanco, E-28049 Madrid, SpainNicolas ClercMax-Planck-Institut fr Extraterrestrische Physik, Giessenbachstrae, D-85748 Garching, GermanyJohan ComparatDepartamento de Fisica Teorica, Universidad Autnoma de Madrid, Cantoblanco, E-28049 Madrid, SpainFrances CopeApache Point Observatory, P.O. Box 59, sunspot, NM 88349, USARupert A. C. CroftBruce and Astrid McWilliams Center for Cosmology, Department of Physics, Carnegie Mellon University, 5000 Forbes Ave, Pittsburgh, PA 15213, USAI. Cruz-GonzálezInstituto de Astronoma, Universidad Nacional Autonoma de Mexico, A.P. 70-264, 04510, D.F., MexicoL. N. da CostaLaboratrio Interinstitucional de e-Astronomia,-LIneA, Rua Gal.Jos Cristino 77, Rio de Janeiro, RJ-20921-400, BrazilMarie-Claude CousinouAix-Marseille Universit, CNRS/IN2P3, CPPM UMR 7346, F-13288 Marseille, FranceJeremy DarlingCenter for Astrophysics and Space Astronomy, Department of Astrophysical and Planetary Sciences, University of Colorado, 389 UCB, Boulder, CO 80309, USA 30 Harvard-Smithsonian Center for Astrophysics, Harvard University, 60 Garden St., Cambridge MA 02138, USA 31 Department of Physics, University of Helsinki, Gustaf Hllstrmin katu 2a, FI-00014 Helsinki, Finland 32 Dept. of Physics & Astronomy, Texas Christian University, 2800 South University Dr., Fort Worth, TX 76129, USA 33 Shanghai Astronomical Observatory, Chinese Academy of Science, 80 Nandan Road, Shanghai 200030, China 34 LPNHE, CNRS/IN2P3, Universit Pierre et Marie Curie Paris 6, Universit Denis Diderot Paris 7, 4 place Jussieu, F-75252 Paris CEDEX, FranceAxel de la MacorraInstituto de Astronoma, Universidad Nacional Autonoma de Mexico, A.P. 70-264, 04510, D.F., MexicoSylvain de la TorreAix Marseille Universit, CNRS, LAM (Laboratoire d'Astrophysique de Marseille), UMR 7326, F-13388, Marseille, FranceTimothée DelubacLaboratoire dstrophysique, Ecole Polytechnique Fdrale de Lausanne Observatoire de Sauverny, 1290 Versoix, SwitzerlandHélion du Mas des BourbouxCEA, Centre de Saclay, Irfu/SPP, F-91191 Gif-sur-Yvette, FranceT. DwellyMax-Planck-Institut fr Extraterrestrische Physik, Giessenbachstrae, D-85748 Garching, GermanyAnne EaletAix-Marseille Universit, CNRS/IN2P3, CPPM UMR 7346, F-13288 Marseille, FranceDaniel J. EisensteinHarvard-Smithsonian Center for Astrophysics, Harvard University, 60 Garden St., Cambridge MA 02138, USAMichael EracleousDepartment of Physics, The Pennsylvania State University, University Park, PA 16802, USAS. EscoffierAix-Marseille Universit, CNRS/IN2P3, CPPM UMR 7346, F-13288 Marseille, FranceXiaohui FanA. FinoguenovDepartment of Physics, University of Helsinki, Gustaf Hällströmin katu 2a, FI-00014 Helsinki, FinlandAndreu Font-RiberaLawrence Berkeley National Laboratory, One Cyclotron Road, Berkeley, CA 94720, USAPeter M. FrinchaboyDept. of Physics & Astronomy, Texas Christian University, 2800 South University Dr., Fort Worth, TX 76129, USAP. GaulmeApache Point Observatory, P.O. Box 59, sunspot, NM 88349, USAA. GeorgakakisMax-Planck-Institut fr Extraterrestrische Physik, Giessenbachstrae, D-85748 Garching, GermanyPaul GreenHarvard-Smithsonian Center for Astrophysics, Harvard University, 60 Garden St., Cambridge MA 02138, USAHong GuoShanghai Astronomical Observatory, Chinese Academy of Science, 80 Nandan Road, Shanghai 200030, ChinaJulien GuyLPNHE, CNRS/IN2P3, Université Pierre et Marie Curie Paris 6, Université Denis Diderot Paris 7, 4 place Jussieu, F-75252 Paris CEDEX, FranceShirley HoBruce and Astrid McWilliams Center for Cosmology, Department of Physics, Carnegie Mellon University, 5000 Forbes Ave, Pittsburgh, PA 15213, USADiana HolderApache Point Observatory, P.O. Box 59, sunspot, NM 88349, USAJoe HuehnerhoffApache Point Observatory, P.O. Box 59, sunspot, NM 88349, USATimothy A. HutchinsonDepartment of Physics and Astronomy, University of Utah, Salt Lake City, UT 84112, USAYipeng JingIFSA Collaborative Innovation Center, Department of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai, 200240, ChinaEric JulloAix Marseille Université, CNRS, LAM (Laboratoire d'Astrophysique de Marseille), UMR 7326, F-13388, Marseille, FranceVikrant KambleDepartment of Physics and Astronomy, University of Utah, Salt Lake City, UT 84112, USAKaren KinemuchiDepartment of Astronomy, MSC 4500, New Mexico State University, P.O. Box 30001, Las Cruces, NM 88003, USAD. KirkbyDepartment of Physics and Astronomy, University of California, Irvine, CA 92697, USAFrancisco-Shu KitauraLeibniz-Institut fr Astrophysik Potsdam (AIP), An der Sternwarte 16, D-14482 Potsdam, GermanyMark A. KlaeneApache Point Observatory, P.O. Box 59, sunspot, NM 88349, USARuss R. LaherSpitzer Science Center, California Institute of Technology, M/S 314-6, Pasadena, CA 91125, USADustin LangBruce and Astrid McWilliams Center for Cosmology, Department of Physics, Carnegie Mellon University, 5000 Forbes Ave, Pittsburgh, PA 15213, USAPierre LaurentCEA, Centre de Saclay, Irfu/SPP, F-91191 Gif-sur-Yvette, FranceJean-Marc Le GoffCEA, Centre de Saclay, Irfu/SPP, F-91191 Gif-sur-Yvette, FranceCheng LiShanghai Astronomical Observatory, Chinese Academy of Science, 80 Nandan Road, Shanghai 200030, ChinaYu LiangTsinghua Center for Astrophysics, Tsinghua University, Beijing 100084, ChinaM. LimaDepartamento de Fsica Matemtica, Instituto de Fsica, Universidade de So Paulo, CP 66318, CEP 05314-970, So Paulo, SP, BrazilQiufan LinTsinghua Center for Astrophysics, Tsinghua University, Beijing 100084, ChinaWeipeng LinSchool of Astronomy and Space Science, Sun Yat-sen University, Guangzhou, 510275, ChinaYen‐Ting LinInstitute of Astronomy and Astrophysics, Academia Sinica, Taipei 10617, TaiwanDaniel C. LongApache Point Observatory, P.O. Box 59, sunspot, NM 88349, USABritt LundgrenNSF Astronomy & Astrophysics, Postdoctoral FellowNicholas MacDonaldDepartment of Astronomy, University of Washington, Box 351580, Seattle, WA 98195, USAM. A. G. MaiaObservatório Nacional, Rua Gal. José Cristino 77, Rio de Janeiro, RJ—20921-400, BrazilElena MalanushenkoApache Point Observatory, P.O. Box 59, sunspot, NM 88349, USAViktor MalanushenkoDepartment of Astronomy, MSC 4500, New Mexico State University, P.O. Box 30001, Las Cruces, NM 88003, USAVivek MariappanDepartment of Physics and Astronomy, University of Utah, Salt Lake City, UT 84112, USACameron K. McBrideHarvard-Smithsonian Center for Astrophysics, Harvard University, 60 Garden St., Cambridge MA 02138, USAIan D. McGreerBrice MénardKavli Institute for the Physics and Mathematics of the Universe, Todai Institutes for Advanced Study, The University of Tokyo, Kashiwa, 277-8583, JapanA. MerloniMax-Planck-Institut für Extraterrestrische Physik, Giessenbachstraße, D-85748 Garching, GermanyAndrés MezaDepartamento de Ciencias Fisicas, Universidad Andres Bello, Av. Republica 220, Santiago, ChileAntonio D. Montero-DortaDepartment of Physics and Astronomy, University of Utah, Salt Lake City, UT 84112, USADemitri MunaDepartment of Physics and Center for Cosmology and Astro-Particle Physics, Ohio State University, Columbus, OH 43210, USAAdam D. MyersDepartment of Physics and Astronomy, University of Wyoming, Laramie, WY 82071, USAK. NandraMax-Planck-Institut für Extraterrestrische Physik, Giessenbachstraße, D-85748 Garching, GermanyTracy NaugleApache Point Observatory, P.O. Box 59, sunspot, NM 88349, USAJeffrey A. NewmanDepartment of Physics and Astronomy and PITT PACC, University of Pittsburgh, Pittsburgh, PA 15260, USAP. NoterdaemeUPMC-CNRS, UMR7095, Institut dAstrophysique de Paris, 98bis Boulevard Arago, F-75014, Paris, FranceP. NugentDepartment of Astronomy, University of California, Berkeley, CA 94720, USAR. L. C. OgandoLaboratório Interinstitucional de e-Astronomia,—LIneA, Rua Gal. José Cristino 77, Rio de Janeiro, RJ—20921-400, BrazilMatthew D. OlmsteadDepartment of Chemistry and Physics, Kings College, Wilkes Barre, PA, 18711, USAAudrey OravetzDepartment of Astronomy, MSC 4500, New Mexico State University, P.O. Box 30001, Las Cruces, NM 88003, USADaniel OravetzDepartment of Astronomy, MSC 4500, New Mexico State University, P.O. Box 30001, Las Cruces, NM 88003, USANikhil PadmanabhanYale Center for Astronomy and Astrophysics, Yale University, New Haven, CT, 06520, USAN. Palanque‐DelabrouilleCEA, Centre de Saclay, Irfu/SPP, F-91191 Gif-sur-Yvette, FranceKaike PanDepartment of Astronomy, MSC 4500, New Mexico State University, P.O. Box 30001, Las Cruces, NM 88003, USAJohn K. ParejkoYale Center for Astronomy and Astrophysics, Yale University, New Haven, CT, 06520, USA
2016en
ABI
Аннотация
ABSTRACT 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 ∼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 Ly α 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.
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