학술논문

The DESI Experiment Part I: Science,Targeting, and Survey Design
Document Type
Working Paper
Author
DESI CollaborationAghamousa, AmirAguilar, JessicaAhlen, SteveAlam, ShadabAllen, Lori E.Prieto, Carlos AllendeAnnis, JamesBailey, StephenBalland, ChristopheBallester, OtgerBaltay, CharlesBeaufore, LucasBebek, ChrisBeers, Timothy C.Bell, Eric F.Bernal, José LuisBesuner, RobertBeutler, FlorianBlake, ChrisBleuler, HannesBlomqvist, MichaelBlum, RobertBolton, Adam S.Briceno, CesarBrooks, DavidBrownstein, Joel R.Buckley-Geer, ElizabethBurden, AngelaBurtin, EtienneBusca, Nicolas G.Cahn, Robert N.Cai, Yan-ChuanCardiel-Sas, LaiaCarlberg, Raymond G.Carton, Pierre-HenriCasas, RicardCastander, Francisco J.Cervantes-Cota, Jorge L.Claybaugh, Todd M.Close, MadelineCoker, Carl T.Cole, ShaunComparat, JohanCooper, Andrew P.Cousinou, M. -C.Crocce, MartinCuby, Jean-GabrielCunningham, Daniel P.Davis, Tamara M.Dawson, Kyle S.de la Macorra, AxelDe Vicente, JuanDelubac, TimothéeDerwent, MarkDey, ArjunDhungana, GovindaDing, ZhejieDoel, PeterDuan, Yutong T.Ealet, AnneEdelstein, JerryEftekharzadeh, SarahEisenstein, Daniel J.Elliott, AnnEscoffier, StéphanieEvatt, MatthewFagrelius, ParkerFan, XiaohuiFanning, KevinFarahi, AryaFarihi, JayFavole, GinevraFeng, YuFernandez, EnriqueFindlay, Joseph R.Finkbeiner, Douglas P.Fitzpatrick, Michael J.Flaugher, BrennaFlender, SamuelFont-Ribera, AndreuForero-Romero, Jaime E.Fosalba, PabloFrenk, Carlos S.Fumagalli, MicheleGaensicke, Boris T.Gallo, GiuseppeGarcia-Bellido, JuanGaztanaga, EnriqueFusillo, Nicola Pietro GentileGerard, TerryGershkovich, IrenaGiannantonio, TommasoGillet, DenisGonzalez-de-Rivera, GuillermoGonzalez-Perez, VioletaGott, ShelbyGraur, OrGutierrez, GastonGuy, JulienHabib, SalmanHeetderks, HenryHeetderks, IanHeitmann, KatrinHellwing, Wojciech A.Herrera, David A.Ho, ShirleyHolland, StephenHonscheid, KlausHuff, EricHutchinson, Timothy A.Huterer, DraganHwang, Ho SeongLaguna, Joseph Maria IllaIshikawa, YuzoJacobs, DiannaJeffrey, NiallJelinsky, PatrickJennings, EliseJiang, LinhuaJimenez, JorgeJohnson, JenniferJoyce, RichardJullo, EricJuneau, StéphanieKama, SamiKarcher, ArminKarkar, SoniaKehoe, RobertKennamer, NobleKent, StephenKilbinger, MartinKim, Alex G.Kirkby, DavidKisner, TheodoreKitanidis, EllieKneib, Jean-PaulKoposov, SergeyKovacs, EveKoyama, KazuyaKremin, AnthonyKron, RichardKronig, LuziusKueter-Young, AndreaLacey, Cedric G.Lafever, RobinLahav, OferLambert, AndrewLampton, MichaelLandriau, MartinLang, DustinLauer, Tod R.Goff, Jean-Marc LeGuillou, Laurent LeVan Suu, Auguste LeLee, Jae HyeonLee, Su-JeongLeitner, DanielaLesser, MichaelLevi, Michael E.L'Huillier, BenjaminLi, BaojiuLiang, MingLin, HuanLinder, EricLoebman, Sarah R.Lukić, ZarijaMa, JunMacCrann, NiallMagneville, ChristopheMakarem, LalehManera, MarcManser, Christopher J.Marshall, RobertMartini, PaulMassey, RichardMatheson, ThomasMcCauley, JeremyMcDonald, PatrickMcGreer, Ian D.Meisner, AaronMetcalfe, NigelMiller, Timothy N.Miquel, RamonMoustakas, JohnMyers, AdamNaik, MilindNewman, Jeffrey A.Nichol, Robert C.Nicola, Andrinada Costa, Luiz NicolatiNie, JundanNiz, GustavoNorberg, PederNord, BrianNorman, DaraNugent, PeterO'Brien, ThomasOh, MinjiOlsen, Knut A. G.Padilla, CristobalPadmanabhan, HamsaPadmanabhan, NikhilPalanque-Delabrouille, NathaliePalmese, AntonellaPappalardo, DanielPâris, IsabellePark, ChangbomPatej, AnnaPeacock, John A.Peiris, Hiranya V.Peng, XiyanPercival, Will J.Perruchot, SandrinePieri, Matthew M.Pogge, RichardPollack, Jennifer E.Poppett, ClairePrada, FranciscoPrakash, AbhishekProbst, Ronald G.Rabinowitz, DavidRaichoor, AnandRee, Chang HeeRefregier, AlexandreRegal, XavierReid, BethReil, KevinRezaie, MehdiRockosi, Constance M.Roe, NatalieRonayette, SamuelRoodman, AaronRoss, Ashley J.Ross, Nicholas P.Rossi, GrazianoRozo, EduardoRuhlmann-Kleider, VaninaRykoff, Eli S.Sabiu, CristianoSamushia, LadoSanchez, EusebioSanchez, JavierSchlegel, David J.Schneider, MichaelSchubnell, MichaelSecroun, AuréliaSeljak, UrosSeo, Hee-JongSerrano, SantiagoShafieloo, ArmanShan, HuanyuanSharples, RaySholl, Michael J.Shourt, William V.Silber, Joseph H.Silva, David R.Sirk, Martin M.Slosar, AnzeSmith, AlexSmoot, George F.Som, DebopamSong, Yong-SeonSprayberry, DavidStaten, RyanStefanik, AndyTarle, GregoryTie, Suk SienTinker, Jeremy L.Tojeiro, RitaValdes, FranciscoValenzuela, OctavioValluri, MonicaVargas-Magana, MarianaVerde, LiciaWalker, Alistair R.Wang, JialiWang, YutingWeaver, Benjamin A.Weaverdyck, CurtisWechsler, Risa H.Weinberg, David H.White, MartinYang, QianYeche, ChristopheZhang, TianmengZhao, Gong-BoZheng, YiZhou, XuZhou, ZhiminZhu, YalingZou, HuZu, Ying
Source
Subject
Astrophysics - Instrumentation and Methods for Astrophysics
Astrophysics - Cosmology and Nongalactic Astrophysics
Language
Abstract
DESI (Dark Energy Spectroscopic Instrument) is a Stage IV ground-based dark energy experiment that will study baryon acoustic oscillations (BAO) and the growth of structure through redshift-space distortions with a wide-area galaxy and quasar redshift survey. To trace the underlying dark matter distribution, spectroscopic targets will be selected in four classes from imaging data. We will measure luminous red galaxies up to $z=1.0$. To probe the Universe out to even higher redshift, DESI will target bright [O II] emission line galaxies up to $z=1.7$. Quasars will be targeted both as direct tracers of the underlying dark matter distribution and, at higher redshifts ($ 2.1 < z < 3.5$), for the Ly-$\alpha$ forest absorption features in their spectra, which will be used to trace the distribution of neutral hydrogen. When moonlight prevents efficient observations of the faint targets of the baseline survey, DESI will conduct a magnitude-limited Bright Galaxy Survey comprising approximately 10 million galaxies with a median $z\approx 0.2$. In total, more than 30 million galaxy and quasar redshifts will be obtained to measure the BAO feature and determine the matter power spectrum, including redshift space distortions.