2024AJ....167...62D

Query : 2024AJ....167...62D

2024AJ....167...62D - Astron. J., 167, 62 (2024/February-0)

Validation of the Scientific Program for the Dark Energy Spectroscopic Instrument.

DESI COLLABORATION, ADAME A.G., AGUILAR J., AHLEN S., ALAM S., ALDERING G., ALEXANDER D.M., ALFARSY R., ALLENDE PRIETO C., ALVAREZ M., ALVES O., ANAND A., ANDRADE-OLIVEIRA F., ARMENGAUD E., ASOREY J., AVILA S., AVILES A., BAILEY S., BALAGUERA-ANTOLINEZ A., BALLESTER O., BALTAY C., BAULT A., BAUTISTA J., BEHERA J., BELTRAN S.F., BENZVI S., BERALDO E SILVA L., BERMEJO-CLIMENT J.R., BERTI A., BESUNER R., BEUTLER F., BIANCHI D., BLAKE C., BLUM R., BOLTON A.S., BRIEDEN S., BRODZELLER A., BROOKS D., BROWN Z., BUCKLEY-GEER E., BURTIN E., CABAYOL-GARCIA L., CAI Z., CANNING R., CARDIEL-SAS L., CARNERO ROSELL A., CASTANDER F.J., CERVANTES-COTA J.L., CHABANIER S., CHAUSSIDON E., CHAVES-MONTERO J., CHEN S., CHEN X., CHUANG C., CLAYBAUGH T., COLE S., COOPER A.P., CUCEU A., DAVIS T.M., DAWSON K., DE BELSUNCE R., DE LA CRUZ R., DE LA MACORRA A., DE MATTIA A., DEMINA R., DEMIRBOZAN U., DEROSE J., DEY A., DEY B., DHUNGANA G., DING J., DING Z., DOEL P., DOSHI R., DOUGLASS K., EDGE A., EFTEKHARZADEH S., EISENSTEIN D.J., ELLIOTT A., ESCOFFIER S., FAGRELIUS P., FAN X., FANNING K., FAWCETT V.A., FERRARO S., EREZA J., FLAUGHER B., FONT-RIBERA A., FORERO-SANCHEZ D., FORERO-ROMERO J.E., FRENK C.S., GANSICKE B.T., GARCIA L.A., GARCIA-BELLIDO J., GARCIA-QUINTERO C., GARRISON L.H., GIL-MARIN H., GOLDEN-MARX J., GONTCHO A GONTCHO S., GONZALEZ-MORALES A.X., GONZALEZ-PEREZ V., GORDON C., GRAUR O., GREEN D., GRUEN D., GUY J., HADZHIYSKA B., HAHN C., HAN J.J., HANIF M.M.S., HERRERA-ALCANTAR H.K., HONSCHEID K., HOU J., HOWLETT C., HUTERER D., IRSIC V., ISHAK M., JANA A., JIANG L., JIMENEZ J., JING Y.P., JOUDAKI S., JULLO E., JOYCE R., JUNEAU S., KIZHUPRAKKAT N., KARACAYLI N.G., KARIM T., KEHOE R., KENT S., KHEDERLARIAN A., KIM S., KIRKBY D., KISNER T., KITAURA F., KNEIB J., KOPOSOV S.E., KOVACS A., KREMIN A., KROLEWSKI A., L'HUILLIER B., LAHAV O., LAMBERT A., LAMMAN C., LAN T.-W., LANDRIAU M., LANG D., LANGE J.U., LASKER J., LE GUILLOU L., LEAUTHAUD A., LEVI M.E., LI T.S., LINDER E., LYONS A., MAGNEVILLE C., MANERA M., MANSER C.J., MARGALA D., MARTINI P., McDONALD P., MEDINA G.E., MEDINA-VARELA L., MEISNER A., MENA-FERNANDEZ J., MENESES-RIZO J., MEZCUA M., MIQUEL R., MONTERO-CAMACHO P., MOON J., MOORE S., MOUSTAKAS J., MUELLER E., MUNDET J., MUNOZ-GUTIERREZ A., MYERS A.D., NADATHUR S., NAPOLITANO L., NEVEUX R., NEWMAN J.A., NIE J., NIZ G., NORBERG P., NORIEGA H.E., PAILLAS E., PALANQUE-DELABROUILLE N., PALMESE A., PAN Z., PARKINSON D., PENMETSA S., PERCIVAL W.J., PEREZ-FERNANDEZ A., PEREZ-RAFOLS I., PIERI M., POPPETT C., PORREDON A., PRADA F., PUCHA R., RAICHOOR A., RAMIREZ-PEREZ C., RAMIREZ-SOLANO S., RASHKOVETSKYI M., RAVOUX C., ROCHER A., ROCKOSI C., ROSS A.J., ROSSI G., RUGGERI R., RUHLMANN-KLEIDER V., SABIU C.G., SAID K., SAINTONGE A., SAMUSHIA L., SANCHEZ E., SAULDER C., SCHAAN E., SCHLAFLY E.F., SCHLEGEL D., SCHOLTE D., SCHUBNELL M., SEO H., SHAFIELOO A., SHARPLES R., SHEU W., SILBER J., SINIGAGLIA F., SIUDEK M., SLEPIAN Z., SMITH A., SPRAYBERRY D., STEPHEY L., SUAREZ-PEREZ J., SUN Z., TAN T., TARLE G., TOJEIRO R., URENA-LOPEZ L.A., VAISAKH R., VALCIN D., VALDES F., VALLURI M., VARGAS-MAGANA M., VARIU A., VERDE L., WALTHER M., WANG B., WANG M.S., WEAVER B.A., WEAVERDYCK N., WECHSLER R.H., WHITE M., XIE Y., YANG J., YECHE C., YU J., YUAN S., ZHANG H., ZHANG Z., ZHAO C., ZHENG Z., ZHOU R., ZHOU Z., ZOU H., ZOU S. and ZU Y.

Abstract (from CDS):

The Dark Energy Spectroscopic Instrument (DESI) was designed to conduct a survey covering 14,000 deg2 over 5 yr to constrain the cosmic expansion history through precise measurements of baryon acoustic oscillations (BAO). The scientific program for DESI was evaluated during a 5 month survey validation (SV) campaign before beginning full operations. This program produced deep spectra of tens of thousands of objects from each of the stellar Milky Way Survey (MWS), Bright Galaxy Survey (BGS), luminous red galaxy (LRG), emission line galaxy (ELG), and quasar target classes. These SV spectra were used to optimize redshift distributions, characterize exposure times, determine calibration procedures, and assess observational overheads for the 5 yr program. In this paper, we present the final target selection algorithms, redshift distributions, and projected cosmology constraints resulting from those studies. We also present a One-Percent Survey conducted at the conclusion of SV covering 140 deg2 using the final target selection algorithms with exposures of a depth typical of the main survey. The SV indicates that DESI will be able to complete the full 14,000 deg2 program with spectroscopically confirmed targets from the MWS, BGS, LRG, ELG, and quasar programs with total sample sizes of 7.2, 13.8, 7.46, 15.7, and 2.87 million, respectively. These samples will allow exploration of the Milky Way halo, clustering on all scales, and BAO measurements with a statistical precision of 0.28% over the redshift interval z < 1.1, 0.39% over the redshift interval 1.1 < z < 1.9, and 0.46% over the redshift interval 1.9 < z < 3.5.

Abstract Copyright: © 2024. The Author(s). Published by the American Astronomical Society.

Journal keyword(s): Cosmology - Redshift surveys

Simbad objects: 4

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Number of rows : 4
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 NAME COSMOS Field reg 10 00 28.60 +02 12 21.0           ~ 3639 0
2 NAME GOODS-N Field reg 12 36 55.0 +62 14 15           ~ 1364 1
3 ACO 1656 ClG 12 59 44.40 +27 54 44.9           ~ 5141 2
4 ELAIS N1 reg 16 10 01 +54 30.6           ~ 489 0

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