Dark Energy Survey: A 2.1 Oscillation scale at redshift z_ eff=0.85 from the final dataset

DES Collaboration,T. M. C. Abbott,M. Adamow,M. Aguena,S. Allam,O. Alves,A. Amon,F. Andrade-Oliveira,J. Asorey,S. Avila,D. Bacon,K. Bechtol,G. M. Bernstein,E. Bertin,J. Blazek,S. Bocquet,D. Brooks,D. L. Burke,H. Camacho,A. Carnero Rosell,D. Carollo,J. Carretero,F. J. Castander,R. Cawthon,K. C. Chan, C. Chang,C. Conselice,M. Costanzi,M. Crocce,L. N. da Costa,M. E. S. Pereira,T. M. Davis,J. De Vicente,N. Deiosso,S. Desai,H. T. Diehl,S. Dodelson,C. Doux,A. Drlica-Wagner,J. Elvin-Poole,S. Everett,I. Ferrero,A. Ferté,B. Flaugher,P. Fosalba,J. Frieman,J. García-Bellido,E. Gaztanaga,G. Giannini,R. A. Gruendl,G. Gutierrez,W. G. Hartley,S. R. Hinton,D. L. Hollowood,K. Honscheid,D. Huterer,D. J. James,S. Kent,K. Kuehn,O. Lahav,S. Lee,C. Lidman,H. Lin, J. L. Marshall,P. Martini,J. Mena-Fernández,F. Menanteau,R. Miquel,J. J. Mohr,J. Myles,R. C. Nichol,R. L. C. Ogando,A. Palmese,W. J. Percival,A. Pieres,A. A. Plazas Malagón,A. Porredon,J. Prat, M. Rodríguez-Monroy,A. K. Romer, A. Roodman,R. Rosenfeld,A. J. Ross,E. S. Rykoff, M. Sako,S. Samuroff,C. Sánchez,E. Sanchez,D. Sanchez Cid,B. Santiago,M. Schubnell,I. Sevilla-Noarbe,E. Sheldon,M. Smith,E. Suchyta,M. E. C. Swanson,G. Tarle,D. Thomas,C. To, L. Toribio San Cipriano,M. A. Troxel,B. E. Tucker,D. L. Tucker,A. R. Walker,N. Weaverdyck,J. Weller,P. Wiseman,B. Yanny

arxiv（2024）

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摘要

We present the angular diameter distance measurement obtained with the Baryonic Acoustic Oscillation feature from galaxy clustering in the completed Dark Energy Survey, consisting of six years (Y6) of observations. We use the Y6 BAO galaxy sample, optimized for BAO science in the redshift range 0.60.75 from any survey and the most precise measurement at any redshift from photometric surveys. The analysis was performed blinded to the BAO position and it is shown to be robust against analysis choices, data removal, redshift calibrations and observational systematics.

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