Baryon acoustic oscillation theory and modelling systematics for the DESI 2024 results

被引：4

作者：

Chen, S. -F ^{[1
]}

Howlett, C. ^{[2
]}

White, M. ^{[3
,4
]}

McDonald, P. ^{[4
]}

Ross, A. J. ^{[5
]}

Seo, H. -J ^{[6
]}

Padmanabhan, N. ^{[7
]}

Aguilar, J. ^{[4
]}

Ahlen, S. ^{[8
]}

Alam, S. ^{[9
]}

Alves, O. ^{[10
]}

Andrade, U. ^{[10
,11
]}

Blum, R. ^{[12
]}

Brooks, D. ^{[13
]}

Chen, X. ^{[7
]}

Cole, S. ^{[14
]}

Dawson, K. ^{[15
]}

de la Macorra, A. ^{[16
]}

Dey, A. ^{[12
]}

Ding, Z. ^{[17
]}

Doel, P. ^{[13
]}

Ferraro, S. ^{[4
,18
]}

Font-Ribera, A. ^{[13
,19
]}

Forero-Sanchez, D. ^{[20
]}

Forero-Romero, J. E. ^{[21
,22
]}

Garcia-Quintero, C. ^{[23
,24
]}

Gaztanaga, E. ^{[25
,26
,27
]}

Gontcho, S. G. A. ^{[4
]}

Hanif, M. M. S. ^{[10
]}

Honscheid, K. ^{[5
,28
,29
]}

Kisner, T. ^{[4
]}

Kremin, A. ^{[4
]}

Lambert, A. ^{[4
]}

Landriau, M. ^{[4
]}

Levi, M. E. ^{[4
]}

Manera, M. ^{[19
,20
,30
]}

Meisner, A. ^{[12
]}

Mena-Fernandez, J. ^{[31
]}

Miquel, R. ^{[19
,32
]}

Munoz-Gutierrez, A. ^{[16
]}

Paillas, E. ^{[33
,34
]}

Palanque-Delabrouille, N. ^{[4
,35
]}

Percival, W. J. ^{[33
,34
,36
]}

Perez-Fernandez, A. ^{[16
,37
]}

Prada, F. ^{[38
]}

Rashkovetskyi, M. ^{[23
]}

Rezaie, M. ^{[39
]}

Rosado-Marin, A. ^{[6
]}

Rossi, G. ^{[40
]}

Ruggeri, R. ^{[2
,41
]}

机构：

[1] Inst Adv Study, 1 Einstein Dr, Princeton, NJ 08540 USA

[2] Univ Queensland, Sch Math & Phys, Brisbane, Qld 4072, Australia

[3] Univ Calif Berkeley, Dept Phys, 366 Le Conte Hall,MC 7300, Berkeley, CA 94720 USA

[4] Lawrence Berkeley Natl Lab, 1 Cyclotron Rd, Berkeley, CA 94720 USA

[5] Ohio State Univ, Ctr Cosmol & Astroparticle Phys, 191 West Woodruff Ave, Columbus, OH 43210 USA

[6] Ohio Univ, Dept Phys & Astron, Athens, OH 45701 USA

[7] Yale Univ, Phys Dept, POB 208120, New Haven, CT 06511 USA

[8] Boston Univ, Phys Dept, 590 Commonwealth Ave, Boston, MA 02215 USA

[9] Tata Inst Fundamental Res, Dept Theoret Phys, Homi Bhabha Rd, Mumbai 400005, India

[10] Univ Michigan, Dept Phys, Ann Arbor, MI 48109 USA

[11] Univ Michigan, Leinweber Ctr Theoret Phys, 450 Church St, Ann Arbor, MI 48109 USA

[12] NSF NOIRLab, 950 N Cherry Ave, Tucson, AZ 85719 USA

[13] UCL, Dept Phys & Astron, Gower St, London WC1E 6BT, England

[14] Univ Durham, Inst Computat Cosmol, Dept Phys, South Rd, Durham DH1 3LE, England

[15] Univ Utah, Dept Phys & Astron, 115 South 1400 East, Salt Lake City, UT 84112 USA

[16] Univ Nacl Autonoma Mexico, Inst Ingn, Cd Mexico, Mexico City 04510, Mexico

[17] Shanghai Jiao Tong Univ, Sch Phys & Astron, Dept Astron, Shanghai 200240, Peoples R China

[18] Univ Calif Berkeley, Berkeley Ctr Cosmol Phys, Dept Phys, 110 Sproul Hall 5800, Berkeley, CA 94720 USA

[19] Barcelona Inst Sci & Technol, Inst Fis OAltes Energies IFAE, Campus UAB, E-08193 Barcelona, Spain

[20] Ecole Polytech Fed Lausanne, Inst Phys, Lab Astrophys, CH-1015 Lausanne, Switzerland

[21] Univ Los Andes, Dept Fis, 1 18A-10,Edificio Ip, Bogota 111711, Colombia

[22] Univ Los Andes, Observ Astron, Cra 1 18A-10,Edificio H, Bogota 111711, Colombia

[23] Ctr Astrophys Harvard & Smithsonian, 60 Garden St, Cambridge, MA 02138 USA

[24] Univ Texas Dallas, Dept Phys, Richardson, TX 75080 USA

[25] Inst Estudis Espacials Catalunya IEEC, E-08034 Barcelona, Spain

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

[27] ICE CSIC, Inst Space Sci, Campus UAB,Carrer Can Magrans S-N, E-08193 Barcelona, Spain

[28] Ohio State Univ, Dept Phys, 191 West Woodruff Ave, Columbus, OH 43210 USA

[29] Ohio State Univ, Columbus, OH 43210 USA

[30] Univ Autonoma Barcelona, Dept Fis, Serra Hunter, E-08193 Bellaterra, Barcelona, Spain

[31] Lab Phys Subat & Cosmol, 53 Ave Martyrs, F-38000 Grenoble, France

[32] Institucio Catalana Recerca & Estudis Avancats, Passeig Lluis Co 23, E-08010 Barcelona, Spain

[33] Univ Waterloo, Dept Phys & Astron, 200 Univ Ave W, Waterloo, ON N2L 3G1, Canada

[34] Univ Waterloo, Waterloo Ctr Astrophys, Dept Phys & Astron, 200 Univ Ave W, Waterloo, ON N2L 3G1, Canada

[35] Univ Paris Saclay, IRFU, CEA, F-91191 Gif Sur Yvette, France

[36] Perimeter Inst Theoret Phys, 31 Caroline St, Waterloo, ON N2L 2Y5, Canada

[37] Max Planck Inst Extraterr Phys, Giessenbachstr 1, D-85748 Garching, Germany

[38] CSIC, Inst Astrofis Andalucia, Glorieta Astron S-N, E-18008 Granada, Spain

[39] Kansas State Univ, Dept Phys, 116 Cardwell Hall, Manhattan, KS 66506 USA

[40] Sejong Univ, Dept Phys & Astron, Seoul 143747, South Korea

[41] Swinburne Univ Technol, Ctr Astrophys & Supercomp, POB 218, Hawthorn, Vic 3122, Australia

[42] CIEMAT, Ave Complutense 40, E-28040 Madrid, Spain

[43] SLAC Natl Accelerator Lab, Menlo Pk, CA 94305 USA

[44] Chinese Acad Sci, Natl Astron Observ, A20 Datun Rd, Beijing 100012, Peoples R China

来源：

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY | 2024年 / 534卷 / 01期

基金：

美国国家科学基金会; 澳大利亚研究理事会;

关键词：

cosmological parameters; distance scale; large-scale structure of Universe; cosmology: theory; SPECTROSCOPIC SURVEY MEASUREMENT; BODY SIMULATION PROJECT; POWER-SPECTRUM ANALYSIS; RED GALAXY SAMPLE; PERTURBATION-THEORY; RELATIVE VELOCITY; REDSHIFTS; 0.6; CENT DISTANCE; GROWTH-RATE; SCALE;

D O I：

10.1093/mnras/stae2090

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

This paper provides a comprehensive overview of how fitting of baryon acoustic oscillations (BAO) is carried out within the upcoming Dark Energy Spectroscopic Instrument's (DESI) 2024 results using its DR1 data set, and the associated systematic error budget from theory and modelling of the BAO. We derive new results showing ho w non-linearities in the clustering of galaxies can cause potential biases in measurements of the isotropic (alpha(iso)) and anisotropic (alpha(ap)) BAO distance scales, and how these can be effectively removed with an appropriate choice of reconstruction algorithm. We then demonstrate how theory leads to a clear choice for how to model the BAO and develop, implement, and validate a new model for the remaining smooth-broad-band (i.e. without BAO) component of the galaxy clustering. Finally, we explore the impact of all remaining modelling choices on the BAO constraints from DESI using a suite of high-precision simulations, arriving at a set of best practices for DESI BAO fits, and an associated theory and modelling systematic error. Overall, our results demonstrate the remarkable robustness of the BAO to all our modelling choices and moti v ate a combined theory and modelling systematic error contribution to the post-reconstruction DESI BAO measurements of no more than 0.1 per cent (0.2 per cent) for its isotropic (anisotropic) distance measurements. We expect the theory and best practices laid out to here to be applicable to other BAO experiments in the era of DESI and beyond.

引用

页码：544 / 574

页数：31

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