Validation of the Scientific Program for the Dark Energy Spectroscopic Instrument

作者：DESI Collaboration, Adame, A. G., J. Aguilar, S. P. Ahlen, Shadab Alam, G Aldering, Alexander, D. M., R. Alfarsy, Carlos Allende Prieto, Míriam J. Álvarez, O. Alves, Abhijeet Anand, F. Andrade-Oliveira, E. Armengaud, J. Asorey, S. Àvila, Alejandro Avilés, S. Bailey, A. Balaguera-Antolínez, O. Ballester, C. Baltay, A. Bault, Julian Bautista, J. Behera, Beltran, S. F., S. BenZvi, Leandro Beraldo e Silva, Bermejo-Climent, J. R., A. Berti, Robert Besuner, Florian Beutler, D. Bianchi, Chris Blake, Robert Blum, Bolton, A. S., S. Brieden, A. Brodzeller, D. Brooks, Zackary Brown, E. Buckley‐Geer, E. Burtin, L. Cabayol-Garcia, Cai, Z., Rebecca Canning, L. Cardiel-Sas, A. Carnero Rosell, Castander, F. J., Cervantes-Cota, J. L., Solène Chabanier, E. Chaussidon, J. Chaves-Montero, S. Chen, Cynthia Chuang, T. Claybaugh, Shaun Cole, Cooper, A. P., Andrei Cuceu, Davis, T. M., Kyle Dawson, Roger de Belsunce, R de la Cruz, Axel de la Macorra, Arnaud de Mattia, R. Demina, U Demirbozan, J. DeRose, Arjun Dey, Biprateep Dey, G. Dhungana, Jian Ding, Z. Ding, Peter Doel, Rajkumar Doshi, Kelly A. Douglass, A. C. Edge, Sarah Eftekharzadeh, Eisenstein, D. J., ARTHUR R. ELLIOTT, S. Escoffier, Parker Fagrelius, Xiaohui Fan, K. Fanning, Fawcett, V. A., Simone Ferraro, J. Ereza, B. Flaugher, Andreu Font-Ribera, D. Forero-Sánchez, Forero-Romero, J. E., Frenk, C. S., Gänsicke, B. T., García, L. Á., J. García-Bellido, C. García-Quintero, Garrison, L. H., Héctor Gil-Marín, J. Golden-Marx, Satya Gontcho A Gontcho, Gonzalez-Morales, A. X., Violeta González-Pérez, C. Gordon, Or Graur, Daniel Green, D. Gruen, J. Guy, Boryana Hadzhiyska, ChangHoon Hahn, M. Hanif, Hanif, M. M. S, Herrera-Alcantar, H. K., Klaus Honscheid, Jiamin Hou, Cullan Howlett, Dragan Huterer, Vid Iršič, Mustapha Ishak, Atanu Jana, Lin‐Hua Jiang, J. Jimenez, Jing, Y. P., Shahab Joudaki, Joyce, R., Eric Jullo, S. Juneau, Namitha Kizhuprakkat, Karaçaylı, N. G., Tariq Karim, R. Kehoe, S. Kent, Khederlarian, A., S. Kim, D. Kirkby, T. Kisner, Francisco-Shu Kitaura, Jean‐Paul Kneib, Koposov, S. E., András Kovács, Kremin, A., Alex Krolewski, Benjamin L’Huillier, Lahav, O., Andrew Lambert, C. Lamman, J.U Lange, Martin Landriau, Dustin Lang, Lange, J. U., J. Lasker, Guillou, L. Le, Alexie Leauthaud, Levi, M. E., Li, T. S., Eric V. Linder, Alan M. Lyons, C. Magneville, Marc Manera, Manser, C. J., Daniel Margala, Paul Martini, P. McDonald, Medina, G. E., L. Medina-Varela, Aaron Meisner, J. Mena-Fernández, J. Meneses-Rizo, Mar Mezcua, R. Miquel, Paulo Montero-Camacho, J. Moon, Shannon Moore, John Moustakas, E. Müeller, J. Mundet, A. Muñoz-Gutiérrez, Myers, A. D., S. Nadathur, L. Napolitano, Richard Neveux, Newman, J. A., Jundan Nie, Gustavo Niz, P. Norberg, Noriega, H. E., E. Paillas, N. Palanque‐Delabrouille, A Palmese, P. Zhiwei, David Parkinson, S. Penmetsa, Percival, W. J., Pérez-Fernández, A., I Perez-Rafols, M. Pieri, Claire Poppett, A. Porredon, Francisco Prada, Ragadeepika Pucha, Anand Raichoor, C. Ramírez-Pérez, S. Ramírez-Solano, M. Rashkovetskyi, C. Ravoux, A. Rocher, Constance M. Rockosi, Ross, A. J., Graziano Rossi, Rossana Ruggeri, V. Ruhlmann-Kleider, Sabiu, C. G., Khaled Said, A. Saintonge, Lado Samushia, E. Sánchez, C. Saulder, Emmanuel Schaan, Schlafly, E. F., David J. Schlegel, D. Scholte, M. Schubnell, Hee‐Jong Seo, Arman Shafieloo, R. M. Sharples, Wayne Huey‐Herng Sheu, J. Silber, Francesco Sinigaglia, M. Siudek, Zachary Slepian, A. G. Smith, David Sprayberry, L. Stephey, John F. Suárez-Pérez, Zheng Sun, T. Tan, G. Tarlé, Rita Tojeiro, Ureña-López, L. A., R. Vaisakh, D. Valcin, F. Valdés, Monica Valluri, M Vargas-Magana, Andrei Variu, Licia Verde, Michael Walther, M. S. Wang, Wang, M. S., Weaver, B. A., N. Weaverdyck, Wechsler, R. H., M. J. White, Y. Xie, Yang, J., Christophe Yèche, J. Yu, Sihan Yuan, Hua Zhang, Z. Zhang, Cheng Zhao, Zheng Zheng, Rongpu Zhou, Zhimin Zhou, Hu Zou, Shaoming Zou, Ying Zu · 发表于：arXiv (Cornell University) · 年份：2023 · DOI：10.48550/arxiv.2306.06307 · 被引用次数：28 · 研究领域：Astronomy and Astrophysical Research、Adaptive optics and wavefront sensing、Scientific Research and Discoveries

The Dark Energy Spectroscopic Instrument (DESI) was designed to conduct a survey covering 14,000 deg$^2$ over five years to constrain the cosmic expansion history through precise measurements of Baryon Acoustic Oscillations (BAO). The scientific program for DESI was evaluated during a five 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 (MWS), bright galaxy (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 five-year 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 Survey Validation covering 140 deg$^2$ using the final target selection algorithms with exposures of a depth typical of the main survey. The Survey Validation indicates that DESI will be able to complete the full 14,000 deg$^2$ 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 ...