☆ 4.7 Article

Precise measurement of the radial baryon acoustic oscillation scales in galaxy redshift surveys

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY (2013)

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MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
Volume 434, Issue 3, Pages 2008-2019

Publisher

OXFORD UNIV PRESS
DOI: 10.1093/mnras/stt1146

Keywords

cosmological parameters; dark energy; large-scale structure of Universe

Categories

Astronomy & Astrophysics

Funding

  1. Spanish Ministry of Science and Innovation (MICINN) [AYA2009-13936-C06-03, AYA2009-13936-C06-06]
  2. Spanish Ministry of Science and Innovation (MICINN) through the Consolider Ingenio programme [CSD2007-00060]
  3. JAE-predoc contract
  4. Madrid Regional Government (CAM) [HEPHACOS S2009/ESP-1473-02]

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In this paper, we present a new method to extract cosmological parameters using the radial scale of the baryon acoustic oscillations as a standard ruler in deep galaxy surveys. The method consists of an empirical parametrization of the radial two-point correlation function, which provides a robust and precise extraction of the sound horizon scale at the baryon drag epoch. Moreover, it uses data from galaxy surveys in a manner that is fully cosmology independent and therefore unbiased. A study of the main systematic errors and the validation of the method in cosmological simulations are also presented, showing that the measurement is limited only by cosmic variance. We then study the full information contained in the baryon acoustic oscillations, obtaining that the combination of the radial and angular determinations of this scale is a very sensitive probe of cosmological parameters, able to set strong constraints on the dark energy properties, even without combining it with any other probe. We compare the results obtained using this method with those from more traditional approaches, showing that the sensitivity to the cosmological parameters is of the same order, while the measurements use only observable quantities and are fully cosmology independent.

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Tso, S. Tsuchida, L. Tsukada, T. Tsutsui, K. Turbang, M. Turconi, C. Turski, D. Tuyenbayev, H. Ubach, A. S. Ubhi, N. Uchikata, T. Uchiyama, R. P. Udall, T. Uehara, K. Ueno, C. S. Unnikrishnan, T. Ushiba, A. Utina, H. Vahlbruch, N. Vaidya, G. Vajente, A. Vajpeyi, G. Valdes, M. Valentini, S. Vallero, V. Valsan, N. van Bakel, M. van Beuzekom, M. van Dael, J. F. J. Van den Brand, C. Van den Broeck, D. C. Vander-Hyde, M. Van der Sluys, A. Van de Walle, J. Van Dongen, H. van Haevermaet, J. V. van Heijningen, J. Vanosky, M. H. P. M. van Putten, Z. van Ranst, N. van Remortel, M. Vardaro, A. F. Vargas, V. Varma, M. Vasuth, A. Vecchio, G. Vedovato, J. Veitch, P. J. Veitch, J. Venneberg, G. Venugopalan, P. Verdier, D. Verkindt, P. Verma, Y. Verma, S. M. Vermeulen, D. Veske, F. Vetrano, A. Vicere, S. Vidyant, A. D. Viets, A. Vijaykumar, V. Villa-Ortega, M. Vina, E. T. Vincent, J. -Y. Vinet, S. Viret, A. Virtuoso, S. Vitale, H. Vocca, D. Voigt, E. R. G. von Reis, J. S. A. von Wrangel, C. Vorvick, S. P. Vyatchanin, L. E. Wade, M. Wade, K. J. Wagner, R. C. Walet, M. Walker, G. S. Wallace, L. Wallace, H. Wang, J. Z. Wang, W. H. Wang, R. L. Ward, J. Warner, M. Was, T. Washimi, N. Y. Washington, K. Watada, D. Watarai, J. Watchi, K. E. Wayt, B. Weaver, C. R. Weaving, S. A. Webster, M. Weinert, A. J. Weinstein, R. Weiss, C. M. Weller, R. A. Weller, F. Wellmann, L. Wen, P. Wessels, K. Wette, J. T. Whelan, D. D. White, B. F. Whiting, C. Whittle, O. S. Wilk, D. Wilken, K. Willetts, D. Williams, M. J. Williams, A. R. Williamson, J. L. Willis, B. Willke, C. C. Wipf, G. Woan, J. Woehler, J. K. Wofford, D. Wong, H. T. Wong, I. C. F. Wong, M. Wright, C. Wu, D. S. Wu, H. Wu, D. M. Wysocki, L. Xiao, V. A. Xu, N. Yadav, T. Yamada, H. Yamamoto, K. Yamamoto, M. Yamamoto, T. Yamamoto, T. S. Yamamoto, K. Yamashita, R. Yamazaki, F. W. Yang, K. Z. Yang, Y. -C. Yang, M. J. Yap, D. W. Yeeles, A. B. Yelikar, T. Y. Yeung, J. Yokoyama, T. Yokozawa, J. Yoo, Hang Yu, Haocun Yu, H. Yuzurihara, A. Zadrozny, A. J. Zannelli, M. Zanolin, M. Zeeshan, S. Zeidler, T. Zelenova, J. -P. Zendri, M. Zevin, J. Zhang, L. Zhang, R. Zhang, T. Zhang, Y. Zhang, C. Zhao, Yue Zhao, Yuhang Zhao, Y. Zheng, H. Zhong, R. Zhou, X. J. Zhu, Z. -H. Zhu, A. B. Zimmerman, M. E. Zucker, J. Zweizig

Summary: The global network of gravitational-wave observatories has expanded to include five detectors, providing ample data and science products for analysis and research.

ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES (2023)

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Article Astronomy & Astrophysics

Stochastic gravitational wave background constraints from Gaia DR3 astrometry

Santiago Jaraba, Juan Garcia-Bellido, Sachiko Kuroyanagi, Sarah Ferraiuolo, Matteo Braglia

Summary: Astrometric surveys using Gaia DR3 data are used to set constraints on the stochastic gravitational wave background (SGWB) at low frequencies. Analysis of quasar-based data sets allows for the determination of upper bounds on the energy density of the SGWB. The results also indicate the potential for future Gaia data releases to impose tighter constraints.

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Article Astronomy & Astrophysics

Beyond the 3rd moment: a practical study of using lensing convergence CDFs for cosmology with DES Y3

D. Anbajagane, C. Chang, A. Banerjee, T. Abel, M. Gatti, V Ajani, A. Alarcon, A. Amon, E. J. Baxter, K. Bechtol, M. R. Becker, G. M. Bernstein, A. Campos, A. Carnero Rosell, M. Carrasco Kind, R. Chen, A. Choi, C. Davis, J. Derose, H. T. Diehl, S. Dodelson, C. Doux, A. Drlica-Wagner, K. Eckert, J. Elvin-Poole, S. Everett, A. Ferte, D. Gruen, R. A. Gruendl, I Harrison, W. G. Hartley, E. M. Huff, B. Jain, M. Jarvis, N. Jeffrey, T. Kacprzak, N. Kokron, N. Kuropatkin, P-F Leget, N. Maccrann, J. Mccullough, J. Myles, A. Navarro-Alsina, S. Pandey, J. Prat, M. Raveri, R. P. Rollins, A. Roodman, E. S. Rykoff, C. Sanchez, L. F. Secco, I Sevilla-Noarbe, E. Sheldon, T. Shin, M. A. Troxel, I Tutusaus, L. Whiteway, B. Yanny, B. Yin, Y. Zhang, T. M. C. Abbott, S. Allam, M. Aguena, O. Alves, F. Andrade-Oliveira, J. Annis, D. Bacon, J. Blazek, D. Brooks, R. Cawthon, L. N. da Costa, M. E. S. Pereira, T. M. Davis, S. Desai, P. Doel, I Ferrero, J. Frieman, G. Giannini, G. Gutierrez, S. R. Hinton, D. L. Hollowood, K. Honscheid, D. J. James, K. Kuehn, O. Lahav, J. L. Marshall, J. Mena-Fernandez, F. Menanteau, R. Miquel, A. Palmese, A. Pieres, A. A. Plazas Malagon, K. Reil, E. Sanchez, M. Smith, M. E. C. Swanson, G. Tarle, P. Wiseman

Summary: Widefield surveys are important in probing clustered scalar fields, such as galaxy counts and lensing potential, which can provide insights into cosmological and astrophysical processes. The cumulative distribution function (CDF) is explored as a statistical summary of the galaxy lensing convergence field, and its constraining power is found to be modestly better than the second and third moments. Practical aspects of applying CDFs to data are investigated using the Dark Energy Survey (DES Y3) data, showing the impact of different systematics on the CDFs.

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Article Astronomy & Astrophysics

The Dark Energy Spectroscopic Instrument: one-dimensional power spectrum from first Ly α forest samples with Fast Fourier Transform

Corentin Ravoux, Marie Lynn Abdul Karim, Eric Armengaud, Michael Walther, Naim Goksel Karacayli, Paul Martini, Julien Guy, Jessica Nicole Aguilar, Steven Ahlen, Stephen Bailey, Julian Bautista, Sergio Felipe Beltran, David Brooks, Laura Cabayol-Garcia, Solene Chabanier, Edmond Chaussidon, Jonas Chaves-Montero, Kyle Dawson, Rodrigo de la Cruz, Axel de la Macorra, Peter Doel, Kevin Fanning, Andreu Font-Ribera, Jaime Forero-Romero, Satya Gontcho A Gontcho, Alma X. Gonzalez-Morales, Calum Gordon, Hiram K. Herrera-Alcantar, Klaus Honscheid, Vid Irsic, Mustapha Ishak, Robert Kehoe, Theodore Kisner, Anthony Kremin, Martin Landriau, Laurent Le Guillou, Michael Levi, Zarija Lukic, Christophe Magneville, Aaron Meisner, Ramon Miquel, John Moustakas, Eva-Maria Mueller, Andrea Munoz-Gutierrez, Lucas Napolitano, Jundan Nie, Gustavo Niz, Nathalie Palanque-Delabrouille, Will Percival, Ignasi Perez-Rafols, Matthew Pieri, Claire Poppett, Francisco Prada, Cesar Ramirez Perez, Graziano Rossi, Eusebio Sanchez, David Schlegel, Michael Schubnell, Hee-Jong Seo, Francesco Sinigaglia, Ting Tan, Gregory Tarle, Ben Wang, Benjamin Weaver, Christophe Yeche, Zhimin Zhou

Summary: This paper presents the measurement of the one-dimensional Ly alpha forest power spectrum using data from the Dark Energy Spectroscopic Instrument (DESI). The measurement is based on the first 2 months of the main survey and employs a Fast Fourier Transform (FFT) estimator. Validation of the measurement is done using synthetic data and the results show that the Ly alpha forest sample obtained from the DESI survey will be five times larger than that from the previous Sloan Digital Sky Survey (SDSS).

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