☆ 4.7 Article

A GROUND-BASED 21 cm BARYON ACOUSTIC OSCILLATION SURVEY

ASTROPHYSICAL JOURNAL (2010)

期刊

ASTROPHYSICAL JOURNAL

卷 721, 期 1, 页码 164-173

出版社

IOP PUBLISHING LTD

DOI: 10.1088/0004-637X/721/1/164

关键词

dark energy; large-scale structure of universe; methods: numerical; radio lines: galaxies

类别

Astronomy & Astrophysics

资金

US Department of Energy [DE-AC02-07CH11359]
Direct For Mathematical & Physical Scien
Division Of Astronomical Sciences [0908072] Funding Source: National Science Foundation

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Reagent

摘要

Baryon acoustic oscillations (BAO) provide a robust standard ruler with which to measure the acceleration of the universe. The BAO feature has so far been detected in optical galaxy surveys. Intensity mapping of neutral hydrogen emission with a ground-based radio telescope provides another promising window for measuring BAO at redshifts of order unity for relatively low cost. While the cylindrical radio telescope (CRT) proposed for these measurements will have excellent redshift resolution, it will suffer from poor angular resolution (arcminutes at best). We investigate the effect of angular resolution on the standard ruler test with BAO, using the Dark Energy Task Force Figure of Merit (FoM) as a benchmark. We then extend the analysis to include variations in the parameters characterizing the telescope and the underlying physics. Finally, we optimize the survey parameters (holding total cost fixed) and present an example of a CRT BAO survey that is competitive with Stage III dark energy experiments. The tools developed here form the backbone of a publicly available code that can be used to obtain estimates of cost and FoM for any set of survey parameters.

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J. Myles, D. Gruen, A. Amon, A. Alarcon, J. DeRose, S. Everett, S. Dodelson, G. M. Bernstein, A. Campos, I Harrison, N. MacCrann, J. McCullough, M. Raveri, C. Sanchez, M. A. Troxel, B. Yin, T. M. C. Abbott, S. Allam, O. Alves, F. Andrade-Oliveira, E. Bertin, D. Brooks, D. L. Burke, A. Carnero Rosell, M. Carrasco Kind, J. Carretero, R. Cawthon, M. Costanzi, L. N. da Costa, M. E. S. Pereira, S. Desai, P. Doel, I Ferrero, B. Flaugher, J. Frieman, J. Garcia-Bellido, M. Gatti, D. W. Gerdes, R. A. Gruendl, J. Gschwend, G. Gutierrez, W. G. Hartley, S. R. Hinton, D. L. Hollowood, K. Honscheid, D. J. James, K. Kuehn, O. Lahav, P. Melchior, J. Mena-Fernandez, F. Menanteau, R. Miquel, J. J. Mohr, A. Palmese, F. Paz-Chinchon, A. Pieres, A. A. Plazas Malagon, J. Prat, M. Rodriguez-Monroy, E. Sanchez, V Scarpine, I Sevilla-Noarbe, M. Smith, E. Suchyta, M. E. C. Swanson, G. Tarle, D. L. Tucker, M. Vincenzi, N. Weaverdyck

Summary: We propose a method called PITPZ for mapping variations between probability distribution functions, and apply it to measure galaxy redshift distributions from imaging survey data. The method uses the difference in curves between distribution functions in an ensemble to transfer the variation to another distribution function. This method is broadly applicable to uncertainty propagation problems. In a test case, PITPZ successfully propagates photometric calibration uncertainty to redshift distributions, providing a more accurate estimate compared to traditional methods.

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY (2023)

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Article Astronomy & Astrophysics

New constraints on cosmological modified gravity theories from anisotropic three-point correlation functions of BOSS DR12 galaxies

Naonori S. Sugiyama, Daisuke Yamauchi, Tsutomu Kobayashi, Tomohiro Fujita, Shun Arai, Shin'ichi Hirano, Shun Saito, Florian Beutler, Hee-Jong Seo

Summary: We conducted a joint analysis of galaxy two- and three-point correlation functions to test modified gravity theories and constrain non-linear effects on cosmological scales. Applying this analysis to BOSS data, we obtained lower bounds on the parameters characterizing the time evolution of the second-order velocity field, which are consistent with GR predictions. The results showed significant improvement compared to the analysis using only the isotropic three-point correlation function.

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY (2023)

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Article Astronomy & Astrophysics

First test of the consistency relation for the large-scale structure using the anisotropic three-point correlation function of BOSS DR12 galaxies

Naonori S. Sugiyama, Daisuke Yamauchi, Tsutomu Kobayashi, Tomohiro Fujita, Shun Arai, Shin'ichi Hirano, Shun Saito, Florian Beutler, Hee-Jong Seo

Summary: For the first time, we have conducted an observational test of the consistency relation for the large-scale structure (LSS) of the Universe by jointly analyzing the anisotropic two-and three-point correlation functions (2PCF and 3PCF) of galaxies. Using the Baryon Oscillation Spectroscopic Survey (BOSS) Data Release 12, we found no violation of the LSS consistency relation in our analysis within the statistical errors. Our analysis opens up a new observational window to test fundamental physics using anisotropic higher-order correlation functions of galaxy clustering.

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY (2023)

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Article Astronomy & Astrophysics

The Dark Energy Survey Year 3 and eBOSS: constraining galaxy intrinsic alignments across luminosity and colour space

S. Samuroff, R. Mandelbaum, J. Blazek, A. Campos, N. MacCrann, G. Zacharegkas, A. Amon, J. Prat, S. Singh, J. Elvin-Poole, A. J. Ross, A. Alarcon, E. Baxter, K. Bechtol, M. R. Becker, G. M. Bernstein, A. Carnero Rosell, M. Carrasco Kind, R. Cawthon, C. Chang, R. Chen, A. Choi, M. Crocce, C. Davis, J. DeRose, S. Dodelson, C. Doux, A. Drlica-Wagner, K. Eckert, S. Everett, A. Ferte, M. Gatti, G. Giannini, D. Gruen, R. A. Gruendl, I Harrison, K. Herner, E. M. Huff, M. Jarvis, N. Kuropatkin, P-F Leget, P. Lemos, J. McCullough, J. Myles, A. Navarro-Alsina, S. Pandey, A. Porredon, M. Raveri, M. Rodriguez-Monroy, R. P. Rollins, A. Roodman, G. Rossi, E. S. Rykoff, C. Sanchez, L. F. Secco, I Sevilla-Noarbe, E. Sheldon, T. Shin, M. A. Troxel, I Tutusaus, N. Weaverdyck, B. Yanny, B. Yin, Y. Zhang, J. Zuntz, M. Aguena, O. Alves, J. Annis, D. Bacon, E. Bertin, S. Bocquet, D. Brooks, D. L. Burke, J. Carretero, M. Costanzi, L. N. da Costa, M. E. S. Pereira, J. De Vicente, S. Desai, H. T. Diehl, J. P. Dietrich, P. Doel, I Ferrero, B. Flaugher, J. Frieman, J. Garcia-Bellido, S. R. Hinton, D. L. Hollowood, K. Honscheid, D. J. James, K. Kuehn, O. Lahav, J. L. Marshall, P. Melchior, J. Mena-Fernandez, F. Menanteau, R. Miquel, J. Newman, A. Palmese, A. Pieres, A. A. Plazas Malagon, E. Sanchez, V Scarpine, M. Smith, E. Suchyta, M. E. C. Swanson, G. Tarle, C. To

Summary: We directly constrain galaxy intrinsic alignments (IAs) using data from Dark Energy Survey Year 3 (DES Y3), Extended Baryon Oscillation Spectroscopic Survey (eBOSS), and Baryon Oscillation Spectroscopic Survey (BOSS). Our measurements incorporate different types of galaxies at various redshifts and fit a model that includes lensing, magnification, and photometric redshift error. We detect IAs in each sample and observe a detectable dependence on color between broadly defined red samples. It is likely that future measurements will require a more sophisticated approach to account for the effects of color and luminosity on the IA signal.

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY (2023)

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Article Astronomy & Astrophysics

Dark Energy Survey Year 3 results: Cosmology from combined galaxy clustering and lensing validation on cosmological simulations

J. DeRose, R. H. Wechsler, M. R. Becker, E. S. Rykoff, S. Pandey, N. MacCrann, A. Amon, J. Myles, E. Krause, D. Gruen, B. Jain, M. A. Troxel, J. Prat, A. Alarcon, C. Sanchez, J. Blazek, M. Crocce, G. Giannini, M. Gatti, G. M. Bernstein, J. Zuntz, S. Dodelson, X. Fang, O. Friedrich, L. F. Secco, J. Elvin-Poole, A. Porredon, S. Everett, A. Choi, I. Harrison, J. Cordero, M. Rodriguez-Monroy, J. McCullough, R. Cawthon, A. Chen, O. Alves, F. Andrade-Oliveira, K. Bechtol, H. Camacho, A. Campos, A. Carnero Rosell, M. Carrasco Kind, H. T. Diehl, A. Drlica-Wagner, K. Eckert, T. F. Eifler, R. A. Gruendl, W. G. Hartley, H. Huang, E. M. Huff, N. Kuropatkin, M. Raveri, R. Rosenfeld, A. J. Ross, J. Sanchez, I. Sevilla-Noarbe, E. Sheldon, B. Yanny, B. Yin, Y. Zhang, P. Fosalba, M. Aguena, S. Allam, J. Annis, S. Avila, D. Bacon, S. Bhargava, D. Brooks, E. Buckley-Geer, D. L. Burke, J. Carretero, F. J. Castander, C. Chang, M. Costanzi, L. N. da Costa, M. E. S. Pereira, J. De Vicente, S. Desai, J. P. Dietrich, P. Doel, A. E. Evrard, I. Ferrero, A. Ferte, B. Flaugher, J. Frieman, J. Garcia-Bellido, E. Gaztanaga, T. Giannantonio, J. Gschwend, G. Gutierrez, S. R. Hinton, D. L. Hollowood, K. Honscheid, D. Huterer, D. J. James, K. Kuehn, O. Lahav, M. Lima, M. A. G. Maia, J. L. Marshall, P. Melchior, F. Menanteau, R. Miquel, J. J. Mohr, R. Morgan, A. Palmese, F. Paz-Chinchon, D. Petravick, A. Pieres, A. A. Plazas Malagon, E. Sanchez, V. Scarpine, S. Serrano, M. Smith, M. Soares-Santos, E. Suchyta, G. Tarle, D. Thomas, C. To, T. N. Varga

Summary: We validate the 3 x 2-point analysis choices of the Dark Energy Survey Year 3 (DES Y3) by testing them on BUZZARD2.0 simulations. The simulations accurately reproduce many important aspects of the DES Y3 data and demonstrate the accuracy of our model and redshift calibration methodology in recovering true cosmology.

PHYSICAL REVIEW D (2022)

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Article Astronomy & Astrophysics

Dark Energy Survey Year 3 results: Cosmological constraints from galaxy clustering and galaxy-galaxy lensing using the MAGLIM lens sample

A. Porredon, M. Crocce, J. Elvin-Poole, R. Cawthon, G. Giannini, J. De Vicente, A. Carnero Rosell, I Ferrero, E. Krause, X. Fang, J. Prat, M. Rodriguez-Monroy, S. Pandey, A. Pocino, F. J. Castander, A. Choi, A. Amon, I Tutusaus, S. Dodelson, I Sevilla-Noarbe, P. Fosalba, E. Gaztanaga, A. Alarcon, O. Alves, F. Andrade-Oliveira, E. Baxter, K. Bechtol, M. R. Becker, G. M. Bernstein, J. Blazek, H. Camacho, A. Campos, M. Carrasco Kind, P. Chintalapati, J. Cordero, J. DeRose, E. Di Valentino, C. Doux, T. F. Eifler, S. Everett, A. Ferte, O. Friedrich, M. Gatti, D. Gruen, I Harrison, W. G. Hartley, K. Herner, E. M. Huff, D. Huterer, B. Jain, M. Jarvis, S. Lee, P. Lemos, N. MacCrann, J. Mena-Fernandez, J. Muir, J. Myles, Y. Park, M. Raveri, R. Rosenfeld, A. J. Ross, E. S. Rykoff, S. Samuroff, C. Sanchez, E. Sanchez, J. Sanchez, D. Sanchez Cid, D. Scolnic, L. F. Secco, E. Sheldon, A. Troja, M. A. Troxel, N. Weaverdyck, B. Yanny, J. Zuntz, T. M. C. Abbott, M. Aguena, S. Allam, J. Annis, S. Avila, D. Bacon, E. Bertin, S. Bhargava, D. Brooks, E. Buckley-Geer, D. L. Burke, J. Carretero, M. Costanzi, L. N. da Costa, M. E. S. Pereira, T. M. Davis, S. Desai, H. T. Diehl, J. P. Dietrich, P. Doel, A. Drlica-Wagner, K. Eckert, A. E. Evrard, B. Flaugher, J. Frieman, J. Garcia-Bellido, D. W. Gerdes, T. Giannantonio, R. A. Gruendl, J. Gschwend, G. Gutierrez, S. R. Hinton, D. L. Hollowood, K. Honscheid, B. Hoyle, D. J. James, K. Kuehn, N. Kuropatkin, O. Lahav, C. Lidman, M. Lima, H. Lin, M. A. G. Maia, J. L. Marshall, P. Martini, P. Melchior, F. Menanteau, R. Miquel, J. J. Mohr, R. Morgan, R. L. C. Ogando, A. Palmese, F. Paz-Chinchon, D. Petravick, A. Pieres, A. A. Plazas Malagon, A. K. Romer, B. Santiago, V Scarpine, M. Schubnell, S. Serrano, M. Smith, M. Soares-Santos, E. Suchyta, G. Tarle, D. Thomas, C. To, T. N. Varga, J. Weller

Summary: The cosmological constraints obtained from galaxy clustering and galaxy-galaxy lensing are combined with measurements of the cosmic microwave background to derive limitations on cosmological parameters. Including smaller scales and marginalizing over nonlinear galaxy bias improves the constraining power.

PHYSICAL REVIEW D (2022)

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