Article
Astronomy & Astrophysics
Shang Li, Ji-Ping Dai, Xiu-Hui Tan, Yang-Jie Yan, Jun-Qing Xia
Summary: The bounce scenario in cosmology is a research topic that addresses the singularity problem and trans-Planckian issue left by the standard inflationary theory. In this work, the authors extend the analysis to large-scale structure measurements and find that the model parameters can be constrained effectively. The constraints become even stronger when combined with the measurements from the Planck satellite.
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
(2023)
Article
Astronomy & Astrophysics
Cristhian Garcia, Camilo Santa, Antonio Enea Romano
Summary: This article introduces the use of convolutional neural networks to solve the inversion problem of the large-scale structure of the Universe. By observing the luminosity distance of Supernovae Ia, the researchers can reconstruct the large-scale structure. The results show that the velocity field inversion is more accurate than the density field.
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
(2023)
Article
Astronomy & Astrophysics
Eleni Tsaprazi, Jens Jasche, Ariel Goobar, Hiranya Peiris, Igor Andreoni, Michael W. Coughlin, Christoffer U. Fremling, Matthew J. Graham, Mansi Kasliwal, Shri R. Kulkarni, Ashish A. Mahabal, Reed Riddle, Jesper Sollerman, Anastasios Tzanidakis
Summary: The new generation of wide-field time-domain surveys has enabled the study of clustering of supernova host galaxies in the large-scale structure for the first time. The research found that supernovae exhibit high significance clustering and their distribution in the LSS is consistent with that of SDSS galaxies.
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
(2022)
Article
Astronomy & Astrophysics
Ginevra Favole, Benjamin R. Granett, Javier Silva Lafaurie, Domenico Sapone
Summary: The study investigates the jackknife method for internal covariance estimation in large-scale structure surveys, exploring the impact of jackknife size and number of resamplings on the precision of the covariance estimate and errors in cosmological parameters. Results show that the baryon acoustic scale error estimate is independent of the jackknife scale, while the shift parameter a exhibits variations in error estimates from different datasets.
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
(2021)
Article
Astronomy & Astrophysics
Xiaoyun Shao, Zhoujian Cao, Xilong Fan, Shichao Wu
Summary: Improvements in the sensitivity of the gravitational wave network have enabled third-generation GW detectors to independently detect the large-scale structure of the universe through the clustering of binary black holes. The large redshifts of GW events make black hole catalogs a better choice than galaxy catalogs to probe the large-scale structure and cosmic evolution. Using the sky position of BBHs observed by third-generation GW detectors, we calculated the angular correlation function and bias factor of the BBH population, providing an independent method to understand the formation mechanisms and origin of BBH mergers.
RESEARCH IN ASTRONOMY AND ASTROPHYSICS
(2022)
Article
Astronomy & Astrophysics
Bryan R. Scott, Kirit S. Karkare, Simeon Bird
Summary: We investigate the potential of using line intensity mapping (LIM) of CO(1-0), CO(2-1), and CO(3-2) transitions to detect deviations from General Relativity in the framework of Horndeski's theories. Our analysis suggests that a mm-wave LIM experiment would need a total spectrometre-hours of about 10(8)-10(9) to achieve constraints on certain parameters. Such constraints would be competitive or even tighter than existing constraints from the CMB and LSS. Our modelling code is publicly available.
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
(2023)
Article
Astronomy & Astrophysics
Sownak Bose, Boryana Hadzhiyska, Monica Barrera, Ana Maria Delgado, Fulvio Ferlito, Carlos Frenk, Cesar Hernandez-Aguayo, Lars Hernquist, Rahul Kannan, Ruediger Pakmor, Volker Springel, Simon D. M. White
Summary: Modern redshift surveys are mapping the distribution of galaxies on enormous distance scales. However, current hydrodynamical simulations cannot reach the volumes needed for upcoming surveys. A new, large volume hydrodynamical simulation called MillenniumTNG (MTNG) is able to accurately reproduce the observed clustering of galaxies, but there are discrepancies when separated by color. This is due to the quenching of satellite galaxies in the model.
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
(2023)
Article
Astronomy & Astrophysics
Jiamin Hou, Zachary Slepian, Robert N. Cahn
Summary: The tetrahedron-shaped correlation function (4PCF) provides evidence for violation of parity symmetry in the clustering of galaxies. This effect, which cannot be explained by gravitational evolution alone, suggests a cosmological origin during the epoch of inflation. The detection of this odd-parity 4PCF opens up new possibilities for exploring new forces in the large-scale structure of the universe.
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
(2023)
Article
Astronomy & Astrophysics
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)
Article
Astronomy & Astrophysics
Fulvio Melia, Qingbo Ma, Jun-Jie Wei, Bo Yu
Summary: This paper investigates potential anomalies in the fluctuation spectrum of the cosmic microwave background temperature, suggesting that the cutoff in the primordial power spectrum may explain both the low level of correlation at large angles and missing power in the low multipole moments of the angular power spectrum. The study confirms that introducing this cutoff does not affect the overall consistency between Planck-ΛCDM prediction and measurements at l30.
ASTRONOMY & ASTROPHYSICS
(2021)
Article
Astronomy & Astrophysics
Rafael Garcia, Eduardo Rozo, Matthew R. Becker, Surhud More
Summary: The proposed model integrates halo exclusion and redefines halo boundary in a flexible way, leading to successful description of the halo-mass correlation function within a certain range. The features of the model, including scale-dependent biasing and a transition radius, contribute to a more accurate representation of haloes' behavior in tracing mass.
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
(2021)
Article
Astronomy & Astrophysics
Ivelin Georgiev, Garrelt Mellema, Sambit K. Giri, Rajesh Mondal
Summary: This study investigates the evolution of the 21-cm power spectrum through numerical and semi-numerical simulations, revealing that the large-scale signal is related to the cosmological density field, while the small-scale power spectrum is influenced by the astrophysics of reionization.
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
(2022)
Article
Astronomy & Astrophysics
M. J. M. Marcha, I. W. A. Browne
Summary: Evidence for large-scale clustering is found among Fermi-selected BL Lac objects, but not among Fermi-selected FSRQs. High-latitude Fermi sources as a whole show a significant clustering signal on scales up to 30 degrees, while this signal may be washed out in FSRQs.
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
(2021)
Article
Astronomy & Astrophysics
Nicolas Chartier, Benjamin Wandelt, Yashar Akrami, Francisco Villaescusa-Navarro
Summary: This study introduces a general method called CARPool, which utilizes the correlation between simulations and surrogates to compute fast, reduced-variance statistics of large-scale structure observables. Numerical experiments demonstrate significant improvements in both the non-linear and linear regimes using CARPool.
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
(2021)
Article
Astronomy & Astrophysics
Felipe Avila, Armando Bernui, Rafael C. Nunes, Edilson de Carvalho, Camila P. Novaes
Summary: The study presents a novel approach to obtaining the growth rate of cosmic structures from the evolution of the cosmic homogeneity scale. The results show consistency between the growth rate obtained through the proposed approach, the expected growth rate in the standard model, and the best-fitting growth rate from existing data.
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
(2022)
Article
Astronomy & Astrophysics
A. Amon, N. C. Robertson, H. Miyatake, C. Heymans, M. White, J. DeRose, S. Yuan, R. H. Wechsler, T. N. Varga, S. Bocquet, A. Dvornik, S. More, A. J. Ross, H. Hoekstra, A. Alarcon, M. Asgari, J. Blazek, A. Campos, R. Chen, A. Choi, M. Crocce, H. T. Diehl, C. Doux, K. Eckert, J. Elvin-Poole, S. Everett, A. Ferte, M. Gatti, G. Giannini, D. Gruen, R. A. Gruendl, W. G. Hartley, K. Herner, H. Hildebrandt, S. Huang, E. M. Huff, B. Joachimi, S. Lee, N. MacCrann, J. Myles, A. Navarro-Alsina, T. Nishimichi, J. Prat, L. F. Secco, I Sevilla-Noarbe, E. Sheldon, T. Shin, T. Troster, M. A. Troxel, I Tutusaus, A. H. Wright, B. Yin, M. Aguena, S. Allam, J. Annis, D. Bacon, M. Bilicki, D. Brooks, D. L. Burke, A. Carnero Rosell, J. Carretero, F. J. Castander, R. Cawthon, M. Costanzi, L. N. da Costa, M. E. S. Pereira, J. de Jong, J. De Vicente, S. Desai, J. P. Dietrich, P. Doel, I Ferrero, J. Frieman, J. Garcia-Bellido, D. W. Gerdes, J. Gschwend, G. Gutierrez, S. R. Hinton, D. L. Hollowood, K. Honscheid, D. Huterer, A. Kannawadi, K. Kuehn, N. Kuropatkin, O. Lahav, M. Lima, M. A. G. Maia, J. L. Marshall, F. Menanteau, R. Miquel, J. J. Mohr, R. Morgan, J. Muir, F. Paz-Chinchon, A. Pieres, A. A. Plazas Malagon, A. Porredon, M. Rodriguez-Monroy, A. Roodman, E. Sanchez, S. Serrano, H. Shan, E. Suchyta, M. E. C. Swanson, G. Tarle, D. Thomas, C. To, Y. Zhang
Summary: We evaluate the consistency between lensing and clustering by combining measurements from Baryon Oscillation Spectroscopic Survey, DES Year 3, HSC Year 1, and KiDS-1000. Good agreement is found between these lensing data sets. Two fixed cosmologies, Planck and Lensing cosmology, are used to fit the data, and both provide an acceptable fit at large scales. However, uncertainties in baryon feedback and assembly bias hinder the full utilization of small-scale measurements.
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
(2023)
Article
Astronomy & Astrophysics
J. Guy, S. Bailey, A. Kremin, Shadab Alam, D. M. Alexander, C. Allende Prieto, S. BenZvi, A. S. Bolton, D. Brooks, E. Chaussidon, A. P. Cooper, K. Dawson, A. de la Macorra, A. Dey, Biprateep Dey, G. Dhungana, D. J. Eisenstein, A. Font-Ribera, J. E. Forero-Romero, E. Gaztanaga, S. Gontcho A. Gontcho, D. Green, K. Honscheid, M. Ishak, R. Kehoe, D. Kirkby, T. Kisner, Sergey E. Koposov, Ting-Wen Lan, M. Landriau, L. Le Guillou, Michael E. Levi, C. Magneville, Christopher J. Manser, P. Martini, Aaron M. Meisner, R. Miquel, J. Moustakas, Adam D. Myers, Jeffrey A. Newman, Jundan Nie, N. Palanque-Delabrouille, W. J. Percival, C. Poppett, F. Prada, A. Raichoor, C. Ravoux, A. J. Ross, E. F. Schlafly, D. Schlegel, M. Schubnell, Ray M. Sharples, Gregory Tarle, B. A. Weaver, Christophe Yeche, Rongpu Zhou, Zhimin Zhou, H. Zou
Summary: The Dark Energy Spectroscopic Instrument (DESI) is a purpose-built instrument on the 4 m Mayall Telescope at Kitt Peak National Observatory for conducting a redshift survey. With a spectroscopic data processing pipeline, DESI generates wavelength- and flux-calibrated spectra, spectroscopic classifications, and redshift measurements. The pipeline has exceeded the project's requirements for redshift performance, achieving a purity greater than 99% for all target classes.
ASTRONOMICAL JOURNAL
(2023)
Article
Astronomy & Astrophysics
ChangHoon Hahn, Michael J. Wilson, Omar Ruiz-Macias, Shaun Cole, David H. Weinberg, John Moustakas, Anthony Kremin, Jeremy L. Tinker, Alex Smith, Risa H. Wechsler, Steven Ahlen, Shadab Alam, Stephen Bailey, David Brooks, Andrew P. Cooper, Tamara M. Davis, Kyle Dawson, Arjun Dey, Biprateep Dey, Sarah Eftekharzadeh, Daniel J. Eisenstein, Kevin Fanning, Jaime E. Forero-Romero, Carlos S. Frenk, Enrique Gaztanaga, Satya Gontcho Gontcho, Julien Guy, Klaus Honscheid, Mustapha Ishak, Stephanie Juneau, Robert Kehoe, Theodore Kisner, Ting-Wen Lan, Martin Landriau, Laurent Le Guillou, Michael E. Levi, Christophe Magneville, Paul Martini, Aaron Meisner, Adam D. Myers, Jundan Nie, Peder Norberg, Nathalie Palanque-Delabrouille, Will J. Percival, Claire Poppett, Francisco Prada, Anand Raichoor, Ashley J. Ross, Sasha Safonova, Christoph Saulder, Eddie Schlafly, David Schlegel, David Sierra-Porta, Gregory Tarle, Benjamin A. Weaver, Christophe Yeche, Pauline Zarrouk, Rongpu Zhou, Zhimin Zhou, Hu Zou
Summary: In the next 5 years, DESI will conduct the first Stage IV dark energy galaxy survey using 10 spectrographs with 5000 fibers on the 4 m Mayall Telescope. The DESI Bright Galaxy Survey will produce a detailed map of the universe during the dark-energy-dominated epoch, covering a large area with high redshifts. The final target selection and survey design for the BGS have been presented and validated.
ASTRONOMICAL JOURNAL
(2023)
Article
Astronomy & Astrophysics
David M. Alexander, Tamara M. Davis, E. Chaussidon, V. A. Fawcett, Alma X. Gonzalez-Morales, Ting-Wen Lan, Christophe Yeche, S. Ahlen, J. N. Aguilar, E. Armengaud, S. Bailey, D. Brooks, Z. Cai, R. Canning, A. Carr, S. Chabanier, Marie-Claude Cousinou, K. Dawson, A. de la Macorra, A. Dey, Biprateep Dey, G. Dhungana, A. C. Edge, S. Eftekharzadeh, K. Fanning, James Farr, A. Font-Ribera, J. Garcia-Bellido, Lehman Garrison, E. Gaztanaga, Satya Gontcho Gontcho, C. Gordon, Stefany Guadalupe Medellin Gonzalez, J. Guy, Hiram K. Herrera-Alcantar, L. Jiang, S. Juneau, N. G. Karacayli, R. Kehoe, T. Kisner, A. Kovacs, M. Landriau, Michael E. Levi, C. Magneville, P. Martini, Aaron M. Meisner, M. Mezcua, R. Miquel, P. Montero Camacho, J. Moustakas, Andrea Munoz-Gutierrez, Adam D. Myers, S. Nadathur, L. Napolitano, J. D. Nie, N. Palanque-Delabrouille, Z. Pan, W. J. Percival, I. Perez-Rafols, C. Poppett, F. Prada, Cesar Ramirez-Perez, C. Ravoux, D. J. Rosario, M. Schubnell, Gregory Tarle, M. Walther, B. Weiner, S. Youles, Zhimin Zhou, H. Zou, Siwei Zou
Summary: A detailed visual inspection of the optical spectroscopic data is crucial for the Dark Energy Spectroscopic Instrument (DESI) survey validation. This paper presents the results of the quasar survey using deep coadded SV spectra, showing that the majority of the main-survey targets are confirmed as quasars. A modified pipeline is introduced to increase the quasar yield by recovering misidentified quasars. Both the standard and modified pipelines achieve high redshift purity and demonstrate good redshift precision and accuracy.
ASTRONOMICAL JOURNAL
(2023)
Article
Astronomy & Astrophysics
A. Raichoor, J. Moustakas, Jeffrey A. Newman, T. Karim, S. Ahlen, Shadab Alam, S. Bailey, D. Brooks, K. Dawson, A. de la Macorra, A. de Mattia, A. Dey, Biprateep Dey, G. Dhungana, S. Eftekharzadeh, D. J. Eisenstein, K. Fanning, A. Font-Ribera, J. Garcia-Bellido, E. Gaztanaga, S. Gontcho A. Gontcho, J. Guy, K. Honscheid, M. Ishak, R. Kehoe, T. Kisner, Anthony Kremin, Ting-Wen Lan, M. Landriau, L. Le Guillou, Michael E. Levi, C. Magneville, M. Manera, P. Martini, Aaron M. Meisner, Adam D. Myers, Jundan Nie, N. Palanque-Delabrouille, W. J. Percival, C. Poppett, F. Prada, A. J. Ross, V. Ruhlmann-Kleider, C. G. Sabiu, E. F. Schlafly, D. Schlegel, Gregory Tarle, B. A. Weaver, Christophe Yeche, Rongpu Zhou, Zhimin Zhou, H. Zou
Summary: The Dark Energy Spectroscopic Instrument (DESI) will collect approximately 40 million extragalactic redshifts to precisely constrain cosmic expansion and the growth of structure. It will cover about 80% of cosmic history and one-third of the sky. The Emission Line galaxy (ELG) sample, which comprises one-third of all DESI tracers, will be used to probe the universe within the 0.6 < z < 1.6 range, with the tightest constraints expected in the 1.1 < z < 1.6 range. The target selection for the DESI Survey Validation (SV) and Main Survey ELG samples relies on imaging from the Legacy Surveys.
ASTRONOMICAL JOURNAL
(2023)
Article
Astronomy & Astrophysics
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)
Article
Astronomy & Astrophysics
Alex Woodfinden, Will J. Percival, Seshadri Nadathur, Hans A. Winther, T. S. Fraser, Elena Massara, Enrique Paillas, Sladana Radinovic
Summary: We analyze measurements from the Sloan Digital Sky Survey (SDSS) Main Galaxy Sample (MGS), Baryon Oscillation Spectroscopic Survey (BOSS), and extended BOSS (eBOSS) luminous red galaxy catalogues to draw cosmological implications. Through measurements of void-galaxy and galaxy-galaxy clustering, we obtain tight constraints on key parameters of cosmological models. Moreover, combining these results with measurements from the cosmic microwave background (CMB) and supernovae (SN) further improves the constraints on these parameters.
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
(2023)
Article
Astronomy & Astrophysics
Enrique Paillas, Carolina Cuesta-Lazaro, Pauline Zarrouk, Yan-Chuan Cai, Will J. Percival, Seshadri Nadathur, Mathilde Pinon, Arnaud de Mattia, Florian Beutler
Summary: The dependence of galaxy clustering on local density can extract non-Gaussian information from galaxy surveys. The density-split clustering (DS) method combines clustering statistics from regions of different environmental density and provides more precise constraints on the parameters of the nu?CDM model compared to the two-point correlation function (2PCF). DS improves the constraints on various cosmological parameters and can recover lost information when using redshift-space halo positions to estimate the environment.
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
(2023)
Article
Physics, Multidisciplinary
Robert N. Cahn, Zachary Slepian, Jiamin Hou
Summary: We describe how the galaxy four-point correlation function can be used to test for cosmological parity violation, which would indicate unknown forces in the early universe. Recent advancements in evaluating galaxy N-point correlation functions and determining the corresponding covariance matrices enable the search for parity violation in the four-point correlation function in ongoing and upcoming surveys. We estimate the potential limits on cosmic parity violation that can be achieved using these data.
PHYSICAL REVIEW LETTERS
(2023)
Article
Astronomy & Astrophysics
Lucas Napolitano, Agnesh Pandey, Adam D. Myers, Ting-Wen Lan, Abhijeet Anand, Jessica Aguilar, Steven Ahlen, David M. Alexander, David Brooks, Rebecca Canning, Chiara Circosta, Axel de la Macorra, Peter Doel, Sarah Eftekharzadeh, Victoria A. Fawcett, Andreu Font-Ribera, Juan Garcia-Bellido, Satya Gontcho, L. Le Guillou, Julien Guy, Klaus Honscheid, Stephanie Juneau, T. Kisner, Martin Landriau, Aaron M. Meisner, Ramon Miquel, J. Moustakas, Will J. Percival, J. Xavier Prochaska, Michael Schubnell, Gregory Tarle, B. A. Weaver, Benjamin Weiner, Zhimin Zhou, Hu Zou, Siwei Zou
Summary: We have detected Magnesium II (Mg ii) absorbers through the early data release of the Dark Energy Spectroscopic Instrument (DESI). Our analysis shows that DESI will be able to observe over 99% of the approximately 3 million quasars (QSOs) at redshifts greater than z > 0.3, allowing for the detection of associated or intervening Mg ii absorbers. The resulting catalog of Mg ii absorbers will provide valuable information on circumgalactic medium environments, intervening galaxies, and the growth of metallicity across a wide redshift range.
ASTRONOMICAL JOURNAL
(2023)
Article
Astronomy & Astrophysics
S. Radinovic, S. Nadathur, H-A. Winther, W. J. Percival, A. Woodfinden, E. Massara, E. Paillas, S. Contarini, N. Hamaus, A. Kovacs, A. Pisani, G. Verza, M. Aubert, A. Amara, N. Auricchio, M. Baldi, D. Bonino, E. Branchini, M. Brescia, S. Camera, V. Capobianco, C. Carbone, V. F. Cardone, J. Carretero, M. Castellano, S. Cavuoti, A. Cimatti, R. Cledassou, G. Congedo, L. Conversi, Y. Copin, L. Corcione, F. Courbin, A. Da Silva, M. Douspis, F. Dubath, X. Dupac, S. Farrens, S. Ferriol, P. Fosalba, M. Frailis, E. Franceschi, M. Fumana, S. Galeotta, B. Garilli, W. Gillard, B. Gillis, C. Giocoli, A. Grazian, F. Grupp, S. V. H. Haugan, W. Holmes, A. Hornstrup, K. Jahnke, M. Kuemmel, A. Kiessling, M. Kilbinger, T. Kitching, H. Kurki-Suonio, S. Ligori, P. B. Lilje, I. Lloro, E. Maiorano, O. Mansutti, O. Marggraf, K. Markovic, F. Marulli, R. Massey, S. Mei, M. Melchior, Y. Mellier, M. Meneghetti, E. Merlin, G. Meylan, M. Moresco, L. Moscardini, S-M. Niemi, J. W. Nightingale, T. Nutma, C. Padilla, S. Paltani, F. Pasian, K. Pedersen, V. Pettorino, S. Pires, G. Polenta, M. Poncet, L. A. Popa, L. Pozzetti, F. Raison, A. Renzi, J. Rhodes, G. Riccio, E. Romelli, M. Roncarelli, C. Rosset, R. Saglia, D. Sapone, B. Sartoris, P. Schneider, A. Secroun, G. Seidel, S. Serrano, C. Sirignano, G. Sirri, L. Stanco, J-L. Starck, C. Surace, P. Tallada-Crespi, I. Tereno, R. Toledo-Moreo, F. Torradeflot, I. Tutusaus, E. A. Valentijn, L. Valenziano, T. Vassallo, Y. Wang, J. Weller, G. Zamorani, J. Zoubian, V. Scottez
Summary: This study investigates the cosmological constraints that can be obtained from the cross-correlation measurement of cosmic voids identified in the Euclid spectroscopic survey. The study finds that Euclid voids can accurately constrain the ratio of the transverse comoving distance and Hubble distance, as well as the growth rate, with high precision. Moreover, voids alone can provide precise measurements of the matter density parameter and the dark energy equation of state.
ASTRONOMY & ASTROPHYSICS
(2023)
Article
Astronomy & Astrophysics
Boryana Hadzhiyska, A. Font-Ribera, A. Cuceu, S. Chabanier, J. Aguilar, D. Brooks, A. de la Macorra, P. Doel, D. J. Eisenstein, J. E. Forero-Romero, S. Gontcho A. Gontcho, K. Honscheid, R. Kehoe, M. Landriau, R. Miquel, Jundan Nie, W. J. Percival, G. Rossi, Gregory Tarle, Zhimin Zhou
Summary: The full-shape correlations of the Lyman alpha forest can provide valuable cosmological information. To analyze them accurately, we use the N-body simulation suite AbacusSummit to generate high-resolution Lyman alpha skewers and quasi-stellar object (QSO) catalogues. Our mocks aim to assist the Dark Energy Spectroscopic Instrument (DESI) team in their analysis of the Lyman alpha forest. We calibrate our skewers by comparing them to power spectra from a hydrodynamical simulation.
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
(2023)
Article
Astronomy & Astrophysics
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)