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
P. Ade, M. Aravena, E. Barria, A. Beelen, A. Benoit, M. Bethermin, J. Bounmy, O. Bourrion, G. Bres, C. De Breuck, M. Calvo, Y. Cao, A. Catalano, F. -X. Desert, C. A. Duran, A. Fasano, T. Fenouillet, J. Garcia, G. Garde, J. Goupy, C. Groppi, C. Hoarau, G. Lagache, J. -C. Lambert, J. -P. Leggeri, F. Levy-Bertrand, J. Macias-Perez, H. Mani, J. Marpaud, P. Mauskopf, A. Monfardini, G. Pisano, N. Ponthieu, L. Prieur, S. Roni, S. Roudier, D. Tourres, C. Tucker
ASTRONOMY & ASTROPHYSICS
(2020)
Article
Astronomy & Astrophysics
S. Berta, A. J. Young, P. Cox, R. Neri, B. M. Jones, A. J. Baker, A. Omont, L. Dunne, A. Carnero Rosell, L. Marchetti, M. Negrello, C. Yang, D. A. Riechers, H. Dannerbauer, I. Perez-Fournon, P. van der Werf, T. Bakx, R. J. Ivison, A. Beelen, V. Buat, A. Cooray, I. Cortzen, S. Dye, S. Eales, R. Gavazzi, A. I. Harris, C. N. Herrera, D. Hughes, S. Jin, M. Krips, G. Lagache, M. Lehnert, H. Messias, S. Serjeant, F. Stanley, S. Urquhart, C. Vlahakis, A. Weiss
Summary: By exploiting the sensitivity of the IRAM Northern Extended Millimeter Array (NOEMA) and processing large bandwidths, the study of the star forming galaxy H-ATLAS J131611.5 +281219 revealed important properties such as the morphology of molecular gas and dust. High angular resolution imaging provided insights into the molecular emission lines and dust continuum emission, with additional data from the Very Large Array and Hubble Space Telescope contributing to a better understanding of the galaxy's structure and dynamics.
ASTRONOMY & ASTROPHYSICS
(2021)
Article
Astronomy & Astrophysics
Hideki Tanimura, Saleem Zaroubi, Nabila Aghanim
Summary: This study reports the direct detection of the kSZ effect in galaxy clusters, using a novel technique to avoid the cancellation of signals and determining the gas fraction in clusters, comparing the results with simulations. The measured gas fraction value is statistically consistent with previous measurements and simulations as well as with the universal value within the measurement uncertainty.
ASTRONOMY & ASTROPHYSICS
(2021)
Article
Astronomy & Astrophysics
A. J. Rigby, N. Peretto, R. Adam, P. Ade, M. Anderson, P. Andre, A. Andrianasolo, H. Aussel, A. Bacmann, A. Beelen, A. Benoit, S. Berta, O. Bourrion, A. Bracco, M. Calvo, A. Catalano, M. De Petris, F-X Desert, S. Doyle, E. F. C. Driessen, P. Garcia, A. Gomez, J. Goupy, F. Keruzore, C. Kramer, B. Ladjelate, G. Lagache, S. Leclercq, J-F Lestrade, J. F. Macias-Perez, P. Mauskopf, F. Mayet, A. Monfardini, L. Perotto, G. Pisano, N. Ponthieu, V Reveret, I Ristorcelli, A. Ritacco, C. Romero, H. Roussel, F. Ruppin, K. Schuster, S. Shu, A. Sievers, C. Tucker, E. J. Watkins
Summary: The study conducted high-sensitivity and large-scale mapping of a fraction of the Galactic plane using the NIKA2 camera on the IRAM telescope, resulting in the discovery of a new population of dust clumps, with approximately 80% being potentially starless candidates, suggesting a possibility of clump-fed high-mass star formation.
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
(2021)
Article
Astronomy & Astrophysics
Daniela Galarraga-Espinosa, Nabila Aghanim, Mathieu Langer, Hideki Tanimura
Summary: The study focuses on the gas phases around cosmic-web filaments detected in the TNG300-1 hydro-dynamical simulation at redshift z=0. The gas is divided into five different phases based on temperature and density. The research reveals that gas in filaments is mainly dominated by the warm-hot intergalactic medium (WHIM) and also contains contributions from other hotter and denser gas phases. Gas in filaments shows an isothermal state with pressure and temperature profiles. The findings suggest that the state of the gas in filaments depends on the presence of haloes and the large-scale environment.
ASTRONOMY & ASTROPHYSICS
(2021)
Article
Astronomy & Astrophysics
A. Fasano, J. F. Macias-Perez, A. Benoit, M. Aguiar, A. Beelen, A. Bideaud, J. Bounmy, O. Bourrion, G. Bres, M. Calvo, J. A. Castro-Almazan, A. Catalano, P. de Bernardis, M. De Petris, A. P. de Taoro, M. Fernandez-Torreiro, G. Garde, R. Genova-Santos, A. Gomez, M. F. Gomez-Renasco, J. Goupy, C. Hoarau, R. Hoyland, G. Lagache, J. Marpaud, M. Marton, A. Monfardini, M. W. Peel, G. Pisano, N. Ponthieu, R. Rebolo, S. Roudier, J. A. Rubino-Martin, D. Tourres, C. Tucker, C. Vescovi
Summary: This study introduces an original readout modulation method to enhance sky signal reconstruction accuracy, demonstrating its feasibility through simulations and on-sky calibration. The method can reconstruct the sky signal to better than 0.5% for astrophysical sources and to better than 2% for large background variations, with validation through observations during the KISS commissioning campaign.
ASTRONOMY & ASTROPHYSICS
(2021)
Article
Astronomy & Astrophysics
Hideki Tanimura, Marian Douspis, Nabila Aghanim, Laura Salvati
Summary: A new all-sky Compton parameter map of the thermal Sunyaev-Zel'dovich effect was constructed using data from the Planck mission, showing a 7% decrease in noise compared to previous maps. However, residual foreground contamination remains an issue, mainly from thermal dust emission and cosmic infrared background. The cosmological analysis based on the tSZ angular power spectrum found a value for S-8 that is consistent with weak-lensing observations from other surveys, though slightly lower than the Planck CMB results.
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
(2022)
Article
Astronomy & Astrophysics
S. A. Urquhart, G. J. Bendo, S. Serjeant, T. Bakx, M. Hagimoto, P. Cox, R. Neri, M. Lehnert, C. Sedgwick, C. Weiner, H. Dannerbauer, A. Amvrosiadis, P. Andreani, A. J. Baker, A. Beelen, S. Berta, E. Borsato, V Buat, K. M. Butler, A. Cooray, G. De Zotti, L. Dunne, S. Dye, S. Eales, A. Enia, L. Fan, R. Gavazzi, J. Gonzalez-Nuevo, A. Harris, C. N. Herrera, D. Hughes, D. Ismail, R. Ivison, S. Jin, B. Jones, K. Kohno, M. Krips, G. Lagache, L. Marchetti, M. Massardi, H. Messias, M. Negrello, A. Omont, I Perez-Fournon, D. A. Riechers, D. Scott, M. W. L. Smith, F. Stanley, Y. Tamura, P. Temi, C. Vlahakis, A. Weiss, P. van der Werf, A. Verma, C. Yang, A. J. Young
Summary: This study presents spectroscopic measurements for 71 galaxies associated with 62 of the brightest high-redshift submillimetre sources. They obtained reliable redshift measurements for all sources using ALMA and the 12-m Array, and found that the CO(1-0) luminosity is significantly elevated relative to the line-width to CO(1-0) luminosity scaling relation, suggesting the presence of lensing magnification.
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
(2022)
Article
Astronomy & Astrophysics
Hideki Tanimura, Nabila Aghanim, Victor Bonjean, Saleem Zaroubi
Summary: We detected the kinetic Sunyaev-Zel'dovich effect in 30,431 galaxy clusters using the latest Planck map. By training a convolutional neural network, we estimated the line-of-sight velocities of the clusters and determined the gas mass fraction to be 0.09 within the clusters.
ASTRONOMY & ASTROPHYSICS
(2022)
Review
Astronomy & Astrophysics
Carlo Burigana, Elia Sefano Battistelli, Laura Bonavera, Tirthankar Roy Choudhury, Marcos Lopez-Caniego, Constantinos Skordis, Raelyn Marguerite Sullivan, Hideki Tanimura, Seddigheh Tizchang, Matthieu Tristram, Amanda Weltman
Summary: Cosmological and astrophysical surveys provide a unique perspective on the properties and evolution of the universe. This article discusses the role of fast radio bursts and the analysis of the 21 cm redshifted line from neutral hydrogen in cosmology. It also presents the Planck Legacy Archive, its scientific information, and future developments, as well as the cosmological results from the Planck mission. Additionally, it explores future perspectives and alternative scenarios in cosmology.
INTERNATIONAL JOURNAL OF MODERN PHYSICS D
(2022)
Article
Physics, Applied
A. Monfardini, A. Beelen, A. Benoit, J. Bounmy, M. Calvo, A. Catalano, J. Goupy, G. Lagache, P. Ade, E. Barria, M. Bethermin, O. Bourrion, G. Bres, C. De Breuck, F-X Desert, G. Duvauchelle, A. Fasano, T. Fenouillet, J. Garcia, G. Garde, C. Hoarau, W. Hu, J-C Lambert, F. Levy-Bertrand, A. Lundgren, J. Macias-Perez, J. Marpaud, G. Pisano, N. Ponthieu, L. Prieur, S. Roni, S. Roudier, D. Tourres, C. Tucker, M. Cantzler, P. Caro, M. Diaz, C. Duran, F. Montenegro, M. Navarro, R. Olguin, F. Palma, R. Parra, J. Santana
Summary: CONCERTO is a large field-of-view spectral-imaging instrument that operates on the Chajnantor plateau. It utilizes a high-speed Fourier Transform Spectrometer and a low-temperature cryostat to obtain spectra quickly.
JOURNAL OF LOW TEMPERATURE PHYSICS
(2022)
Article
Astronomy & Astrophysics
M. Bethermin, A. Gkogkou, M. Van Cuyck, G. Lagache, A. Beelen, M. Aravena, A. Benoit, J. Bounmy, M. Calvo, A. Catalano, B. de Batz de Trenquelleon, C. De Breuck, A. Fasano, A. Ferrara, J. Goupy, C. Hoarau, C. Horellou, W. Hu, A. Julia, K. Knudsen, J-C Lambert, J. Macias-Perez, J. Marpaud, A. Monfardini, A. Pallottini, N. Ponthieu, Y. Roehlly, L. Vallini, F. Walter, A. Weiss
Summary: The intensity mapping of the [CII] 158- mu m line can provide insights into the star formation and large-scale structures at high redshifts. Through simulations and predictions, it is shown that the measurements of the [CII] power spectrum are highly uncertain, highlighting the importance of future observations. The results also demonstrate the contribution of different astrophysical components to the power spectra at various redshifts.
ASTRONOMY & ASTROPHYSICS
(2022)
Article
Instruments & Instrumentation
Julien Bounmy, Christophe Hoarau, Juan-Francisco Macias-Perez, Alexandre Beelen, Alain Benoit, Olivier Bourrion, Martino Calvo, Andrea Catalano, Alessandro Fasano, Johannes Goupy, Guilaine Lagache, Julien Marpauda, Alessandro Monfardini
Summary: This paper describes the online algorithms developed for probing Lumped Element Kinetic Inductance Detectors (LEKID) and their applications in astronomy. LEKIDs are superconducting microwave resonators capable of detecting millimeter wavelength light and are suitable for frequency multiplexing. However, using LEKIDs for astronomical observations requires specific readout and acquisition systems.
JOURNAL OF INSTRUMENTATION
(2022)
Article
Instruments & Instrumentation
O. Bourrion, C. Hoarau, J. Bounmy, D. Tourres, C. Vescovi, J-L Bouly, N. Ponchant, A. Beelen, M. Calvo, A. Catalano, J. Goupy, G. Lagache, J-F Macias-Perez, J. Marpaud, A. Monfardini
Summary: The CONCERTO spectral-imaging instrument was installed on the APEX telescope in April 2021. It is designed to observe radiation emitted by ionized carbon atoms and set the first constraints on the power spectrum of dusty star-forming galaxies using the intensity mapping technique. The instrument features multiple pixel arrays, cold optics, and a fast Fourier transform spectrometer, as well as a newly designed electronic system.
JOURNAL OF INSTRUMENTATION
(2022)
Article
Astronomy & Astrophysics
S. Muller, I. Marti-Vidal, F. Combes, M. Gerin, A. Beelen, C. Horellou, M. Guelin, S. Aalto, J. H. Black, E. van Kampen
Summary: This article studies the time variations of the PKS 1830-211 system to obtain information about both the activity of the quasar and small-scale structures in the absorber. The results show that the system's variability is related to the quasar's intrinsic activity, and significant variations are observed in the absorption profile of the foreground absorber.
ASTRONOMY & ASTROPHYSICS
(2023)
