61 citations · 426 across the 30 of their papers we have counts for
26 papers · 1 filter
Foreground removal and 21 cm signal estimates: comparing different blind methods for the BINGO Telescope
Alessandro Marins, Filipe B. Abdalla, Elcio Abdalla +17
The BINGO radiotelescope will observe hydrogen distribution using Intensity Mapping (IM) to analyze the Dark Energy paradigm through Baryon Acoustic Oscillations. The target signal…
The BINGO project VIII: On the recoverability of the BAO signal on HI intensity mapping simulations
Camila Paiva Novaes, Jiajun Zhang, Eduardo J. de Mericia +17
A new and promising technique for observing the Universe and study the dark sector is the intensity mapping of the redshifted 21cm line of neutral hydrogen (HI). The BINGO radio te…
Performance forecasts for the primordial gravitational wave detection pipelines for AliCPT-1
Shamik Ghosh, Yang Liu, Le Zhang +17
AliCPT is the first Chinese cosmic microwave background (CMB) experiment which will make the most precise measurements of the CMB polarization in the northern hemisphere. The key s…
Testing synchrotron models and frequency resolution in BINGO 21 cm simulated maps using GNILC
Eduardo J. de Mericia, Larissa Santos, Carlos Alexandre Wuensche +16
To recover the 21 cm hydrogen line, it is essential to separate the cosmological signal from the much stronger foreground contributions at radio frequencies. The BINGO radio telesc…
The BINGO Project VI: HI Halo Occupation Distribution and Mock Building
Jiajun Zhang, Pablo Motta, Camila P. Novaes +19
BINGO (Baryon Acoustic Oscillations from Integrated Neutral Gas Observations.) is a radio telescope designed to survey from 980 MHz to 1260 MHz, observe the neutral Hydrogen (HI) 2…
The BINGO Project VII: Cosmological Forecasts from 21cm Intensity Mapping
Andre A. Costa, Ricardo G. Landim, Camila P. Novaes +17
The 21cm line of neutral hydrogen (HI) opens a new avenue in our exploration of the structure and evolution of the Universe. It provides complementary data to the current large-sca…
The BINGO Project V: Further steps in Component Separation and Bispectrum Analysis
Karin S. F. Fornazier, Filipe B. Abdalla, Mathieu Remazeilles +20
Observing the neutral hydrogen distribution across the Universe via redshifted 21cm line intensity mapping constitutes a powerful probe for cosmology. However, the redshifted 21cm…
The BINGO Project IV: Simulations for mission performance assessment and preliminary component separation steps
Vincenzo Liccardo, Eduardo J. de Mericia, Carlos A. Wuensche +21
The large-scale distribution of neutral hydrogen (HI) in the Universe is luminous through its 21 cm emission. The goal of the Baryon Acoustic Oscillations from Integrated Neutral G…
The BINGO Project I: Baryon Acoustic Oscillations from Integrated Neutral Gas Observations
Elcio Abdalla, Elisa G. M. Ferreira, Ricardo G. Landim +43
Observations of the redshifted 21-cm line of neutral hydrogen (HI) are a new and powerful window of observation that offers us the possibility to map the spatial distribution of co…
Baryon Acoustic Oscillations from Integrated Neutral Gas Observations: an instrument to observe the 21cm hydrogen line in the redshift range 0.13 z 0.45 -- status update
Carlos A. Wuensche, Elcio Abdalla, Filipe Batoni Abdalla +48
BINGO (BAO from Integrated Neutral Gas Observations) is a unique radio telescope designed to map the intensity of neutral hydrogen distribution at cosmological distances, making th…
Fast scalar quadratic maximum likelihood estimators for the CMB B-mode power spectrum
Jiming Chen, Shamik Ghosh, Hao Liu +9
Constructing a fast and efficient estimator for the B-mode power spectrum of cosmic microwave background (CMB) is of critical importance for CMB science. For a general CMB survey,…
Towards ending the partial sky E-B ambiguity in CMB observations
Shamik Ghosh, Jacques Delabrouille, Wen Zhao +1
A crucial problem for partial sky analysis of CMB polarization is the - leakage problem. Such leakage arises from the presence of `ambiguous' modes that satisfy properties of…
Reconstructing simulated CMB polarization power spectra with the Analytical Blind Separation method
Larissa Santos, Jian Yao, Le Zhang +6
Multi-frequency observations are needed to separate the CMB from foregrounds and accurately extract cosmological information from the data. The Analytical Blind Separation (ABS) me…
Testing the ABS method with the simulated Planck temperature maps
Jian Yao, Le Zhang, Yuxi Zhao +3
In this study, we apply the Analytical method of Blind Separation (ABS) of the cosmic microwave background (CMB) from foregrounds to estimate the CMB temperature power spectrum fro…
The weird side of the Universe: Preferred axis
Wen Zhao, Larissa Santos
In both WMAP and Planck observations on the temperature anisotropy of cosmic microwave background (CMB) radiation a number of large-scale anomalies were discovered in the past year…
Statical properties of CMB B-mode polarisation in a partial sky analysis
Larissa Santos, Wen Zhao
Measuring the imprint of primordial gravitational waves in the cosmic microwave background (CMB) polarisation field is one of the main goals in modern cosmology. However, the so ca…
Constraining interacting dark energy with CMB and BAO future surveys
Larissa Santos, Wen Zhao, Elisa G. M. Ferreira +1
In this paper, we perform a forecast analysis to test the capacity of future baryon acoustic oscillation (BAO) and cosmic microwave background (CMB) experiments to constrain phenom…
Statistical imprints of CMB B-type polarization leakage in an incomplete sky survey analysis
Larissa Santos, Kai Wang, Yangrui Hu +2
One of the main goals of modern cosmology is to search for primordial gravitational waves by looking on their imprints in the B-type polarization in the cosmic microwave background…
Thermal gravitational-wave background in the general pre-inflationary scenario
Kai Wang, Larissa Santos, Jun-Qing Xia +1
We investigate the primordial gravitational waves (PGWs) in the general scenario where the inflation is preceded by a pre-inflationary stage with the effective equation of state $w…
Preferred axis in cosmology
Wen Zhao, Larissa Santos
The foundation of modern cosmology relies on the so-called cosmological principle which states an homogeneous and isotropic distribution of matter in the universe on large scales.…
Preferred axis of CMB parity asymmetry in the masked maps
Cheng Cheng, Wen Zhao, Qing-Guo Huang +1
Both WMAP and Planck data show a significant odd-multipole preference in the large scales of the cosmic microwave background (CMB) temperature anisotropies. If this pattern origina…
Probing the statistical properties of CMB -mode polarization through Minkowski Functionals
Larissa Santos, Kai Wang, Wen Zhao
The detection of the magnetic type -mode polarization is the main goal of future cosmic microwave background (CMB) experiments. In the standard model, the -mode map is a stro…
Quadrant asymmetry in the angular distribution of the Cosmic Microwave Background in the Planck satellite data
Larissa Santos, Paolo Cabella, Thyrso Villela +3
Some peculiar features found in the angular distribution of the cosmic microwave background (CMB) measured by the Wilkinson Microwave Anisotropy Probe (WMAP) deserve further invest…
Neutrinos and dark energy constraints from future galaxy surveys and CMB lensing information
Larissa Santos, Paolo Cabella, Amedeo Balbi +1
We explore the possibility of obtaining better constraints from future astronomical data by means of the Fisher information matrix formalism. In particular, we consider how cosmic…