92 citations · 427 across the 15 of their papers we have counts for
15 papers
Methodological Frontiers in 21-cm Intensity Mapping: the Treatment of Systematics and Foreground Contamination
Marta Spinelli, Matilde Barberi-Squarotti, José Luis Bernal +29
The distribution of neutral hydrogen (HI) in the post-reionization universe traces the cosmic large-scale structure and therefore serves as a powerful cosmological probe. An effici…
Deep learning approach for identification of HII regions during reionization in 21-cm observations -- II. foreground contamination
Michele Bianco, Sambit. K. Giri, David Prelogović +5
The upcoming Square Kilometre Array Observatory (SKAO) will produce images of neutral hydrogen distribution during the epoch of reionization by observing the corresponding 21-cm si…
Power-law distribution and scale-invariant structure from the first CHIME/FRB Fast Radio Burst catalog
Zi-Han Wang, Yu Sang, Xue Zhang
We study the statistical property of fast radio bursts (FRBs) based on a selected sample of 190 one-off FRBs in the first CHIME/FRB catalog. Three power law models are used in the…
Removing systematics-induced 21-cm foreground residuals by cross-correlating filtered data
Haochen Wang, Juan Mena-Parra, Tianyue Chen +1
Observations of the redshifted 21-cm signal emitted by neutral hydrogen represent a promising probe of large-scale structure in the universe. However, cosmological 21-cm signal is…
Impact of thermal SZ effect on cross-correlations between Planck CMB lensing and SDSS galaxy density fields
Tianyue Chen, Mathieu Remazeilles
Residual foreground contamination by thermal Sunyaev-Zeldovich (tSZ) effect from galaxy clusters in cosmic microwave background (CMB) maps propagates into the reconstructed CMB len…
Detection of Cosmological 21 cm Emission with the Canadian Hydrogen Intensity Mapping Experiment
CHIME Collaboration, Mandana Amiri, Kevin Bandura +30
We present a detection of 21-cm emission from large-scale structure (LSS) between redshift 0.78 and 1.43 made with the Canadian Hydrogen Intensity Mapping Experiment (CHIME). Radio…
An Overview of CHIME, the Canadian Hydrogen Intensity Mapping Experiment
The CHIME Collaboration, Mandana Amiri, Kevin Bandura +40
The Canadian Hydrogen Intensity Mapping Experiment (CHIME) is a drift scan radio telescope operating across the 400-800 MHz band. CHIME is located at the Dominion Radio Astrophysic…
The BINGO Project II: Instrument Description
Carlos A. Wuensche, Thyrso Villela, Elcio Abdalla +41
The measurement of diffuse 21-cm radiation from the hyperfine transition of neutral hydrogen (HI signal) in different redshifts is an important tool for modern cosmology. However,…
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…
The drifting subpulses of PSR B0031-07 and its synchronously modulated radio polarization
Cristina D. Ilie, Patrick Weltevrede, Simon Johnston +1
We establish that for PSR B0031-07 the orthogonal polarization modes switch at a single pulse level synchronously with the periodic drifting subpulses seen in total intensity. Ther…
Impact of SZ cluster residuals in CMB maps and CMB-LSS cross-correlations
Tianyue Chen, Mathieu Remazeilles, Clive Dickinson
Residual foreground contamination in cosmic microwave background (CMB) maps, such as the residual contamination from thermal Sunyaev-Zeldovich (SZ) effect in the direction of galax…
Impact of Simulated 1/f Noise for HI Intensity Mapping Experiments
Stuart Harper, Clive Dickinson, Richard Battye +5
Cosmology has entered an era where the experimental limitations are not due to instrumental sensitivity but instead due to inherent systematic uncertainties in the instrumentation…
Update on the BINGO 21cm intensity mapping experiment
Richard Battye, Ian Browne, Tianyue Chen +21
21cm intensity mapping is a novel approach aimed at measuring the power spectrum of density fluctuations and deducing cosmological information, notably from the Baryonic Acoustic O…
HI intensity mapping with FAST
Marie-Anne Bigot-Sazy, Yin-Zhe Ma, Richard A. Battye +7
We discuss the detectability of large-scale HI intensity fluctuations using the FAST telescope. We present forecasts for the accuracy of measuring the Baryonic Acoustic Oscillation…
The HIPASS survey of the Galactic plane in Radio Recombination Lines
Marta I. R. Alves, Mark Calabretta, Rodney D. Davies +5
We present a Radio Recombination Line (RRL) survey of the Galactic Plane from the HI Parkes All-sky Survey and associated Zone of Avoidance survey, which mapped the region l=196deg…