activity
20232026
most citedHolographic Beam Measurements of the Canadian Hydrogen Intensity Mapping Experiment (CHIME)

4 citations · 11 across the 16 of their papers we have counts for

collaborators

17 papers

astro-ph.IM2026

Correlated Radio Frequency Interference Monitor for Radio Telescopes

Lindsay Berkhout, Ian Hendricksen, Joshua Montgomery +8

Radio frequency interference (RFI) is one of the biggest challenges facing current radio astronomy experiments. Telescopes like the Canadian Hydrogen Observatory and Radio transien…

astro-ph.GA2026

CHORD HI-Galaxy Survey Forecasts: Searching for nearby dark galaxies and high redshift giants

Akanksha Bij, Kristine Spekkens, Hans S. Hopkins +6

Population studies of gas-rich galaxies across the full range of Neutral Hydrogen (HI) masses that galaxies are known to exhibit ($10^5 \lesssim M_{\mathrm{HI}} \lesssim 10^{11} M_…

astro-ph.CO2026

Forest without Trees is still Fruitful: Constraints on the thermal state of the neutral IGM at with the 21-cm forest power spectrum

Tomáš Šoltinský, Arnab Chakraborty, Girish Kulkarni +10

Neutral regions of the intergalactic medium (IGM) during the Epoch of Reionization (EoR) remain largely unexplored due to the limitations of existing probes. Owing to discoveries o…

astro-ph.IM2026

Overview of the Canadian Hydrogen Observatory and Radio Transient Detector (CHORD) Project

The CHORD Collaboration, Kevin Bandura, Leonid Belostotski +49

The Canadian Hydrogen Observatory and Radio-transient Detector (CHORD) is a next-generation wideband radio interferometer currently being constructed and commissioned at the Domini…

astro-ph.CO2026

Foreground Characterization and Mitigation in the Observations of the CD/EoR with the SKA

Philip Bull, Jacob Burba, Emilio Ceccotti +20

The Square Kilometre Array (SKA), with its unprecedented sensitivity, frequency coverage, and large collecting area, is poised to revolutionize our understanding of the Cosmic Dawn…

astro-ph.CO2026

Overview of 21cm Experiments at high redshift with SKAO

CD Science Working Group, Gianni Bernardi, Daniela Breitman +81

We provide an overview of the eight SKAO Science Book chapters that motivate the Epoch of Reionisation and Cosmic Dawn experiments with SKA-Low. We describe the individual SKA-Low…

astro-ph.CO2026

Observational Frontiers in the post-EoR 21-cm Intensity Mapping: Lessons from the SKA Pathfinders

Khandakar Md Asif Elahi, Somnath Bharadwaj, Philip Bull +21

The 21-cm line from neutral hydrogen has long been recognised as a promising tracer of the large-scale structure of the Universe. The line is weak however, making individual galaxy…

astro-ph.CO2026

Interpretation of 21 cm Auto Power Spectrum Measurement at by the Canadian Hydrogen Intensity Mapping Experiment

CHIME Collaboration, Mandana Amiri, Kevin Bandura +21

Observations with the Canadian Hydrogen Intensity Mapping Experiment (CHIME) have been used to measure the 21 cm intensity mapping auto power spectrum, at , over a frequen…

astro-ph.GA2026

Detection of non-thermal radio emission components from the Orion Nebula: stellar jets, cloud collision or feedback from stellar winds?

Md Rashid, Nirupam Roy, Prasun Dutta +5

The Orion Nebula is the closest high-mass star-forming region, making it an ideal laboratory to investigate physical processes in complex star-forming environments. At radio freque…

astro-ph.CO2026

The Squeezed Bispectrum from CHIME HI Emission and Planck CMB Lensing: Current Sensitivity and Forecasts

CHIME Collaboration, Arnab Chakraborty, Matt Dobbs +18

Line intensity mapping using atomic hydrogen (HI) has the potential to efficiently map large volumes of the universe if the signal can be successfully separated from overwhelmingly…

astro-ph.CO2025★ 1 cited

Detection of the Cosmological 21 cm Signal in Auto-correlation at z ~ 1 with the Canadian Hydrogen Intensity Mapping Experiment

CHIME Collaboration, Mandana Amiri, Kevin Bandura +36

We present the first detection of the cosmological 21 cm intensity mapping signal in auto-correlation at z ~ 1 with the Canadian Hydrogen Intensity Mapping Experiment (CHIME). Usin…

astro-ph.IM2025

Mitigating antenna gain errors with HyFoReS in CHIME simulations

Haochen Wang, Panupong Phoompuang, Kiyoshi W. Masui +2

Hybrid Foreground Residual Subtraction (HyFoReS) is a new family of algorithms designed to remove systematics-induced foreground contamination for 21-cm intensity mapping data. Pre…

astro-ph.GA2025

Discovery of a 21 cm absorption system at z=2.327 with CHIME

CHIME Collaboration, Mandana Amiri, Arnab Chakraborty +19

We report the detection of a new 21 cm absorption system associated with the radio source NVSS J164725+375218 at a redshift of z=2.327, identified through a pilot survey conducted…

astro-ph.CO2024★ 1 cited

Demonstration of hybrid foreground removal on CHIME data

Haochen Wang, Kiyoshi Masui, Kevin Bandura +15

The main challenge of 21 cm cosmology experiments is astrophysical foregrounds which are difficult to separate from the signal due to telescope systematics. An earlier study has sh…

astro-ph.IM2024★ 4 cited

Holographic Beam Measurements of the Canadian Hydrogen Intensity Mapping Experiment (CHIME)

Mandana Amiri, Arnab Chakraborty, Simon Foreman +17

We present the first results of the holographic beam mapping program for the Canadian Hydrogen Intensity Mapping Experiment (CHIME). We describe the implementation of the holograph…

astro-ph.IM2024★ 3 cited

Beam Maps of the Canadian Hydrogen Intensity Mapping Experiment (CHIME) Measured with a Drone

Will Tyndall, Alex Reda, J. Richard Shaw +14

We present beam measurements of the CHIME telescope using a radio calibration source deployed on a drone payload. During test flights, the pulsing calibration source and the telesc…

astro-ph.CO2023★ 2 cited

A Detection of Cosmological 21 cm Emission from CHIME in Cross-correlation with eBOSS Measurements of the Lyman- Forest

CHIME Collaboration, Mandana Amiri, Kevin Bandura +28

We report the detection of 21 cm emission at an average redshift in the cross-correlation of data from the Canadian Hydrogen Intensity Mapping Experiment (CHIME) wi…