activity
20092026
most citedDetection of Cosmological 21 cm Emission with the Canadian Hydrogen Intensity Mapping Experiment

92 citations · 348 across the 29 of their papers we have counts for

collaborators

29 papers

astro-ph.GA2026

Faraday depth similarities across scales with LoTSS & DRAGONS

Anna Ordog, Rebecca A. Booth, Ana Erceg +5

Faraday rotation of diffuse Galactic synchrotron emission is a powerful tracer of the complex, magnetised interstellar medium (ISM), whose structures span a wide range of spatial s…

astro-ph.GA2026

3D Magnetic Field Vectors in Space: Bubbles, Clouds, and Filaments

Mehrnoosh Tahani, Anna Ordog, Jennifer West +3

Magnetic fields play important roles in the star-formation process across different spatial scales. The interplay between magnetic field strength (a key component of the interstell…

astro-ph.GA2026

The magnetic field in the Milky Way Galaxy: from large to small scales

Xiaohui Sun, Jennifer West, Marijke Haverkorn +6

The Milky Way is the galaxy in which we can study its magnetic field to the finest details, providing an ideal laboratory to understand the fundamental questions: how magnetic fiel…

astro-ph.GA2026

The radial component of the local Galactic magnetic field in 3D

Lewis McCallum, Philipp Frank, Sebastian Hutschenreuter +9

We present a distance-resolved reconstruction of the local line-of-sight Galactic magnetic field, , by combining a 3D electron density () map derived from dust map-i…

astro-ph.GA2026

Segmenting Superbubbles in a Simulated Multiphase Interstellar Medium using Computer Vision

Jing-Wen Chen, Alex S. Hill, Anna Ordog +2

We developed a computer vision-based methodology to achieve precise 3D segmentation and tracking of superbubbles within magnetohydrodynamic simulations of the supernova-driven inte…

astro-ph.GA2025★ 3 cited

A three-dimensional model for the reversal in the local large-scale interstellar magnetic field

Rebecca A. Booth, Anna Ordog, Jo-Anne Brown +8

We probe the three-dimensional geometry of the large-scale Galactic magnetic field within 1 kpc of the Sun using the Dominion Radio Astrophysical Observatory (DRAO) Global Magneto-…

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★ 2 cited

GMIMS-DRAGONS: A Faraday Depth Survey of the Northern Sky Covering 350-1030 MHz

Anna Ordog, Rebecca A. Booth, T. L. Landecker +25

Polarized synchrotron emission at meter to centimeter wavelengths provides an effective tracer of the Galactic magnetic field. Calculating Faraday depth, the most useful parameter…

astro-ph.GA2025★ 2 cited

A new window into the sub-parsec scale magnetic field in the Milky Way? Unveiling small-scale magneto-ionic structures with Faraday complexity

Yik Ki Ma, Amit Seta, N. M. McClure-Griffiths +9

Radio broadband spectro-polarimetric observations are sensitive to the spatial fluctuations of the Faraday depth (FD) within the telescope beam. Such FD fluctuations are referred t…

astro-ph.GA2025★ 3 cited

A pioneering experiment combining single-antenna and aperture-synthesis data to measure Faraday rotation with GMIMS and the CGPS

Anna Ordog, Jo-Anne C. Brown, T. L. Landecker +11

Structures in the magnetoionic medium exist across a wide range of angular sizes owing to large-scale magnetic fields coherent over the Galactic spiral arms combined with small-sca…

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.GA2024★ 5 cited

Faraday moments of the Southern Twenty-centimeter All-sky Polarization Survey (STAPS)

N. Raycheva, M. Haverkorn, S. Ideguchi +15

Faraday tomography of broadband radio polarization surveys enables us to study magnetic fields and their interaction with the interstellar medium (ISM). Such surveys include the Gl…

astro-ph.GA2024

Faraday tomography with CHIME: the `tadpole' feature G137+7

Nasser Mohammed, Anna Ordog, Rebecca A. Booth +27

A direct consequence of Faraday rotation is that the polarized radio sky does not resemble the total intensity sky at long wavelengths. We analyze G137+7, which is undetectable in…

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…

astro-ph.HE2023

Constraints on the Intergalactic and Local Dispersion Measure of Fast Radio Bursts with the CHIME/FRB far side-lobe events

Hsiu-Hsien Lin, Paul Scholz, Cherry Ng +40

We study the 10 fast radio bursts (FRBs) detected in the far side-lobe region of the CHIME telescope from 2018 August 28 to 2021 August 31. We find that the far side-lobe events ha…

astro-ph.GA2022

Structure in the Magnetic Field of the Milky Way Disk and Halo traced by Faraday Rotation

John M. Dickey, Jennifer West, Alec J. M. Thomson +14

Magnetic fields in the ionized medium of the disk and halo of the Milky Way impose Faraday rotation on linearly polarized radio emission. We compare two surveys mapping the Galacti…

astro-ph.IM2022

Characterization of the John A. Galt telescope for radio holography with CHIME

Alex Reda, Tristan Pinsonneault-Marotte, Meiling Deng +21

The Canadian Hydrogen Intensity Mapping Experiment (CHIME) will measure the 21 cm emission of astrophysical neutral hydrogen to probe large scale structure at redshifts z=0.8-2.5.…

astro-ph.CO2022★ 92 cited

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…

astro-ph.IM2022★ 19 cited

Using the Sun to Measure the Primary Beam Response of the Canadian Hydrogen Intensity Mapping Experiment

CHIME Collaboration, Mandana Amiri, Kevin Bandura +27

We present a beam pattern measurement of the Canadian Hydrogen Intensity Mapping Experiment (CHIME) made using the Sun as a calibration source. As CHIME is a pure drift scan instru…

astro-ph.IM2022

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…

astro-ph.GA2021★ 29 cited

The Global Magneto-Ionic Medium Survey: A Faraday Depth Survey of the Northern Sky Covering 1280-1750 MHz

M. Wolleben, T. L. Landecker, K. A. Douglas +17

The Galactic interstellar medium hosts a significant magnetic field, which can be probed through the synchrotron emission produced from its interaction with relativistic electrons.…

astro-ph.HE2021★ 88 cited

Sub-second periodicity in a fast radio burst

FRB Collaboration, Bridget C. Andersen, Kevin Bandura +59

Fast radio bursts (FRBs) are millisecond-duration flashes of radio waves that are visible at distances of billions of light-years. The nature of their progenitors and their emissio…

astro-ph.GA2021★ 10 cited

The Global Magneto-Ionic Medium Survey (GMIMS): The brightest polarized region in the Southern sky at 75cm and its implications for Radio Loop II

Alec J. M. Thomson, T. L. Landecker, N. M. McClure-Griffiths +16

Using the Global Magneto-Ionic Medium Survey (GMIMS) Low-Band South (LBS) southern sky polarization survey, covering 300 to 480 MHz at 81 arcmin resolution, we reveal the brightest…