Holographic Beam Measurements of the Canadian Hydrogen Intensity Mapping Experiment (CHIME)
M Amiri, A Chakraborty, S Foreman… - The Astrophysical …, 2024 - iopscience.iop.org
We present the first results of the holographic beam-mapping program for the Canadian
Hydrogen Intensity Mapping Experiment (CHIME). We describe the implementation of a …
Hydrogen Intensity Mapping Experiment (CHIME). We describe the implementation of a …
21 cm Intensity Mapping with the DSA-2000
Line-intensity mapping is a promising probe of the Universe's large-scale structure. We
explore the sensitivity of the DSA-2000, a forthcoming array consisting of over 2000 dishes …
explore the sensitivity of the DSA-2000, a forthcoming array consisting of over 2000 dishes …
Forecasting galaxy cluster H i mass recovery with CHIME at redshifts z = 1 and 2 via the IllustrisTNG simulations
ABSTRACT The Canadian Hydrogen Intensity Mapping Experiment (CHIME) is a drift-scan
interferometer designed to map the entire northern sky every 24 h. The all-sky coverage and …
interferometer designed to map the entire northern sky every 24 h. The all-sky coverage and …
Intensity mapping of intergalactic Lyman- haloes before reionization
H Padmanabhan, A Loeb - arXiv preprint arXiv:2408.16820, 2024 - arxiv.org
We use the inferred evolution of Lyman-$\alpha $ luminosities of galaxies in the redshift
range of $ z\sim 9-16$ from the $ James\Webb\Space\Telescope $(JWST) data to predict the …
range of $ z\sim 9-16$ from the $ James\Webb\Space\Telescope $(JWST) data to predict the …
Impacts and Statistical Mitigation of Missing Data on the 21 cm Power Spectrum: A Case Study with the Hydrogen Epoch of Reionization Array
The precise characterization and mitigation of systematic effects is one of the biggest
roadblocks impeding the detection of the fluctuations of cosmological 21 cm signals. Missing …
roadblocks impeding the detection of the fluctuations of cosmological 21 cm signals. Missing …
Forecasts and Statistical Insights for Line Intensity Mapping Cross-correlations: A Case Study with 21 cm×[C ii]
H Fronenberg, A Liu - The Astrophysical Journal, 2024 - iopscience.iop.org
Intensity mapping—the large-scale mapping of selected spectral lines without resolving
individual sources—is quickly emerging as an efficient way to conduct large cosmological …
individual sources—is quickly emerging as an efficient way to conduct large cosmological …
Probing dark energy using anisotropies in the clustering of post-EoR H i distribution
We propose an anisotropy quantifier of the H i 21-cm signal traditionally used to clock the
astrophysics of the reionization era as a post-reionization dark energy diagnostic. We find …
astrophysics of the reionization era as a post-reionization dark energy diagnostic. We find …
Hydrogen intensity mapping with MeerKAT: Preserving cosmological signal by optimising contaminant separation
Removing contaminants is a delicate yet crucial step in neutral hydrogen (HI) intensity
mapping, often considered the technique's greatest challenge. Here, we address this …
mapping, often considered the technique's greatest challenge. Here, we address this …
A Generalized Method for Characterizing 21-cm Power Spectrum Signal Loss from Temporal Filtering of Drift-scanning Visibilities
A successful detection of the cosmological 21-cm signal from intensity mapping experiments
(for example, during the Epoch of Reioinization or Cosmic Dawn) is contingent on the …
(for example, during the Epoch of Reioinization or Cosmic Dawn) is contingent on the …
Beam Maps of the Canadian Hydrogen Intensity Mapping Experiment (CHIME) Measured with a Drone
W Tyndall, A Reda, JR Shaw, K Bandura… - arXiv preprint arXiv …, 2024 - arxiv.org
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 …
deployed on a drone payload. During test flights, the pulsing calibration source and the …