LRP 2020 Whitepaper: The Canadian Hydrogen Observatory and Radio-transient Detector (CHORD)

@article{Vanderlinde2019LRP2W,
  title={LRP 2020 Whitepaper: The Canadian Hydrogen Observatory and Radio-transient Detector (CHORD)},
  author={Keith Vanderlinde and Kevin Bandura and Leonid Belostotski and Robert Alexander Bond and P. J. Boyle and J. C. Brown and H. C. Chiang and M. A. Dobbs and Bryan M. Gaensler and Gary F. Hinshaw and Victoria M. Kaspi and Tom L. Landecker and A. Liu and Kiyoshi W. Masui and Juan Mena-Parra and Cherry Ng and Ue-li Pen and Michael P. Rupen and Jonathan L. Sievers and K. S. Smith and Kristine Spekkens and Ingrid H. Stairs and Neil Turok},
  journal={arXiv: Instrumentation and Methods for Astrophysics},
  year={2019}
}
The Canadian Hydrogen Observatory and Radio-transient Detector (CHORD) is a next-generation radio telescope, proposed for construction to start immediately. CHORD is a pan-Canadian project, designed to work with and build on the success of the Canadian Hydrogen Intensity Mapping Experiment (CHIME). It is an ultra-wideband, "large-N, small-D" telescope, consisting of a central array of 512x6-m dishes, supported by a pair of distant outrigger stations, each equipped with CHIME-like cylinders and… 

Figures and Tables from this paper

Packed Ultra-wideband Mapping Array (PUMA): A Radio Telescope for Cosmology and Transients

PUMA is a proposal for an ultra-wideband, low-resolution and transit interferometric radio telescope operating at $200-1100\,\mathrm{MHz}$. Its design is driven by six science goals which span three

Mechanical and optical design of the HIRAX radio telescope

The Hydrogen Intensity and Real-time Analysis eXperiment (HIRAX) is a planned interferometric radio telescope array that will ultimately consist of 1024 close packed 6 m dishes that will be deployed

Metrology of Deep Dish Development array (D3A) for precision alignment and surface deformation analysis

TLDR
A 2-element interferometer called Deep Dish Development Array (D3A), with a targeted precision of 1/1000th of a wavelength at 300 MHz, located at Dominion Radio Astrophysical Observatory, located in Penticton, BC, Canada, is built.

Initial results from a real-time FRB search with the GBT

We present the data analysis pipeline, commissioning observations, and initial results from the greenburst fast radio burst (FRB) detection system on the Robert C. Byrd Green Bank Telescope (GBT)

Are we there yet? Science-based roadmaps for astronomy technology research and development

The National Research Council Canada Herzberg Astronomy and Astrophysics Research Centre (NRC/HAA) is one of a few astrophysics research centers in the world that embodies science, technology

Canada and the SKA from 2020-2030

This white paper submitted for the 2020 Canadian Long-Range Planning process (LRP2020) presents the prospects for Canada and the Square Kilometre Array (SKA) from 2020-2030, focussing on the first

Wave effects in the microlensing of pulsars and FRBs by point masses

Wave effects are often neglected in microlensing studies; however, for coherent point-like sources, such as pulsars and fast radio bursts (FRBs), wave effects will become important in their

Multi-plane lensing in wave optics

Wave effects in lensing form a rich field on the intersection of classical caustic singularities and quantum interference, yet are notoriously difficult to model. I present a new method to define and

Snowmass2021 Cosmic Frontier White Paper: 21cm Radiation as a Probe of Physics Across Cosmic Ages

The 21 cm line refers to a forbidden transition in neutral hydrogen associated with alignment of spins of the proton and electron. It is a very low energy transition that is emitted whenever there is

Generalized redundant calibration of radio interferometers

TLDR
A generalized algorithm in which a per-antenna gain is replaced with a number of gains can successfully retrieve data from an approximately redundant array on square lattice with pointing and geometry errors, but that the models parameters are unable to link to the quantities of interest.

References

SHOWING 1-4 OF 4 REFERENCES

The DSA-2000 - A Radio Survey Camera

TLDR
The DSA-2000 will be the first true radio camera, outputting science-ready image data over the 0.7 - 2 GHz frequency range with a spatial resolution of 3.5 arcsec, serving as the principal instrument for the US pulsar timing array community, and by searching for radio afterglows of compact object mergers detected by LIGO and Virgo.

The DESI Experiment Part I: Science,Targeting, and Survey Design

DESI (Dark Energy Spectroscopic Instrument) is a Stage IV ground-based dark energy experiment that will study baryon acoustic oscillations (BAO) and the growth of structure through redshift-space

Society of Photo-Optical Instrumentation Engineers

We report here the preliminary results obtained with the multi-conjugate adaptive optics (MCAO) system at the Dunn Solar Telescope (DST/NSO MCAO) and the optical setup and performances are presented

Planck 2018 results. VI. Cosmological parameters

  • 2018