MeerKLASS applies on-the-fly imaging on MeerKAT for a 10,000 sq. deg. UHF-band continuum survey at 14 arcsec resolution and 25 μJy/beam rms, run commensally with HI intensity mapping.
Holographic Beam Mapping of the CHIME Pathfinder Array
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abstract
The Canadian Hydrogen Intensity Mapping Experiment (CHIME) Pathfinder radio telescope is currently surveying the northern hemisphere between 400 and 800 MHz. By mapping the large scale structure of neutral hydrogen through its redshifted 21 cm line emission between $z \sim 0.8-2.5$ CHIME will contribute to our understanding of Dark Energy. Bright astrophysical foregrounds must be separated from the neutral hydrogen signal, a task which requires precise characterization of the polarized telescope beams. Using the DRAO John A. Galt 26 m telescope, we have developed a holography instrument and technique for mapping the CHIME Pathfinder beams. We report the status of the instrument and initial results of this effort.
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astro-ph.IM 1years
2026 1verdicts
UNVERDICTED 1representative citing papers
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Fast Simultaneous Surveys with On-the-Fly Mapping
MeerKLASS applies on-the-fly imaging on MeerKAT for a 10,000 sq. deg. UHF-band continuum survey at 14 arcsec resolution and 25 μJy/beam rms, run commensally with HI intensity mapping.