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Proceedings Paper

Holographic beam mapping of the CHIME pathfinder array
Author(s): Philippe Berger; Laura B. Newburgh; Mandana Amiri; Kevin Bandura; Jean-François Cliche; Liam Connor; Meiling Deng; Nolan Denman; Matt Dobbs; Mateus Fandino; Adam J. Gilbert; Deborah Good; Mark Halpern; David Hanna; Adam D. Hincks; Gary Hinshaw; Carolin Höfer; Andre M. Johnson; Tom L. Landecker; Kiyoshi W. Masui; Juan Mena Parra; Niels Oppermann; Ue-Li Pen; Jeffrey B. Peterson; Andre Recnik; Timothy Robishaw; J. Richard Shaw; Seth Siegel; Kris Sigurdson; Kendrick Smith; Emilie Storer; Ian Tretyakov; Kwinten Van Gassen; Keith Vanderlinde; Donald Wiebe
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Paper 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∼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.

Paper Details

Date Published: 18 August 2016
PDF: 16 pages
Proc. SPIE 9906, Ground-based and Airborne Telescopes VI, 99060D (18 August 2016); doi: 10.1117/12.2233782
Show Author Affiliations
Philippe Berger, Canadian Institute for Theoretical Astrophysics (Canada)
Univ. of Toronto (Canada)
Laura B. Newburgh, Univ. of Toronto (Canada)
Mandana Amiri, The Univ. of British Columbia (Canada)
Kevin Bandura, McGill Univ. (Canada)
West Virginia Univ. (United States)
Jean-François Cliche, McGill Univ. (Canada)
Liam Connor, Canadian Institute for Theoretical Astrophysics (Canada)
Univ. of Toronto (Canada)
Meiling Deng, The Univ. of British Columbia (Canada)
Nolan Denman, Univ. of Toronto (Canada)
Matt Dobbs, McGill Univ. (Canada)
Mateus Fandino, The Univ. of British Columbia (Canada)
Adam J. Gilbert, McGill Univ. (Canada)
Deborah Good, The Univ. of British Columbia (Canada)
Mark Halpern, The Univ. of British Columbia (Canada)
David Hanna, McGill Univ. (Canada)
Adam D. Hincks, The Univ. of British Columbia (Canada)
Univ. degli Studi di Roma "La Sapienza" (Italy)
Gary Hinshaw, The Univ. of British Columbia (Canada)
Carolin Höfer, The Univ. of British Columbia (Canada)
Andre M. Johnson, AMJ Consulting (Canada)
Tom L. Landecker, NRC - Dominion Radio Astrophysical Observatory (Canada)
Kiyoshi W. Masui, The Univ. of British Columbia (Canada)
Juan Mena Parra, McGill Univ. (Canada)
Niels Oppermann, Canadian Institute for Theoretical Astrophysics (Canada)
Univ. of Toronto (Canada)
Ue-Li Pen, Canadian Institute for Theoretical Astrophysics (Canada)
Canadian Institute for Advanced Research (Canada)
Univ. of Toronto (Canada)
Jeffrey B. Peterson, Carnegie Mellon Univ. (United States)
Andre Recnik, Univ. of Toronto (Canada)
Timothy Robishaw, NRC - Dominion Radio Astrophysical Observatory (Canada)
J. Richard Shaw, Canadian Institute for Theoretical Astrophysics (Canada)
Univ. of Toronto (Canada)
Seth Siegel, McGill Univ. (Canada)
Kris Sigurdson, The Univ. of British Columbia (Canada)
Kendrick Smith, Perimeter Institute for Theoretical Physics (Canada)
Emilie Storer, McGill Univ. (Canada)
Ian Tretyakov, Univ. of Toronto (Canada)
Kwinten Van Gassen, The Univ. of British Columbia (Canada)
Keith Vanderlinde, Univ. of Toronto (Canada)
West Virginia Univ. (United States)
Donald Wiebe, The Univ. of British Columbia (Canada)


Published in SPIE Proceedings Vol. 9906:
Ground-based and Airborne Telescopes VI
Helen J. Hall; Roberto Gilmozzi; Heather K. Marshall, Editor(s)

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