Limits on Polarized Leakage for the PAPER Epoch of Reionization Measurements at 126 and 164 MHz

Journal Article · Mon Feb 20 04:00:00 EST 2017 · Astrophysical Journal

DOI:https://doi.org/10.3847/1538-4357/836/2/154· OSTI ID:22869343

Moore, David F.; Aguirre, James E.; Kohn, Saul A. ^[1]; Parsons, Aaron R.; Ali, Zaki S.; Liu, Adrian ^[2]; Bradley, Richard F. ^[3]; Carilli, Chris L. ^[4]; DeBoer, David R.; Dexter, Matthew R.; MacMahon, David H. E. ^[5]; Gugliucci, Nicole E. ^[6]; Jacobs, Daniel C. ^[7]; Klima, Pat ^[8]; Manley, Jason R.; Walbrugh, William P. ^[9]; Pober, Jonathan C. ^[10]; Stefan, Irina I. ^[11]

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1. Dept. of Physics and Astronomy, University of Pennsylvania, Philadelphia, PA 19104 (United States)
2. Astronomy Dept., University of California, Berkeley, CA 94720 (United States)
3. Dept. of Electrical and Computer Engineering, University of Virginia, Charlottesville, VA 22903 (United States)
4. National Radio Astronomy Observatory, Socorro, NM 87801 (United States)
5. Radio Astronomy Lab., University of California, Berkeley, CA 94720 (United States)
6. St. Anselm College, Manchester, Manchester, NH 03102 (United States)
7. School of Earth and Space Exploration, Arizona State University, Tempe, AZ 85287 (United States)
8. National Radio Astronomy Observatory, Charlottesville, VA 22903 (United States)
9. Square Kilometer Array, South Africa Project, Cape Town (South Africa)
10. Dept. of Physics, Brown University, Providence, RI 02912 (United States)
11. Cavendish Lab., University of Cambridge, Cambridge CB3 0HE (United Kingdom)

Polarized foreground emission is a potential contaminant of attempts to measure the fluctuation power spectrum of highly redshifted 21 cm H i emission from the epoch of reionization. Using the Donald C. Backer Precision Array for Probing the Epoch of Reionization, we present limits on the observed power spectra of all four Stokes parameters in two frequency bands, centered at 126 MHz (z = 10.3) and 164 MHz (z = 7.66), for a three-month observing campaign of a deployment involving 32 antennas, for which results on the unpolarized power spectrum have been reported at z = 7.7 (by Parsons et al.) and at 7.5

• OSTI ID: 22869343
• Journal Information: Astrophysical Journal, Journal Name: Astrophysical Journal Journal Issue: 2 Vol. 836; ISSN ASJOAB; ISSN 0004-637X
• Country of Publication: United States
• Language: English

Related Subjects

79 ASTRONOMY AND ASTROPHYSICS
ANTENNAS
DETECTION
EMISSION
FLUCTUATIONS
POLARIZATION
RED SHIFT
ROTATION
SPECTRA
STARS