The CHIME Fast Radio Burst Project: System Overview

The CHIME Fast Radio Burst Project: System Overview

The Canadian Hydrogen Intensity Mapping Experiment (CHIME) is a novel transit radio telescope operating across the 400-800 MHz band. CHIME is composed of four 20 m × 100 m semicylindrical paraboloid reflectors, each of which has 256 dual-polarization feeds suspended along its axis, giving it a 200 d...

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Veröffentlicht in:The Astrophysical journal 2018-08, Vol.863 (1), p.48
Hauptverfasser: Amiri, M., Bandura, K., Berger, P., Bhardwaj, M., Boyce, M. M., Boyle, P. J., Brar, C., Burhanpurkar, M., Chawla, P., Chowdhury, J., Cliche, J.-F., Cranmer, M. D., Cubranic, D., Deng, M., Denman, N., Dobbs, M., Fandino, M., Fonseca, E., Gaensler, B. M., Giri, U., Gilbert, A. J., Good, D. C., Guliani, S., Halpern, M., Hinshaw, G., Höfer, C., Josephy, A., Kaspi, V. M., Landecker, T. L., Lang, D., Liao, H., Masui, K. W., Mena-Parra, J., Naidu, A., Newburgh, L. B., Ng, C., Patel, C., Pen, U.-L., Pinsonneault-Marotte, T., Pleunis, Z., Ravandi, M. Rafiei, Ransom, S. M., Renard, A., Scholz, P., Sigurdson, K., Siegel, S. R., Smith, K. M., Stairs, I. H., Tendulkar, S. P., Vanderlinde, K., Wiebe, D. V.
Format: Artikel
Sprache:eng
Schlagworte:
Astrophysics
Field of view
Hydrogen
instrumentation: interferometers
Mapping
methods: observational
Normalizing
Parabolic bodies
Radio bursts
radio continuum: general
Radio telescopes
Real time
Reflectors
techniques: interferometric
telescopes
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Zusammenfassung:The Canadian Hydrogen Intensity Mapping Experiment (CHIME) is a novel transit radio telescope operating across the 400-800 MHz band. CHIME is composed of four 20 m × 100 m semicylindrical paraboloid reflectors, each of which has 256 dual-polarization feeds suspended along its axis, giving it a 200 deg2 field of view. This, combined with wide bandwidth, high sensitivity, and a powerful correlator, makes CHIME an excellent instrument for the detection of fast radio bursts (FRBs). The CHIME Fast Radio Burst Project (CHIME/FRB) will search beam-formed, high time and frequency resolution data in real time for FRBs in the CHIME field of view. Here we describe the CHIME/FRB back end, including the real-time FRB search and detection software pipeline, as well as the planned offline analyses. We estimate a CHIME/FRB detection rate of 2-42 FRBs sky-1 day-1 normalizing to the rate estimated at 1.4 GHz by Vander Wiel et al. Likely science outcomes of CHIME/FRB are also discussed. CHIME/FRB is currently operational in a commissioning phase, with science operations expected to commence in the latter half of 2018.
ISSN:0004-637X
1538-4357
DOI:10.3847/1538-4357/aad188