Eastwood, Michael W. and Hallinan, Gregg (2017) Full-Sky Maps of the VHF Radio Sky with the Owens Valley Radio Observatory Long Wavelength Array. In: Peering towards Cosmic Dawn. Proceedings IAU Symposium. No.333. Cambridge University Press , Cambridge, pp. 110-113. ISBN 9781107192461. https://resolver.caltech.edu/CaltechAUTHORS:20190124-105501338
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Abstract
21-cm cosmology is a powerful new probe of the intergalactic medium at redshifts 20 ≳ z ≳ 6 corresponding to the Cosmic Dawn and Epoch of Reionization. Current observations of the highly-redshifted 21-cm transition are limited by the dynamic range they can achieve against foreground sources of low-frequency (<200 MHz) of radio emission. We used the Owens Valley Radio Observatory Long Wavelength Array (OVRO-LWA) to generate a series of new modern high-fidelity sky maps that capture emission on angular scales ranging from tens of degrees to ∼15 arcmin, and frequencies between 36 and 73 MHz. These sky maps were generated from the application of Tikhonov-regularized m-mode analysis imaging, which is a new interferometric imaging technique that is uniquely suited for low-frequency, wide-field, drift-scanning interferometers.
Item Type: | Book Section | ||||||
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Additional Information: | © 2018 International Astronomical Union. | ||||||
Subject Keywords: | cosmology: early universe, ISM: HII regions, ISM: supernova remnants, techniques: interferometric, radio continuum: general | ||||||
Series Name: | Proceedings IAU Symposium | ||||||
Issue or Number: | 333 | ||||||
DOI: | 10.1017/S1743921317011231 | ||||||
Record Number: | CaltechAUTHORS:20190124-105501338 | ||||||
Persistent URL: | https://resolver.caltech.edu/CaltechAUTHORS:20190124-105501338 | ||||||
Official Citation: | Eastwood, M., & Hallinan, G. (2017). Full-Sky Maps of the VHF Radio Sky with the Owens Valley Radio Observatory Long Wavelength Array. Proceedings of the International Astronomical Union, 12(S333), 110-113. doi:10.1017/S1743921317011231 | ||||||
Usage Policy: | No commercial reproduction, distribution, display or performance rights in this work are provided. | ||||||
ID Code: | 92450 | ||||||
Collection: | CaltechAUTHORS | ||||||
Deposited By: | Tony Diaz | ||||||
Deposited On: | 24 Jan 2019 20:10 | ||||||
Last Modified: | 16 Nov 2021 03:50 |
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