Browsing by Author "Taylor, A.R."

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    Development and application of an HDF5 schema for SKA-scale image cube visualization
    (Elsevier, 2020) Taylor, A.R.; Comrie, A.; Pińska, A.
    In this paper, we describe an HDF5 schema created to support the efficient visualization of the large image cubes that will be produced by SKA Phase 1 and precursor radio telescopes. We demonstrate how the “HDF5-IDIA” schema’s features can improve the performance of visualization software, using both low-level metrics and real-world tests of the schema’s implementation in CARTA, an image viewer that is being developed to replace the existing CyberSKA and CASA viewers.
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    Discovery of a filamentary synchrotron structure connected to the coherent magnetic field in the outer galaxy
    (The Astrophysical Journal, 2023) Taylor, A.R.; West, J.L.; Campbell, J.L.; Bhaura, P
    Using data from the Galactic Arecibo L-band Feed Array Continuum Transit Survey, we report the discovery of two previously unidentified, very compressed, thin, and straight polarized filaments approximately centered at Galactic coordinates, (l, b) = (182°. 5, − 4°. 0), which we call G182.5–4.0. Using data from the Isaac Newton Telescope Galactic Plane Survey, we also find straight, long, and extremely thin Hα filaments coincident with the radio emission. These filaments are positioned in projection at the edge of the Orion-Eridanus superbubble and we find evidence indicating that the filaments align with the coherent magnetic field of the outer Galaxy. We find a lower limit on the total radio flux at 1.4 GHz to be 0.7 ± 0.3 Jy with an average linearly polarized fraction of 40 %20 30 - +. We consider various scenarios that could explain the origin of these filaments, including a shell type supernova remnant (SNR), a bow shock nebula associated with a pulsar, or relic fragments from one or more supernova explosions in the adjacent superbubble, with a hybrid scenario being most likely.