Browsing Faculty of Natural Sciences by Author "Irfan, Melis O"
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Cleaning foregrounds from single-dish 21 cm intensity maps with Kernel principal component analysis
Irfan, Melis O; Bull, Phillip (Oxford University Press, 2021)he high dynamic range between contaminating foreground emission and the fluctuating 21 cm brightness temperature field is one of the most problematic characteristics of 21 cm intensity mapping data. While these components ... -
Simulating a full-sky high resolution Galactic synchrotron spectral index map using neural networks
Irfan, Melis O (Monthly Notices of the Royal Astronomical Society, 2023)We present a model for the full-sky diffuse Galactic synchrotron spectral index with an appropriate level of spatial structure for a resolution of 56 arcmin (to match the resolution of the Haslam 408 MHz data). Observational ...