AMI-CL J0300+2613: A Galactic anomalous-microwave-emission ring masquerading as a galaxy cluster
Monthly Notices of the Royal Astronomical Society
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Perrott, Y. C., Cantwell, T., Carey, S., Elwood, P., Feroz, F., Grainge, K., Green, D., et al. (2018). AMI-CL J0300+2613: A Galactic anomalous-microwave-emission ring masquerading as a galaxy cluster. Monthly Notices of the Royal Astronomical Society, 473 (1), 1157-1167. https://doi.org/10.1093/mnras/stx2421
The Arcminute Microkelvin Imager (AMI) carried out a blind survey for galaxy clusters via their Sunyaev–Zel’dovich e ect decrements between 2008 and 2011. The first detection, known as AMI-CL J0300+2613, has been reobserved with AMI equipped with a new digital correlator with high dynamic range. The combination of the new AMI data and more recent high-resolution sub-mm and infra-red maps now shows the feature in fact to be a ring of positive dust-correlated Galactic emission, which is likely to be anomalous microwave emission (AME). If so, this is the first completely blind detection of AME at arcminute scales.
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External DOI: https://doi.org/10.1093/mnras/stx2421
This record's URL: https://www.repository.cam.ac.uk/handle/1810/275484