Figure 45 from Skynet Algorithm for Single-dish Radio Mapping. I. Contaminant-cleaning, Mapping, and Photometering Small-scale Structures

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Skynet Algorithm for Single-dish Radio Mapping. I. Contaminant-cleaning, Mapping, and Photometering Small-scale Structures

Authors: J. R. Martin, D. E. Reichart, D. A. Dutton, M. P. Maples, T. A. Berger, F. D. Ghigo, J. B. Haislip, O. H. Shaban, A. S. Trotter, L. M. Barnes, M. L. Paggen, R. L. Gao, C. P. Salemi, G. I. Langston, S. Bussa, J. A. Duncan, S. White, S. A. Heatherly, J. B. Karlik, E. M. Johnson, J. E. Reichart, A. C. Foster, V. V. Kouprianov, S. Mazlin, and J. Harvey

2019 The Astrophysical Journal Supplement Series 240 12.

Provider: AAS Journals

Caption: Figure 45.

Left panel of Figure 43, instead processed without the noise-level prior (see footnote 27), and visualized with square-root scaling on the left, and with regular, linear scaling on the right. The surface model undershoots at the base of this high-S/N, well-focused, point source, especially where the first Airy ring has been partially eliminated by the RFI-subtraction algorithm. Consequently, the noise-level prior is normally included (Figure 43). Note, however, that even without the noise-level prior, this is a small effect and is only barely noticeable when visualized on regular, linear scaling (right).

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