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- W4387218886 abstract "The knowledge of the positions of the corotation resonance in spiral arms is a key way to estimate their pattern speed, which is a fundamental parameter determining the galaxy dynamics. Various methods for its estimation have been developed, but they all demonstrate certain limitations and a lack of agreement with each other. Here, we present a new method for estimating the corotation radius. This method takes into account the shape of the profile across the arm and its width and, thus, only photometric data is needed. The significance of the method is that it can potentially be used for the farthest galaxies with measurable spiral arms. We apply it to a sample of local galaxies from Savchenko et al. and compare the obtained corotation radii with those previously measured in the literature by other methods. Our results are in good agreement with the literature. We also apply the new method to distant galaxies from the COSMOS field. For the first time, corotation locations for galaxies with photometric redshifts up to $zsim0.9$ are measured." @default.
- W4387218886 created "2023-10-01" @default.
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- W4387218886 date "2023-09-28" @default.
- W4387218886 modified "2023-10-03" @default.
- W4387218886 title "A new, purely photometric method for determination of resonance locations in spiral galaxies" @default.
- W4387218886 doi "https://doi.org/10.48550/arxiv.2309.16232" @default.
- W4387218886 hasPublicationYear "2023" @default.
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