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arXiv · 1504.05903

Modeling vertical structure in circular velocity of spiral galaxy NGC 4244

Joanna Jałocha·Łukasz Bratek·Szymon Sikora·Marek Kutschera
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Abstract

We study the vertical gradient in azimuthal velocity of spiral galaxy NGC 4244 in a thin disk model. With surface density accounting for the rotation curve, we model the gradient properties in the approximation of quasi-circular orbits and find the predictions to be consistent with the gradient properties inferred from measurements. This consistency may suggest that the mass distribution in this galaxy is flattened.

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Joanna Jałocha, Łukasz Bratek, Szymon Sikora, Marek Kutschera. 2015-04-22. Modeling vertical structure in circular velocity of spiral galaxy NGC 4244. https://doi.org/10.1093/mnras%2Fstv1163

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