Modeling vertical structure in circular velocity of spiral galaxy NGC 4244

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.

5 pages, 6 figures

References in corpus (5)

• The cold gaseous halo of NGC 891
• The Milky Way Rotation Curve and its Vertical Derivatives Inside the Solar Circle
• Is dark matter present in NGC4736? An iterative spectral method for finding mass distribution in spiral galaxies
• Constraining the vertical structure of the Milky Way rotation by microlensing in a finite-width global disk model
• Vertical gradients of azimuthal velocity in a global thin disk model of spiral galaxies NGC 2403, NGC 4559, NGC 4302 and NGC 5775