52 citations · 213 across the 31 of their papers we have counts for
12 papers · 1 filter
Magnetic flux density from the relative circular motion of stars and partially ionized gas in the Galaxy mid-plane vicinity
Joanna Jałocha, Łukasz Bratek, Jan Pękala +2
Observations suggest a slower stellar rotation relative to gas rotation in the outer part of the Milky Way Galaxy. This difference could be attributed to an interaction with the in…
Velocity dispersion as a factor modifying the distribution of mass in disk-like galaxies -- an example of galaxy UGC 6446
Szymon Sikora, Łukasz Bratek, Joanna Jałocha +1
Within the disk model framework used to approximately describe flattened galaxies, we develop an iterative method of determining column mass density from rotation curve supplemente…
Modeling vertical structure in circular velocity of spiral galaxy NGC 4244
Joanna Jałocha, Łukasz Bratek, Szymon Sikora +1
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 p…
Velocity-density twin transforms in thin disk model
Łukasz Bratek, Szymon Sikora, Joanna Jałocha +1
Ring mass density and the corresponding circular velocity in thin disk model are known to be integral transforms of one another. But it may be less familiar that the transforms can…
Motion of halo compact objects in the gravitational potential of a low-mass model of the Galaxy
Szymon Sikora, Łukasz Bratek, Joanna Jałocha +1
Recently, we determined a lower bound for the Milky Way mass in a point mass approximation. This result was obtained for most general spherically symmetric phase-space distribution…
Constraining the vertical structure of the Milky Way rotation by microlensing in a finite-width global disk model
Joanna Jałocha, Szymon Sikora, Łukasz Bratek +1
In this paper we model the vertical structure of mass distribution of the Milky Way galaxy in the framework of a finite-width global disk model. Assuming the Galactic rotation curv…