269 citations · 2.2k across the 103 of their papers we have counts for
13 papers · 1 filter
Exploring the Dark Matter Disc Model in Dwarf Galaxies: Insights from the LITTLE THINGS Sample
Francesco Sylos Labini, Roberto Capuzzo-Dolcetta, Giordano De Marzo +1
We conducted an analysis of the velocity field of dwarf galaxies in the LITTLE THINGS sample, focusing on deriving 2D velocity maps that encompass both the transverse and radial ve…
The Tully-Fisher relation and the Bosma effect
Francesco Sylos Labini, Giordano De Marzo, Matteo Straccamore +1
We show that the rotation curves of 16 nearby disc galaxies in the THINGS sample and the Milky Way can be described by the NFW halo model and by the Bosma effect at approximately t…
Mapping non-axisymmetric velocity fields of external galaxies
Francesco Sylos Labini, Matteo Straccamore, Giordano De Marzo +1
Disk galaxies are typically in a stable configuration where matter moves in almost closed circular orbits. However, non-circular motions caused by distortions, warps, lopsidedness,…
Mass models of the Milky Way and estimation of its mass from the GAIA DR3 data-set
Francesco Sylos Labini, Zofia Chrobakova, Roberto Capuzzo-Dolcetta +1
We use data from the Gaia DR3 dataset to estimate the mass of the Milky Way (MW) by analyzing the rotation curve in the range of distances 5 kpc to 28 kpc. We consider three mass m…
Gaia-DR2 extended kinematical maps. Part III: Rotation curves analysis, dark matter, and Modified Newtonian dynamics tests
Ž. Chrobáková, M. López-Corredoira, F. Sylos Labini +2
Recent statistical deconvolution methods have produced extended kinematical maps in a range of heliocentric distances that are a factor of two to three larger than those analysed i…
Gaia-DR2 extended kinematical maps. Part II: Dynamics in the Galactic disk explaining radial and vertical velocities
M. Lopez-Corredoira, F. Garzon, H. -F. Wang +5
Context: In our Paper I, by using statistical deconvolution methods, extended kinematics maps of Gaia-DR2 data have been produced in a range of heliocentric distances that are a fa…
Radial velocities in the outermost disk toward the anticenter
M. Lopez-Corredoira, F. Sylos Labini, P. M. W. Kalberla +1
We measure the mean Galactocentric radial component of the velocity of stars () in the disk at 8 kpc kpc in the direction of the anticenter. For this, we use the Apache…
Nonaxisymmetric models of galaxy velocity maps
Francesco Sylos Labini, David Benhaiem, Sebastien Comeron +1
Galaxy velocity maps often show the typical pattern of a rotating disk, consistent with the dynamical model where emitters rotate in circular orbits around the galactic center. The…
Gaia-DR2 extended kinematical maps. Part I: Method and application
M. Lopez-Corredoira, F. Sylos Labini
CONTEXT. The Gaia Collaboration has used Gaia-DR2 sources with six-dimensional (6D) phase space information to derive kinematical maps within 5 kpc of the Sun, which is a reachable…
Formation of satellites from cold collapse
David Benhaiem, Francesco Sylos Labini
We study the collapse of an isolated, initially cold, irregular (but almost spherical) and (slightly) inhomogeneous cloud of self-gravitating particles. The cloud is driven towards…
Angular momentum generation in cold gravitational collapse
D. Benhaiem, M. Joyce, F. Sylos Labini +1
During the violent relaxation of a self-gravitating system a significant fraction of its mass may be ejected. If the time varying gravitational field also breaks spherical symmetry…
Violent relaxation of ellipsoidal clouds
David Benhaiem, Francesco Sylos Labini
An isolated, initially cold and ellipsoidal cloud of self-gravitating particles represents a relatively simple system to study the effects of the deviations from spherical symmetry…
On the generation of triaxiality in the collapse of cold spherical self-gravitating systems
Francesco Sylos Labini, David Benhaiem, Michael Joyce
Initially cold and spherically symmetric self-gravitating systems may give rise to a virial equilibrium state which is far from spherically symmetric, and typically triaxial. We fo…