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The universal rotation curve of dwarf disc galaxies
(2017-01-01)
We use the concept of the spiral rotation curves universality to investigate the luminous and dark matter properties of the dwarf disc galaxies in the local volume (size ~11 Mpc). Our sample includes 36 objects with rotation ...
Accretion of galaxy groups into galaxy clusters
(Wiley Blackwell Publishing, Inc, 2020-11)
We study the role of group infall in the assembly and dynamics of galaxy clusters in ΛCDM. We select 10 clusters with virial mass M200 ∼1014 M from the cosmological hydrodynamical simulation Illustris and follow their ...
Ionized gas kinematics and luminosity profiles of Low-z Lyman Alpha Blobs
(Cambridge University Press, 2021-03)
This work is focused on the characterization of the Seyfert-2 galaxies hosting very large, ultra-luminous narrow-line regions (NLRs) at redshifts z = 0.2-0.34. With a space density of 4.4 Gcp-3 at z ∼0.3, these "Low Redshift ...
MASS DISTRIBUTION IN HICKSON COMPACT GROUPS OF GALAXIES
(IOP PUBLISHING LTD, 2010)
This study presents the mass distribution for a sample of 18 late-type galaxies in nine Hickson compact groups. We used Ha rotation curves (RCs) from high-resolution two-dimensional velocity fields of Fabry-Perot observations ...
The extended law of star formation: the combined role of gas and stars
(Oxford University Pres, 2017)
We present a model for the origin of the extended law of star formation in which the surface density of star formation (Sigma(SFR)) depends not only on the local surface density of the gas (Sigma(g)) but also on the stellar ...
Probing the 2D kinematic structure of early-type galaxies out to three effective radii
(WILEY-BLACKWELL PUBLISHING, INC, 2009)
We detail an innovative new technique for measuring the two-dimensional (2D) velocity moments (rotation velocity, velocity dispersion and Gauss-Hermite coefficients h(3) and h(4)) of the stellar populations of galaxy haloes ...
The two-component virial theorem and the physical properties of stellar systems
(Univ Chicago PressChicagoEUA, 2000)
Mass density and size estimates for spiral galaxies using general relativity
(Springer, 2017)
Rotation curves of spiral galaxies reveal a physical phenomenon that has been seen to lack a satisfactory scientific explanation: velocities of stars far from the nucleus are high and approximately constant. In the context ...