A sample of spiral galaxies is examined, applying moments analysis to their broad-band azimuthal profiles, in order to search for evidence of coherent large...
Cold Dark Matter Cusps in Low Surface Brightness Galaxies by Means of Stellar Kinematics
A sample of galaxies characterized by a low surface brightness disk has dynamically studied using, as tracer, the stellar component. The kinematical data, taken...
Collective Normal Modes of Ensembles of Magnetic Tubes: Applications to Coronal Arcades and Multi-Stranded Loops
Using the T-matrix theory, we have performed an analytical study of the collective fast normal modes of an arbitrary system of loops. The obtained results allow...
Colliding galaxies and the rapid assembly of clouds into proto-super star clusters
We present a short summary of several 2D hydrodynamic calculations that suggest that upon the collision of galaxies two physical mechanisms lead to the...
Collisional Enhancement of H I Lines in Ionized Nebulae
Collisional excitation of neutral hydrogen atoms can significantly increase the intensity of Balmer lines with respect to pure recombination. If this effect is...