Dynamics of Loop Quantum Gravity and Spin Foam Models in Three Dimensions
We present a rigorous regularization of Rovellis's generalized projection operator in canonical 2+1 gravity. This work establishes a clear-cut connection...
Dynamics of the Collimated Outflows of the PPN Hen 3-1475
Hen 3-1475 (IRAS 17423-1755) has recently been identified via ground-based and HST optical images as a bipolar proto-planetary nebula displaying a remarkable...
Dynamics of the Radio halo Cluster A2744: An Optical Study
We present the results of a dynamical analysis of the radio-halo cluster A2744 based on optical data. We find that this cluster is in an advanced merging phase...
The site selection for the future European Large Telescope (E-ELT) is a key issue within the European proposal funded by the EC, within the "ELT Design Study"...
The neutron star X-ray binary Aql X-1 shows quasi-periodic outbursts about once a year. These active states are relatively well covered in optical/infrared and...
Early APOGEE Chemical Results for the Milky Way Bulge
The stellar content of the bulge of the Galaxy is not well characterized yet, in part due to the high extinction and, therefore, limited access at optical...