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astro-ph2005
FrogEye, the Quantum Coronagraphic mask. The Photon Orbital Angular Momentum and its applications to Astronomy
F. Tamburini, G. Umbriaco, G. Anzolin +2
We propose to realize an optical device based on the properties of photon orbital angular momentum (POAM) to detect the presence of closeby faint companions in double systems using…
astro-ph1995
The ESO Key-Programme ``A Homogeneous Bright QSO Survey'' - I The Methods and the ``Deep'' Fields
S. Cristiani, F. La Franca, P. Andreani +13
This is the first paper in a series aimed at defining a statistically significant sample of QSOs in the range and . The selection is carried out u…
astro-ph1995
THE CLUSTERING OF QUASARS
P. Andreani, S. Cristiani, F. La Franca
We have investigated the spatial distribution of quasars and its relationship with redshift by using the two-point correlation function, the variance of cell counts and the conditi…