Showing astro-phShow all
3 papers · 1 filter
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-ph2001
Is the old nova RW UMi (1956) an intermediate polar?
A. Bianchini, C. Tappert, H. Osborne +2
From photometric observations of the old nova RW UMi (1956) we have discovered the presence of five sub-orbital periodicities. The longest period, P1 = 54.4 min, always observed, c…
astro-ph1999
Optical observations of the black hole candidate XTE J1550-564 during the Sep/Oct 1998 outburst
C. Sanchez-Fernandez, A. J. Castro-Tirado, H. W. Duerbeck +11
We report here optical observations during the September/October 1998 outburst of the black hole candidate XTE J1550-564. CCD photometry was obtained for the optical counterpart wi…