The forbidden N II/H-alpha ratio in NGC 6888
The four- and five-band multispectral scanners for Landsat
The Four-Quadrant Phase Mask Coronagraph. III. Laboratory Performance
The Four-Quadrant Phase Mask Coronagraph. IV. First Light at the Very Large Telescope
The Four-Quadrant Phase-Mask Coronagraph. I. Principle
The Four-Quadrant Phase-Mask Coronagraph. II. Simulations
The four-quadrant phase-mask coronagraph: white light laboratory results with an achromatic device
The Fourier-transform spectrometer as a wide-band wavefront sensor for applications in adaptive optics
The FourStar Infrared Camera
The fractional Brownian motion property of the turbulent refractive index and the Fermat's Extremal Principle
The fractional Brownian motion property of the turbulent refractive within Geometric Optics
The frequency correlation of the scintillations of the focused radiation
The frequency of light propagating in gravitational wave spacetimes
The frequency spectrum of focused broadband pulses of electromagnetic radiation generated by polarization currents with superluminally rotating distribution patterns
The fringe and flexure tracking system for LINC-NIRVANA: basic design and principle of operation
The frustrated Brownian motion of nonlocal solitary waves
The future of high angular resolution x-ray astronomy
The future of space imaging. Report of a community-based study of an advanced camera for the Hubble Space Telescope
The GAIA payload
The Galactic Center Black Hole