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Tests of achromatic phase shifters performed on the SYNAPSE test bench: a progress report
Pavel Gabor, Peter A. Schuller, Bruno Chazelas +16
The achromatic phase shifter (APS) is a component of the Bracewell nulling interferometer studied in preparation for future space missions (viz. Darwin/TPF-I) focusing on spectrosc…
SYMPA, a dedicated instrument for Jovian Seismology. II. Real performance and first results
Patrick Gaulme, F. X. Schmider, Jean Gay +7
Context. Due to its great mass and its rapid formation, Jupiter has played a crucial role in shaping the Solar System. The knowledge of its internal structure would strongly constr…
The Achromatic Interfero Coronagraph
Yves Rabbia, Jean Gay, Jean-Pierre Rivet
We report on the Achromatic Interfero Coronagraph, a focal imaging device which aims at rejecting the energy contribution of a point-like source set on-axis, so as to make detectab…
On-sky observations with an achromatic hybrid phase knife coronagraph in the visible
Lyu Abe, Mathilde Beaulieu, Farrokh Vakili +4
CONTEXT: The four-quadrant phase mask stellar coronagraph, introduced by D. Rouan et al., is capable of achieving very high dynamical range imaging and was studied in the context o…