We present deep images in H alpha +[NII] and [OIII] lambda 5007 of the region around NGC 7027 obtained with the wide field camera (WFC) at the Isaac Newton...
Defining requirements and identifying relevant technologies in astrophotonics
Astrophotonics offers a solution to some of the problems of building instruments for the next generation of telescopes through the use of photonic devices to...
Definition of a Distribution Format for X-ray Data
X-ray data from the ROSAT satellite will be distributed to Guest Observers on FITS tapes. The precise contents and format of the tape were chosen bearing the...
Deformable mirror controller for open-loop adaptive optics
A Deformable Mirror Controller (DMC) has been devised to overcome the open-loop nature of Multi Object Adaptive Optics (MOAO), in particular for AO systems with...
Deformable mirrors for the EST testbed: testing and characterization
The European Solar Telescope is a 4-m class solar telescope planned to include a multi-conjugate adaptive optics system (MCAO) for high spatial resolution over...
Deforming the Lie algebra of vector fields on $S^1$ inside the Lie algebra of pseudodifferential symbols on $S^1$
We classify nontrivial deformations of the standard embedding of the Lie algebra $Vect(S^1)$ of smooth vector fields on the circle, into the Lie algebra~$PD(S^1...
Deforming the Lie algebra of vector fields on $S^1$ inside the Poisson algebra on $dot T^*S^1$
We study deformations of the standard embedding of the Lie algebra $Vect(S^1)$ of smooth vector fields on the circle, into the Lie algebra of functions on the...