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14 papers · 2 filters
Application of a damped Locally Optimized Combination of Images method to the spectral characterization of faint companions using an Integral Field Spectrograph
Laurent Pueyo, Justin R. Crepp, Gautam Vasisht +14
High-contrast imaging instruments are now being equipped with integral field spectrographs (IFS) to facilitate the detection and characterization of faint substellar companions. Al…
Design of PIAA coronagraphs over square apertures
Laurent Pueyo, N. Jeremy Kasdin, Alexis Carlotti +1
The purpose of this paper is to present the results of a theoretical study pertaining to the feasibility of PIAA units using Deformable Mirrors. We begin by reviewing the general d…
Improved achromatization of phase mask coronagraphs using colored apodization
M. N'Diaye, K. Dohlen, S. Cuevas +3
For direct imaging of exoplanets, a stellar coronagraph helps to remove the image of an observed bright star by attenuating the diffraction effects caused by the telescope aperture…
Ubercalibration of the Deep Lens Survey
D. Wittman, R. Ryan, P. Thorman
We describe the internal photometric calibration of the Deep Lens Survey, which consists of five widely separated fields observed by two different observatories. Adopting the globa…
X-shooter, the new wide band intermediate resolution spectrograph at the ESO Very Large Telescope
Joel Vernet, H. Dekker, S. D'Odorico +87
X-shooter is the first 2nd generation instrument of the ESO Very Large Telescope(VLT). It is a very efficient, single-target, intermediate-resolution spectrograph that was installe…
The Cosmic Origins Spectrograph
James C. Green, Cynthia S. Froning, Steve Osterman +23
The Cosmic Origins Spectrograph (COS) is a moderate-resolution spectrograph with unprecedented sensitivity that was installed into the Hubble Space Telescope (HST) in May 2009, dur…