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350 results on '"Prieto, Eric"'

303. Time, the City, and the Literary Imagination

Author

Evans, Anne-Marie, Kramer, Kaley, Ameel, Lieven, Series Editor, Finch, Jason, Series Editor, Prieto, Eric, Series Editor, Salmela, Markku, Series Editor, Evans, Anne-Marie, editor, and Kramer, Kaley, editor

Published
2021
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330. Introduction: Irish Urban Fictions

Author

Beville, Maria, Flynn, Deirdre, Ameel, Lieven, Series Editor, Finch, Jason, Series Editor, Prieto, Eric, Series Editor, Salmela, Markku, Series Editor, Beville, Maria, editor, and Flynn, Deirdre, editor

Published
2018
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342. What Is There to Say?

Author

Prieto, Eric

Subjects
SPEECH, NONFICTION
Abstract

The article reviews the book "What Is There to Say?" by Ann Smock.

Published
2005
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343. NISP FM TV3 Test Specifications

Author

FRANCESCHI, ENRICO, ITA, FRA, DEU, Ealet, Anne, Jahnke, Knud, Barbier, Remi, Valenziano, Luca, Dusini, Stefano, Prieto, Eric, and Maciaszek, Thierry

Abstract

This document describes the specifications of the thermal vacuum test called NISP FM TV 3. This test comes after NISP EM and NISP FM TV1/2 tests. NISP FM TV1 test was dedicated to the final characterization of the 16 flight SCS triplet. NISP FM TV2 test was dedicated to first verification of the NISP optical performances and procedure debugging to prepare the NISP FM TV3 performance and calibration test. The NISP FM TV3 is the formal NISP performance and calibration ground test.

Published
2020

344. NISP PFM ABCL

Author

Ducret, Franck, AURICCHIO, NATALIA, ITA, FRA, Prieto Eric, and Maciaszek, Thierry

Published
2020

345. CRAL activities on advanced image slicers: Optical design, manufacturing, assembly, integration and testing

Author

Laurent, Florence, Hénault, François, Ferruit, Pierre, Prieto, Eric, Robert, Daniel, Renault, Edgard, Dubois, Jean-Pierre, and Bacon, Roland

Subjects
*RESEARCH, *SPECTRUM analysis, *ASTRONOMICAL instruments, *SPACE telescopes, *WAVELENGTHS
Abstract

Abstract: A research and development activity on image slicer systems for integral field spectroscopy has grown in the last years. It allows the simultaneous observation on the same detector matrix of two-dimensional sky maps and a spectral decomposition of light reducing the observation times. Today, image slicers lead to possible applications on future instrumentation for ground-based and space telescopes, covering a spectral domain ranging from blue to mid-IR wavelengths. Since 2001, the Centre de Recherche Astronomique de Lyon has designed, manufactured, integrated and tested three different prototypes using advanced image slicers. [Copyright &y& Elsevier]

Published
2006
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346. General integrated field spectrograph simulation

Author

Tilquin, André, Bonissent, Alain, Aumeunier, Marie Hélène, Prieto, Eric, Ealet, Anne, Gerdes, David, and Macaire, Charles

Subjects
*SIMULATION methods & models, *SPECTROGRAPHS, *SPECTRUM analysis, *ASTRONOMICAL instruments, *SPECTROSCOPE
Abstract

Abstract: A general simulation of IFU and grism based slitless spectrograph is presented. Preliminary spectrum extraction is described. [Copyright &y& Elsevier]

Published
2006
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347. Euclid Near Infrared Spectrometer and Photometer instrument concept and first test results obtained for different breadboards models at the end of phase C

Author

S. Ventura, Eric Prieto, Cédric Thizy, Florent Beaumont, Jean-Christophe Salvignol, René J. Laureijs, Warren Holmes, A. N. Sørensen, Carlotta Bonoli, Maurizio Spurio, Augustyn Waczynski, Jérôme Amiaux, J. F. Macías-Pérez, P. Sanchez, G. Sirri, Favio Bortoletto, Francesca Sortino, Giuseppe D. Racca, Natalia Auricchio, Doriane Dormoy, Paolo Strada, Ricard Casas, Corinne Toulouse-Aastrup, David Lizán, Maurizio D'Alessandro, David Le Mignant, C. Rosset, S. Vives, Anne Bonnefoi, L. Stanco, J. Garcia, M. Tenti, Jean-Luc Gimenez, N. Mauri, Frank Grupp, F. Fornari, Rafael Toledo-Moreo, Michael Seiffert, A. Caillat, Felix Hormuth, Allan Hornstrup, Annarita Margiotta, Tony Pamplona, Gian Paolo Guizzo, Leonardo Corcione, Michel Berthé, Riccardo Travaglini, Anne Costille, Niels Christian Jessen, L. Pasqualini, Luca Valenziano, F. Laudisio, L. Patrizii, Gianluca Morgante, Cristobal Padilla, S. Dusini, Philippe Laurent, A. Secroun, Ivan Lloro, Anne Ealet, Thierry Maciaszek, M. Trifoglio, G. Seidel, Yannick Mellier, Ulf E. Israelsson, A. Balestra, Adriano De Rosa, E. Medinaceli, M. Carle, Sylvain Ferriol, Chiara Sirignano, Jaime Gomez, Michael I. Andersen, Knud Jahnke, Christophe Fabron, R. Farinelli, Emmanuel Grassi, F. Giacomini, B. Foulon, Remi Barbier, Jean Christophe Barrière, J. J. Díaz, Mathieu Niclas, P. B. Lilje, Sebastiano Ligori, F. Dal Corso, Peter Viggo Jakobsen, Carlos Colodro-Conde, Franck Ducret, J. C. Clemens, E. Franceschi, Mikel Lamensans, W. Gillard, Tobias Boenke, Tommaso Chiarusi, William Bon, B. Serra, Stefanie Wachter, Laurent Martin, C. Rossin, Aurélien Febvre, E. Borsato, Carolin Wimmer, B. Kubik, Centre National d’Études Spatiales [Paris] (CNES), Centre de Physique des Particules de Marseille (CPPM), Aix Marseille Université (AMU)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire d'Astrophysique de Marseille (LAM), Aix Marseille Université (AMU)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS), Institut de Physique Nucléaire de Lyon (IPNL), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Institut d'Astrophysique de Paris (IAP), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS), AstroParticule et Cosmologie (APC (UMR_7164)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique Subatomique et de Cosmologie (LPSC), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019]), EUCLID, Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Aix Marseille Université (AMU), Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Aix Marseille Université (AMU)-Centre National d'Études Spatiales [Toulouse] (CNES), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Observatoire de Paris, PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA), Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Pierre et Marie Curie - Paris 6 (UPMC), Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), MacEwen, Howard A., G. Fazio, Giovanni, Lystrup, Makenzie, Maciaszek, Thierry, Ealet, Anne, Jahnke, Knud, Prieto, Eric, Barbier, Rémi, Mellier, Yannick, Beaumont, Florent, Bon, William, Bonefoi, Anne, Carle, Michael, Caillat, Amandine, Costille, Anne, Dormoy, Doriane, Ducret, Franck, Fabron, Christophe, Febvre, Aurélien, Foulon, Benjamin, Garcia, Jose, Gimenez, Jean-Luc, Grassi, Emmanuel, Laurent, Philippe, Mignant, David Le, Martin, Laurent, Rossin, Christelle, Pamplona, Tony, Sanchez, Patrice, Vives, Sebastien, Clémens, Jean Claude, Gillard, William, Niclas, Mathieu, Secroun, Aurélia, Serra, Benoit, Kubik, Bogna, Ferriol, Sylvain, Amiaux, Jérome, Barrière, Jean Christophe, Berthe, Michel, Rosset, Cyrille, Macias-Perez, Juan Francisco, Auricchio, Natalia, De Rosa, Adriano, Franceschi, Enrico, Guizzo, Gian Paolo, Morgante, Gianluca, Sortino, Francesca, Trifoglio, Massimo, Valenziano, Luca, Patrizii, Laura, Chiarusi, T., Fornari, F., Giacomini, F., Margiotta, A., Mauri, N., Pasqualini, L., Sirri, G., Spurio, M., Tenti, M., Travaglini, R., Dusini, Stefano, Dal Corso, F., Laudisio, F., Sirignano, C., Stanco, L., Ventura, S., Borsato, Enrico, Bonoli, Carlotta, Bortoletto, Favio, Balestra, Andrea, D'Alessandro, Maurizio, Celi, Eduardo Medina, Farinelli, Ruben, Corcione, Leonardo, Ligori, Sebastiano, Grupp, Frank, Wimmer, Carolin, Hormuth, Felix, Seidel, Gregor, Wachter, Stefanie, Padilla, Cristobal, Lamensans, Mikel, Casas, Ricard, Lloro, Ivan, Toledo-Moreo, Rafael, Gomez, Jaime, Colodro-Conde, Carlo, Lizán, David, Diaz, Jose Javier, Lilje, Per B., Toulouse-Aastrup, Corinne, Andersen, Michael I., Sørensen, Anton N., Jakobsen, Peter, Hornstrup, Allan, Jessen, Niels-Christian, Thizy, Cédric, Holmes, Warren, Israelsson, Ulf, Seiffert, Michael, Waczynski, Augustyn, Laureijs, René J., Racca, Giuseppe, Salvignol, Jean-Christophe, Boenke, Tobia, and Strada, Paolo

Subjects
Cosmic Vision, [PHYS.ASTR.IM]Physics [physics]/Astrophysics [astro-ph]/Instrumentation and Methods for Astrophysic [astro-ph.IM], Control unit, Condensed Matter Physic, 01 natural sciences, 7. Clean energy, law.invention, Photometry, 010309 optics, Optics, law, 0103 physical sciences, NISP, Electrical and Electronic Engineering, 010303 astronomy & astrophysics, Spectroscopy, ComputingMilieux_MISCELLANEOUS, Physics, Instrument control, Spacecraft, Spectrometer, business.industry, Electronic, Optical and Magnetic Material, Euclid, Computer Science Applications1707 Computer Vision and Pattern Recognition, Instrument, Photometer, Breadboard, Applied Mathematic, Grism, 13. Climate action, Infrared, business
Abstract

The Euclid mission objective is to understand why the expansion of the Universe is accelerating through by mapping the geometry of the dark Universe by investigating the distance-redshift relationship and tracing the evolution of cosmic structures. The Euclid project is part of ESA's Cosmic Vision program with its launch planned for 2020 (ref [1]). The NISP (Near Infrared Spectrometer and Photometer) is one of the two Euclid instruments and is operating in the near-IR spectral region (900- 2000nm) as a photometer and spectrometer. The instrument is composed of: - a cold (135K) optomechanical subsystem consisting of a Silicon carbide structure, an optical assembly (corrector and camera lens), a filter wheel mechanism, a grism wheel mechanism, a calibration unit and a thermal control system - a detection subsystem based on a mosaic of 16 HAWAII2RG cooled to 95K with their front-end readout electronic cooled to 140K, integrated on a mechanical focal plane structure made with molybdenum and aluminum. The detection subsystem is mounted on the optomechanical subsystem structure - a warm electronic subsystem (280K) composed of a data processing / detector control unit and of an instrument control unit that interfaces with the spacecraft via a 1553 bus for command and control and via Spacewire links for science data This presentation describes the architecture of the instrument at the end of the phase C (Detailed Design Review), the expected performance, the technological key challenges and preliminary test results obtained for different NISP subsystem breadboards and for the NISP Structural and Thermal model (STM). © (2016) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only. Copyright (2016) Society of Photo Optical Instrumentation Engineers. One print or electronic copy may be made for personal use only. Systematic reproduction and distribution, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper are prohibited.

Published
2016

348. Developments in high-density Cobra fiber positioners for the Subaru Telescope's Prime Focus Spectrograph

Author

Charles Fisher, Michael Seiffert, Richard S. Ellis, Roger Smith, Richard Dekany, David F. Braun, Joel V. Kaluzny, Navarro, Ramón, Cunningham, Colin R., and Prieto, Eric

Subjects
Optical fiber, Spectrometer, business.industry, Computer science, SCARA, FOS: Physical sciences, Sextant (astronomical), Prime (order theory), law.invention, Optics, Cardinal point, law, Subaru Telescope, business, Focus (optics), Astrophysics - Instrumentation and Methods for Astrophysics, Instrumentation and Methods for Astrophysics (astro-ph.IM), Spectrograph
Abstract

The Prime Focus Spectrograph (PFS) is a fiber fed multi-object spectrometer for the Subaru Telescope that will conduct a variety of targeted surveys for studies of dark energy, galaxy evolution, and galactic archaeology. The key to the instrument is a high density array of fiber positioners placed at the prime focus of the Subaru Telescope. The system, nicknamed "Cobra", will be capable of rapidly reconfiguring the array of 2394 optical fibers to the image positions of astronomical targets in the focal plane with high accuracy. The system uses 2394 individual "SCARA robot" mechanisms that are 7.7mm in diameter and use 2 piezo-electric rotary motors to individually position each of the optical fibers within its patrol region. Testing demonstrates that the Cobra positioner can be moved to within 5{\mu}m of an astronomical target in 6 move iterations with a success rate of 95 per cent. The Cobra system is a key aspect of PFS that will enable its unprecedented combination of high-multiplex factor and observing efficiency on the Subaru telescope. The requirements, design, and prototyping efforts for the fiber positioner system for the PFS are described here as are the plans for modular construction, assembly, integration, functional testing, and performance validation., Comment: 8 pages

Published
2012

349. Extinction controlled adaptive mask coronagraph Lyot and phase mask dual concept for wide extinction area

Author

Frédéric Gonté, Pierre Bourget, Dimitri Mawet, Nicolas Schuhler, Pierre Haguenauer, Julien Girard, Navarro, Ramόn, Cunningham, Colin R., and Prieto, Eric

Subjects
Physics, business.industry, Astrophysics::Instrumentation and Methods for Astrophysics, Phase (waves), Polarization (waves), law.invention, Interferometry, Optics, Amplitude, Achromatic lens, law, Astrophysics::Earth and Planetary Astrophysics, Chromatic scale, business, Adaptive optics, Coronagraph
Abstract

A dual coronagraph based on the Adaptive Mask concept is presented in this paper. A Lyot coronagraph with a variable diameter occulting disk and a nulling stellar coronagraph based on the Adaptive Phase Mask concept using polarization interferometry are presented in this work. Observations on sky and numerical simulations show the usefulness of the proposed method to optimize the nulling efficiency of the coronagraphs. In the case of the phase mask, the active control system will correct for the detrimental effects of image instabilities on the destructive interference (low-order aberrations such as tip-tilt and focus). The phase mask adaptability both in size, phase and amplitude also compensate for manufacturing errors of the mask itself, and potentially for chromatic effects. Liquid-crystal properties are used to provide variable transmission of an annulus around the phase mask, but also to achieve the achromatic π phase shift in the core of the PSF by rotating the polarization by 180°.A compressed mercury (Hg) drop is used as an occulting disk for the Lyot mask, its size control offers an adaptation to the seeing conditions and provides an optimization of the Tip-tilt correction.

Published
2012

350. An imaging displacement sensor with nanometer accuracy

Author

David C. Redding, David P. Woody, Navarro, Ramón, Cunningham, Colin, and Prieto, Eric

Subjects
Physics, business.industry, Linearity, Collimator, Chip, Displacement (vector), law.invention, Metrology, Optics, law, Six degrees of freedom, business, Beam (structure), Light-emitting diode
Abstract

An imaging displacement sensor (IDS) has been developed that can measure the displacement with an accuracy of 30 nm in 0.03 s with the precision improving to 1 nm for averaging times of 100 s. The IDS consists simply of a light emitting diode (LED) pinhole collimator and a charge-coupled device (CCD) camera chip. The position accuracy is better than 0.05% over the few mm CCD size with deviation from linearity

Published
2012

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