Letteratura scientifica selezionata sul tema "Coronagraphie"
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Articoli di riviste sul tema "Coronagraphie":
Yudaev, Andrey, Alexander Kiselev, Inna Shashkova, Alexander Tavrov, Alexander Lipatov e Oleg Korablev. "Wavefront Sensing by a Common-Path Interferometer for Wavefront Correction in Phase and Amplitude by a Liquid Crystal Spatial Light Modulator Aiming the Exoplanet Direct Imaging". Photonics 10, n. 3 (16 marzo 2023): 320. http://dx.doi.org/10.3390/photonics10030320.
Leboulleux, Lucie, Alexis Carlotti e Mamadou N’Diaye. "Redundant apodization for direct imaging of exoplanets". Astronomy & Astrophysics 659 (marzo 2022): A143. http://dx.doi.org/10.1051/0004-6361/202142410.
Tokunaga, A. T., C. Ftaclas, J. R. Kuhn e P. Baudoz. "High Dynamic Range and the Search for Planets". Symposium - International Astronomical Union 211 (2003): 487–96. http://dx.doi.org/10.1017/s0074180900211200.
Itoh, Satoshi, e Taro Matsuo. "A Coronagraph with a Sub-λ/D Inner Working Angle and a Moderate Spectral Bandwidth". Astronomical Journal 163, n. 6 (19 maggio 2022): 279. http://dx.doi.org/10.3847/1538-3881/ac658a.
Xin, Yinzi, Laurent Pueyo, Romain Laugier, Leonid Pogorelyuk, Ewan S. Douglas, Benjamin J. S. Pope e Kerri L. Cahoy. "Coronagraphic Data Post-processing Using Projections on Instrumental Modes". Astrophysical Journal 963, n. 2 (1 marzo 2024): 96. http://dx.doi.org/10.3847/1538-4357/ad1879.
Leboulleux, Lucie, Jean-François Sauvage, Rémi Soummer, Thierry Fusco, Laurent Pueyo, Laurent M. Mugnier, Christopher Moriarty, Peter Petrone e Keira Brooks. "Experimental validation of coronagraphic focal-plane wavefront sensing for future segmented space telescopes". Astronomy & Astrophysics 639 (luglio 2020): A70. http://dx.doi.org/10.1051/0004-6361/202037658.
Vigan, A., M. N’Diaye, K. Dohlen, J. F. Sauvage, J. Milli, G. Zins, C. Petit et al. "Calibration of quasi-static aberrations in exoplanet direct-imaging instruments with a Zernike phase-mask sensor". Astronomy & Astrophysics 629 (26 agosto 2019): A11. http://dx.doi.org/10.1051/0004-6361/201935889.
Cagigas, Miguel A., Manuel P. Cagigal, Pedro J. Valle, Vidal F. Canales, Antonio Fuentes e Roberto López. "Planetary system detection by estimating the covariance of coronagraphic lucky images". Monthly Notices of the Royal Astronomical Society 488, n. 3 (15 luglio 2019): 3262–67. http://dx.doi.org/10.1093/mnras/stz1954.
Clampin, Mark, John Krist, David R. Ardila, David A. Golimowski, Holland C. Ford e Garth Illingworth. "ACS Coronagraphic Observations of Optically Thin Debris Disks". Symposium - International Astronomical Union 221 (2004): 449–57. http://dx.doi.org/10.1017/s0074180900241892.
Bos, S. P., D. S. Doelman, J. Lozi, O. Guyon, C. U. Keller, K. L. Miller, N. Jovanovic, F. Martinache e F. Snik. "Focal-plane wavefront sensing with the vector-Apodizing Phase Plate". Astronomy & Astrophysics 632 (26 novembre 2019): A48. http://dx.doi.org/10.1051/0004-6361/201936062.
Tesi sul tema "Coronagraphie":
SCHMITTE, RIVEZ ANNICK. "Interets du doppler des membres inferieurs avant coronagraphie". Reims, 1992. http://www.theses.fr/1992REIMM067.
Alagao, Mary Angelie. "Characterization and optimization of the Evanescent Wave Coronagraph". Electronic Thesis or Diss., Saint-Etienne, 2023. http://www.theses.fr/2023STET0060.
Direct imaging of exoplanets remains challenging due to the high contrast and the small angular separation between the star and the planet. It requires suppressing the blinding glare from the star and ensuring that the planet's faint light is not buried deep in various noises. Successful detection depends on the technological readiness and maturity of techniques and algorithms employed while considering the significant trade-offs on raw contrast, inner working angle, and throughput. One of its key components is the use of coronagraphs – instruments with the sole purpose of blocking/reducing the light from the star. This work presents a new type of Lyot coronagraph, invented by Dr. Yves Rabbia, that relies on the frustrated total internal reflection (FTIR) principle to suppress the starlight. This coronagraph is aptly called the Evanescent Wave Coronagraph (EvWaCo) owing to its nature that its focal plane mask, comprising a lens and a prism, reflects the off-axis source (planet) and transmits the on-axis source (star) by capturing the evanescent waves. This thesis aims to provide the reader with the groundwork that highlights EvWaCo's three main advantages: i) the mask is inherently achromatic, ii) the size of the mask is adjustable by changing the pressure between the lens and the prism, and iii) both the stellar light and the planet light can be collected simultaneously for low-order wavefront sensing, and proper stellar light centering. The performance of EvWaCo is assessed through experiments in a laboratory and then compared to numerical simulations. The experimental results show a raw contrast equal to a few 10-4 at 3 ��/�� over the full I-band (��c = 800 nm, ∆��/�� ≈ 20%) and at 4 ��/�� over the full R-band (��c = 650 nm, ∆��/�� ≈ 23%). The simulations confirm the achromatic rejection capability of EvWaCo as it showed a raw contrast of 10-4 at the same radial distance over both bandpasses. This thesis concludes with the status of its testbed and future perspectives
Chipman, Russell A. "Challenges in coronagraph optical design". SPIE-INT SOC OPTICAL ENGINEERING, 2017. http://hdl.handle.net/10150/627190.
Xin, Yeyuan(Yeyuan Yinzi). "Coronagraphic data post-processing using projections on instrumental modes". Thesis, Massachusetts Institute of Technology, 2020. https://hdl.handle.net/1721.1/127114.
Cataloged from the official PDF of thesis.
Includes bibliographical references (pages 71-76).
High contrast astronomy has yielded the direct observations of over a dozen exoplanets and a multitude of brown dwarfs and circumstellar disks. Despite advances in coronagraphy and wavefront control, high contrast observations are still plagued by residual wavefront aberrations. Post-processing techniques can provide an additional boost in separating residual aberrations from an astrophysical signal. This work explores using a coronagraph instrument model to guide post-processing. We consider the propagation of signals and wavefront error through a coronagraphic instrument, and approach the post-processing problem using "robust observables." We model and approximate the instrument response function of a classical Lyot coronagraph (CLC) and find from it a projection that removes the dominant error modes.
We use this projection to post-process synthetically generated data, and assess the performance of the new model-based post-processing approach compared to using the raw intensity data by calculating their respective flux ratio detection limits. We extend our analysis to include the presence of a dark hole using a simulation of the CLC on the High-contrast imager for complex aperture telescopes (HiCAT) testbed. We find that for non-time-correlated wavefront errors, using the robust observables modestly increases our sensitivity to the signal of a binary companion for most of the range of separations over which our treatment is valid, for example, by up to 50% at 7.5[lambda]/D. For time-correlated wavefront errors, the results vary depending on the test statistic used and degree of correlation. The modest improvement using robust observables with non-time-correlated errors is shown to extend to a CLC with a dark hole created by the stroke minimization algorithm.
Future work exploring the inclusion of statistical whitening processes will allow for a more complete characterization of the robust observables with time-correlated noise. We discuss the dimensionality of coronagraph self-calibration problem and motivate future directions in the joint study of coronagraphy and post-processing.
by Yeyuan (Yinzi) Xin.
S.M.
S.M. Massachusetts Institute of Technology, Department of Aeronautics and Astronautics
Pueyo, Laurent, Neil Zimmerman, Matthew Bolcar, Tyler Groff, Christopher Stark, Garreth Ruane, Jeffrey Jewell et al. "The LUVOIR architecture ``A'' coronagraph instrument". SPIE-INT SOC OPTICAL ENGINEERING, 2017. http://hdl.handle.net/10150/626292.
Thompson, Samantha Jayne. "OSCA, an Optimised Stellar Coronagraph for Adaptive optics". Thesis, University College London (University of London), 2005. http://discovery.ucl.ac.uk/1338360/.
Chipman, Russell A. "Image formation in coronagraphs due to mirror polarization aberrations". SPIE-INT SOC OPTICAL ENGINEERING, 2017. http://hdl.handle.net/10150/627180.
Mawet, D., P. Wizinowich, R. Dekany, M. Chun, D. Hall, S. Cetre, O. Guyon et al. "Keck Planet Imager and Characterizer: concept and phased implementation". SPIE-INT SOC OPTICAL ENGINEERING, 2016. http://hdl.handle.net/10150/622026.
Knight, Justin M., John Brewer, Ryan Hamilton, Olivier Guyon, Thomas D. Milster e Karen Ward. "Design, fabrication, and testing of stellar coronagraphs for exoplanet imaging". SPIE-INT SOC OPTICAL ENGINEERING, 2017. http://hdl.handle.net/10150/627078.
Martinache, Frantz, Nemanja Jovanovic e Olivier Guyon. "Subaru Coronagraphic eXtreme Adaptive Optics: on-sky performance of the asymmetric pupil Fourier wavefront sensor". SPIE-INT SOC OPTICAL ENGINEERING, 2016. http://hdl.handle.net/10150/622025.
Libri sul tema "Coronagraphie":
United States. National Aeronautics and Space Administration., a cura di. [Coronagraphic observations and analyses of the ultraviolet solar corona. [Washington, DC: National Aeronautics and Space Administration, 1994.
United States. National Aeronautics and Space Administration., a cura di. [Coronagraphic observations and analyses of the ultraviolet solar corona. [Washington, DC: National Aeronautics and Space Administration, 1994.
Mazereau, Pascal. A la poursuite du soleil: La construction du coronographe d'amateur. Paris: Eyrolles, 1985.
Workshop, National Solar Observatory/Sacramento Peak Summer. Infrared tools for solar astrophysics: What's next? : proceeedings of the fifteenth National Solar Observatory/Sacramento Peak Summer Workshop, Sunspot, New Mexico, USA, 19-22 September 1994. Singapore: World Scientific, 1995.
Shaklan, Stuart B. Techniques and instrumentation for detection of exoplanets V: 23-24 August 2011, San Diego, California, United States. Bellingham, Wash: SPIE, 2011.
R, Coulter Daniel, e Society of Photo-optical Instrumentation Engineers., a cura di. Techniques and instrumentation for detection of exoplanets: 5-7 August 2003, San Diego, California, USA. Bellingham, Wash., USA: SPIE, 2003.
Ferrari, A., M. Carbillet e C. Aime. Astronomy with high contrast imaging III: Instrumental techniques, modeling and data processing, Nice, France, May 16, 2005, Fréjus, France, May 17-19, 2005. Les Ulis, France: EDP Sciences, 2006.
Shaklan, Stuart B. Techniques and instrumentation for detection of exoplanets IV: 4-5 August 2009, San Diego, California, United States. A cura di SPIE (Society). Bellingham, Wash: SPIE, 2009.
Coulter, Daniel R. Techniques and instrumentation for detection of exoplanets III: 28-30 August 2007, San Diego, California, USA. Bellingham, Wash., USA: SPIE, 2007.
United States. National Aeronautics and Space Administration, a cura di. Spacelab Lyman alpha-white light coronagraph program: Final report for the period 12 March 1980 through 1 October 1983. [Washington, DC: National Aeronautics and Space Administration, 1986.
Capitoli di libri sul tema "Coronagraphie":
Rouan, Daniel. "Coronagraphy". In Encyclopedia of Astrobiology, 546–55. Berlin, Heidelberg: Springer Berlin Heidelberg, 2015. http://dx.doi.org/10.1007/978-3-662-44185-5_356.
Rouan, Daniel. "Coronagraphy". In Encyclopedia of Astrobiology, 363–72. Berlin, Heidelberg: Springer Berlin Heidelberg, 2011. http://dx.doi.org/10.1007/978-3-642-11274-4_356.
Rouan, Daniel. "Coronagraphy". In Encyclopedia of Astrobiology, 1–11. Berlin, Heidelberg: Springer Berlin Heidelberg, 2014. http://dx.doi.org/10.1007/978-3-642-27833-4_356-2.
Rouan, Daniel. "Coronagraphy". In Encyclopedia of Astrobiology, 674–83. Berlin, Heidelberg: Springer Berlin Heidelberg, 2023. http://dx.doi.org/10.1007/978-3-662-65093-6_356.
Noci, G., J. L. Kohl, M. C. E. Huber, E. Antonucci, S. Fineschi, L. D. Gardner, G. Naletto et al. "The Ultraviolet Coronagraph Spectrometer". In Lecture Notes in Physics, 261–70. Berlin, Heidelberg: Springer Berlin Heidelberg, 1995. http://dx.doi.org/10.1007/3-540-59109-5_56.
Boccaletti, Anthony, Jean-Charles Augereau, Gaël Chauvin, Pierre Riaud, Jacques Baudrand, François Lacombe, Daniel Rouan, Anne-Marie Lagrange e Pierre Baudoz. "Lyot Coronagraphy at the Palomar and Phase-Mask Coronagraphy at the VLT". In Science with Adaptive Optics, 25–30. Berlin, Heidelberg: Springer Berlin Heidelberg, 2005. http://dx.doi.org/10.1007/10828557_4.
Rabbia, Yves, Pierre Baudoz e Jean Gay. "Achromatic Interfero-Coronagraphy and VLT". In Scientific Drivers for ESO Future VLT/VLTI Instrumentation, 273–78. Berlin, Heidelberg: Springer Berlin Heidelberg, 2002. http://dx.doi.org/10.1007/978-3-662-43215-0_44.
Gay, J., Y. Rabbia e C. Manghini. "Interfero-Coronagraphy Using Pupil π-Rotation". In Infrared Space Interferometry: Astrophysics & the Study of Earth-Like Planets, 187–90. Dordrecht: Springer Netherlands, 1997. http://dx.doi.org/10.1007/978-94-011-5468-0_25.
Fisher, R. R., e M. Guhathakurta. "SPARTAN 201 White Light Coronagraph Experiment". In Mass Supply and Flows in the Solar Corona, 267–72. Dordrecht: Springer Netherlands, 1994. http://dx.doi.org/10.1007/978-94-011-0930-7_45.
Brueckner, G. E., R. A. Howard, M. J. Koomen, C. M. Korendyke, D. J. Michels, J. D. Moses, D. G. Socker et al. "The Large Angle Spectroscopic Coronagraph (LASCO)". In The SOHO Mission, 357–402. Dordrecht: Springer Netherlands, 1995. http://dx.doi.org/10.1007/978-94-009-0191-9_10.
Atti di convegni sul tema "Coronagraphie":
Ftaclas, Christ, Edward T. Siebert e Richard J. Terrile. "A High Efficiency Coronagraph for Astronomical Applications". In Space Optics for Astrophysics and Earth and Planetary Remote Sensing. Washington, D.C.: Optica Publishing Group, 1988. http://dx.doi.org/10.1364/soa.1988.wa5.
Watson, Steven M., e James P. Mills. "Incorporating coronographs with segmented telescopic systems for extrasolar planetary imaging". In OSA Annual Meeting. Washington, D.C.: Optica Publishing Group, 1989. http://dx.doi.org/10.1364/oam.1989.wv2.
Orban de Xivry, Gilles, Olivier Absil, Elsa Huby e Aïssa Jolivet. "Post-coronagraphic PSF sharpening with the vortex coronagraph". In Adaptive Optics for Extremely Large Telescopes 5. Instituto de Astrofísica de Canarias (IAC), 2017. http://dx.doi.org/10.26698/ao4elt5.0066.
Cady, Eric, Camilo Mejia Prada, Xin An, Kunjithapatham Balasubramanian, Rosemary Diaz, N. Jeremy Kasdin, Brian Kern et al. "Laboratory performance of the shaped pupil coronagraphic architecture for the WFIRST/AFTA coronagraph". In SPIE Optical Engineering + Applications, a cura di Stuart Shaklan. SPIE, 2015. http://dx.doi.org/10.1117/12.2189113.
Kasdin, N. Jeremy, Robert J. Vanderbei, Michael G. Littman, Michael Carr e David N. Spergel. "The shaped pupil coronagraph for planet finding coronagraphy: optimization, sensitivity, and laboratory testing". In SPIE Astronomical Telescopes + Instrumentation, a cura di John C. Mather. SPIE, 2004. http://dx.doi.org/10.1117/12.552273.
Blind, Nicolas, Bruno Chazelas, Jonas Kühn, Eddy Hocimi, Christophe Lovis, Mathilde Beaulieu, Thierry Fusco et al. "RISTRETTO: coronagraph and AO designs enabling High Dispersion Coronagraphy at 2 λ/D". In Adaptive Optics Systems VIII, a cura di Dirk Schmidt, Laura Schreiber e Elise Vernet. SPIE, 2022. http://dx.doi.org/10.1117/12.2628320.
Smartt, Raymond N., Serge Koutchmy e Eugene W. Cross. "Prototype reflecting coronagraph". In OSA Annual Meeting. Washington, D.C.: Optica Publishing Group, 1989. http://dx.doi.org/10.1364/oam.1989.wv1.
Ashcraft, Jaren N., Ewan S. Douglas, Ramya M. Anche, Kyle Van Gorkom, Maxwell A. Millar-Blanchaer, William Melby e Emory Jenkins. "The space coronagraph optical bench (SCoOB): 3. Mueller matrix polarimetry of a coronagraphic exit pupil". In Space Telescopes and Instrumentation 2024: Optical, Infrared, and Millimeter Wave, a cura di Laura E. Coyle, Marshall D. Perrin e Shuji Matsuura. SPIE, 2024. http://dx.doi.org/10.1117/12.3019204.
Smartt, Raymond N., Serge Koutchmy e Eugene W. Cross. "Reflecting coronagraph designs with specialized applications". In OSA Annual Meeting. Washington, D.C.: Optica Publishing Group, 1992. http://dx.doi.org/10.1364/oam.1992.thtt2.
Riggs, A. J. Eldorado, Garreth Ruane, Carl T. Coker, Stuart B. Shaklan, Brian D. Kern e Erkin Sidick. "Fast linearized coronagraph optimizer (FALCO) I: a software toolbox for rapid coronagraphic design and wavefront correction". In Space Telescopes and Instrumentation 2018: Optical, Infrared, and Millimeter Wave, a cura di Howard A. MacEwen, Makenzie Lystrup, Giovanni G. Fazio, Natalie Batalha, Edward C. Tong e Nicholas Siegler. SPIE, 2018. http://dx.doi.org/10.1117/12.2313812.
Rapporti di organizzazioni sul tema "Coronagraphie":
Altrock, Richard C. Ground-Based Coronagraphic Observations of Solar Streamers. Fort Belvoir, VA: Defense Technical Information Center, agosto 1992. http://dx.doi.org/10.21236/ada267259.
Kim, Iraida S. Mirror Coronagraphic Device - Development and Manufacture of a Reflecting Coronagraphic Device for Application in a Low-Scattered Light Telescope. Fort Belvoir, VA: Defense Technical Information Center, giugno 1997. http://dx.doi.org/10.21236/ada327249.
Karovska, Margarita. Enhancement of Lasco C1, C2, and C3 Coronagraph Images. Fort Belvoir, VA: Defense Technical Information Center, gennaio 1999. http://dx.doi.org/10.21236/ada359690.
Karpen, Judith T. A Search for Precursor Activity Associated with Coronal Mass Ejections, Using White-Light Coronagraph Observations Obtained with the SOLWIND Instrument on Board the Air Force P78-1 Satellite. Fort Belvoir, VA: Defense Technical Information Center, dicembre 1985. http://dx.doi.org/10.21236/ada170139.