Letteratura scientifica selezionata sul tema "Lyot coronagraph"
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Articoli di riviste sul tema "Lyot coronagraph":
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.
Kim, I. S., e O. I. Bugaenko. "On magnetic measurements in prominences". Proceedings of the International Astronomical Union 8, S300 (giugno 2013): 426–27. http://dx.doi.org/10.1017/s1743921313011393.
Anche, Ramya M., Ewan Douglas, Kian Milani, Jaren Ashcraft, Maxwell A. Millar-Blanchaer, John H. Debes, Julien Milli e Justin Hom. "Simulation of High-contrast Polarimetric Observations of Debris Disks with the Roman Coronagraph Instrument". Publications of the Astronomical Society of the Pacific 135, n. 1054 (1 dicembre 2023): 125001. http://dx.doi.org/10.1088/1538-3873/ad0a72.
Carbillet, Marcel, Philippe Bendjoya, Lyu Abe, Géraldine Guerri, Anthony Boccaletti, Jean-Baptiste Daban, Kjetil Dohlen et al. "Apodized Lyot coronagraph for SPHERE/VLT". Experimental Astronomy 30, n. 1 (24 marzo 2011): 39–58. http://dx.doi.org/10.1007/s10686-011-9219-4.
Rougeot, R., R. Flamary, D. Mary e C. Aime. "Influence of surface roughness on diffraction in the externally occulted Lyot solar coronagraph". Astronomy & Astrophysics 626 (giugno 2019): A1. http://dx.doi.org/10.1051/0004-6361/201834634.
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.
Trauger, John, Dwight Moody, John Krist e Brian Gordon. "Hybrid Lyot coronagraph for WFIRST-AFTA: coronagraph design and performance metrics". Journal of Astronomical Telescopes, Instruments, and Systems 2, n. 1 (14 gennaio 2016): 011013. http://dx.doi.org/10.1117/1.jatis.2.1.011013.
Soummer, R., L. Pueyo, A. Sivaramakrishnan e R. J. Vanderbei. "Fast computation of Lyot-style coronagraph propagation". Optics Express 15, n. 24 (2007): 15935. http://dx.doi.org/10.1364/oe.15.015935.
Loutsenko, Igor, e Oksana Yermolayeva. "Quasi-Band-Limited Coronagraph for Extended Sources". Journal of Astronomical Instrumentation 10, n. 01 (10 febbraio 2021): 2150002. http://dx.doi.org/10.1142/s2251171721500021.
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.
Tesi sul tema "Lyot coronagraph":
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
Venet, Melanie. "Coronographes spatiaux : Solar Orbiter / Metis, Smese / Lyot, Proba-3 / Aspiics". Thesis, Aix-Marseille 1, 2011. http://www.theses.fr/2011AIX10011.
The solar corona is the part of the Sun's atmosphere that extends from the photosphere (solar surface where the photons are emitted) into the interplanetary medium. Its understanding is a major issue because it is the source of phenomena that can disrupt telecommunications, living beings and even climate. The most appropriate tool to observe it is the coronagraph, an optical system obscuring the solar disk in favor of the corona, a million times fainter. My thesis deals with its review, particularly through the spaceprojects :- Solar Orbiter, which will approach the Sun at 0.2 astronomical unit (distance between Earth and Sun), allowing a very high spatial resolution ;- SMESE, in cooperation with China, which should study the corona in the Lymanalpha (and far infrared) ;- and ASPIICS, which will observe the corona in conditions close to a natural solar eclipse, with its occulting disk located at 150 m from the imaging instrument.The first point tackled is the rejection of instrumental stray light, whose optimization is one of the major problems in coronagraphy. The second concerns the methods of observation and imaging in white light, monochromatic imaging, and interferometry, in particular the Fabry Perot. The development and improvement of these techniques will allow considerable progress in terms of resolution and access to the corona ever closer to the Sun's surface, the location yet little known where the solar activity originates
Capitoli di libri sul tema "Lyot coronagraph":
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.
Atti di convegni sul tema "Lyot coronagraph":
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.
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.
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.
Trauger, John, Brian Gordon, John Krist e Dwight Moody. "Hybrid Lyot coronagraph for WFIRST-AFTA: coronagraph design and performance metrics". In SPIE Optical Engineering + Applications, a cura di Stuart Shaklan. SPIE, 2015. http://dx.doi.org/10.1117/12.2190625.
Socker, Dennis G., Guenter E. Brueckner, Clarence M. Korendyke, D. N. Lilley, James H. Steenson, Preston M. Kohn, Gail M. Lyons et al. "LASCO spectrometric Lyot coronagraph tunable passband filter". In SPIE's 1996 International Symposium on Optical Science, Engineering, and Instrumentation, a cura di David M. Rust. SPIE, 1996. http://dx.doi.org/10.1117/12.259711.
Vigan, A., M. N'Diaye e K. Dohlen. "Stop-less Lyot coronagraph for exoplanet characterization". In SPIE Astronomical Telescopes + Instrumentation, a cura di Ian S. McLean, Suzanne K. Ramsay e Hideki Takami. SPIE, 2012. http://dx.doi.org/10.1117/12.925294.
Vial, Jean-Claude, Xueyan Song, Philippe Lemaire, Alan H. Gabriel, Jean-Pierre Delaboudiniere, Karine Bocchialini, Serge L. Koutchmy et al. "The solar high-resolution imager - coronagraph LYOT mission". In Astronomical Telescopes and Instrumentation, a cura di Stephen L. Keil e Sergey V. Avakyan. SPIE, 2003. http://dx.doi.org/10.1117/12.460291.
Lucas, Miles, Michael Bottom, Olivier Guyon, Julien Lozi, Barnaby Norris, Vincent Deo, Sébastien Vievard, Kyohoon Ahn, Nour Skaf e Peter Tuthill. "A visible-light Lyot coronagraph for SCExAO/VAMPIRES". In Ground-based and Airborne Instrumentation for Astronomy IX, a cura di Christopher J. Evans, Julia J. Bryant e Kentaro Motohara. SPIE, 2022. http://dx.doi.org/10.1117/12.2632269.
Breckinridge, J. B., e R. A. Chipman. "Telescope polarization and image quality: Lyot coronagraph performance". In SPIE Astronomical Telescopes + Instrumentation, a cura di Howard A. MacEwen, Giovanni G. Fazio, Makenzie Lystrup, Natalie Batalha, Nicholas Siegler e Edward C. Tong. SPIE, 2016. http://dx.doi.org/10.1117/12.2231242.
Zimmerman, Neil T., A. J. Eldorado Riggs, N. Jeremy Kasdin, Alexis Carlotti e Robert J. Vanderbei. "Shaped pupil Lyot coronagraph designs for WFIRST/AFTA". In SPIE Optical Engineering + Applications, a cura di Stuart Shaklan. SPIE, 2015. http://dx.doi.org/10.1117/12.2187141.