Zobrazeno 1 - 10
of 3 880
pro vyhledávání: '"POTIER, P."'
Autor:
Potier, Axel, Riggs, A J Eldorado, Ruane, Garreth, Poon, Phillip K., Noyes, Matthew, Allan, Greg W., Walter, Alexander B., Prada, Camilo Mejia, Galicher, Raphael, Mazoyer, Johan, Baudoz, Pierre
Direct imaging of exoplanets relies on complex wavefront sensing and control architectures. In addition to fast adaptive optics systems, most of the future high-contrast imaging instruments will soon be equipped with focal plane wavefront sensing alg
Externí odkaz:
http://arxiv.org/abs/2408.14286
Autor:
Kühn, Jonas G., Jolissaint, Laurent, Baur, Audrey, Lin, Liurong, Potier, Axel, Tandon, Ruben, Çetni, Derya Öztürk, Piazza, Daniele, Brändli, Mathias, Manurung, Iljadin, Rieder, Martin
The Programmable Liquid-crystal Active Coronagraphic Imager for the DAG telescope (PLACID) instrument is a novel high-contrast direct imaging facility that was recently delivered to the Turkish 4-m DAG telescope, with first light anticipated by the e
Externí odkaz:
http://arxiv.org/abs/2408.10893
The programmable Liquid-crystal Active Coronagraphic Imager for the DAG Telescope (PLACID) instrument will be installed on the Turkish 4-m Telescope by the fall of 2024 and is expected to be on-sky by the end of the year. PLACID will be the first ''a
Externí odkaz:
http://arxiv.org/abs/2408.10891
Autor:
Tandon, Ruben, Lin, Liurong, Potier, Axel, Jolissaint, Laurent, Baur, Audrey, Çetni, Derya Öztürk, Kühn, Jonas G.
The world's first ever ''adaptive stellar coronagraph'' facility will be the PLACID instrument, installed on Turkey's new national observatory 4-m DAG telescope. PLACID incorporates a customized spatial light modulator (SLM) acting as a dynamically a
Externí odkaz:
http://arxiv.org/abs/2408.10890
Autor:
Mazoyer, Johan, Goulas, Charles, Vidal, Fabrice, Dinis, Isaac Bernardino, Milli, Julien, Tallon, Michel, Galicher, Raphaël, Absil, Oliver, Béchet, Clémentine, Boccaletti, Anthony, Ferreira, Florian, Langlois, Maud, Martinez, Patrice, Mugnier, Laurent, N'diaye, Mamadou, de Xivry, Gilles Orban, Potier, Axel, Tallon-Bosc, Isabelle, Vigan, Arthur
SAXO+ is a planned enhancement of the existing SAXO, the VLT/ SPHERE adaptive optics system, deployed on ESO's Very Large Telescope. This upgrade is designed to significantly enhance the instrument's capacity to detect and analyze young Jupiter-like
Externí odkaz:
http://arxiv.org/abs/2406.18424
Autor:
Galicher, Raphael, Potier, Axel, Mazoyer, Johan, Wahhaj, Zahed, Baudoz, Pierre, Chauvin, Gaël
Imaging exoplanetary systems is essential to characterizing exoplanetary systems and to studying planet-disk interactions to understand planet formation. Such imaging in the visible and near-infrared is challenging because these objects are very fain
Externí odkaz:
http://arxiv.org/abs/2403.18939
Consistent operation of adaptive optics (AO) systems requires the use of a wavefront sensor (WFS) with high sensitivity and low noise. The nonlinear curvature WFS (nlCWFS) has been shown both in simulations and lab experiments to be more sensitive th
Externí odkaz:
http://arxiv.org/abs/2312.01465
Autor:
Poon, Phillip K., Potier, Axel, Ruane, Garreth, Walter, Alex B., Riggs, A J Eldorado, Noyes, Matthew, Prada, Camilo Mejia, Ahn, Kyohoon, Guyon, Olivier
Due to the low flux of exoEarths, long exposure times are required to spectrally characterize them. During these long exposures, the contrast in the dark hole will degrade as the the optical system drifts from its initial DH state. To prevent such co
Externí odkaz:
http://arxiv.org/abs/2309.17449
Autor:
Desai, Niyati, Potier, Axel, Redmond, Susan F., Ruane, Garreth, Poon, Phillip K., Riggs, A. J. Eldorado, Noyes, Matthew, Prada, Camilo Mejia
Publikováno v:
J. Astron. Telesc. Instrum. Syst. 10(3), 035001 (2024)
Future space telescope coronagraph instruments hinge on the integration of high-performance masks and precise wavefront sensing and control techniques to create dark holes essential for exoplanet detection. Recent advancements in wavefront control al
Externí odkaz:
http://arxiv.org/abs/2309.04920
Autor:
Doelman, David S., Ouellet, Mireille, Potier, Axel, Ruane, Garreth, van Gorkom, Kyle, Haffert, Sebastiaan Y., Douglas, Ewan S., Snik, Frans
The future Habitable Worlds Observatory aims to characterize the atmospheres of rocky exoplanets around solar-type stars. The vector vortex coronagraph (VVC) is a main candidate to reach the required contrast of $10^{-10}$. However, the VVC requires
Externí odkaz:
http://arxiv.org/abs/2309.02053