Search Results - "Neichel, B"

Blind deconvolution in astronomy with adaptive optics: the parametric marginal approach by Fétick, R J-L, Mugnier, L M, Fusco, T, Neichel, B

“…ABSTRACT One of the major limitations of using adaptive optics (AO) to correct image post-processing is the lack of knowledge about the system’s point spread…”
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Limitations imposed by optical turbulence profile structure and evolution on tomographic reconstruction for the ELT by Farley, O J D, Osborn, J, Morris, T, Fusco, T, Neichel, B, Correia, C, Wilson, R W

“…ABSTRACT The performance of tomographic adaptive optics (AO) systems is intrinsically linked to the vertical profile of optical turbulence. First, a sufficient…”
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PRIME: PSF Reconstruction and Identification for Multiple-source characterization Enhancement – application to Keck NIRC2 imager by Beltramo-Martin, O, Correia, C M, Ragland, S, Jolissaint, L, Neichel, B, Fusco, T, Wizinowich, P L

“…ABSTRACT In order to enhance the scientific exploitation of adaptive optics (AO)-assisted observations, we investigate a novel hybrid concept to improve the…”
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Optimal correction of distortion for high-angular-resolution images: Application to GeMS data by Bernard, A., Neichel, B., Mugnier, L. M., Fusco, T.

“…Whether ground based or space based, any optical instrument suffers from some amount of optical geometric distortion. Recently, the diffraction-limited image…”
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Pushing point-spread function reconstruction to the next level: application to SPHERE/ZIMPOL by Beltramo-Martin, O, Marasco, A, Fusco, T, Massari, D, Milli, J, Fiorentino, G, Neichel, B

“…ABSTRACT Point-spread function (PSF) reconstruction (PSF-R) is a well-established technique to determine the PSF reliably and accurately from adaptive optics…”
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Towards an automatic wind speed and direction profiler for Wide Field adaptive optics systems by Sivo, G, Turchi, A, Masciadri, E, Guesalaga, A, Neichel, B

“…Wide Field Adaptive Optics (WFAO) systems are among the most sophisticated AO systems available today on large telescopes. The knowledge of the vertical…”
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A new calibration strategy for adaptive telescopes with pyramid WFS by Heritier, C T, Esposito, S, Fusco, T, Neichel, B, Oberti, S, Briguglio, R, Agapito, G, Puglisi, A, Pinna, E, Madec, P Y

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SPRINT, system parameters recurrent invasive tracking: a fast and least-cost online calibration strategy for adaptive optics by Heritier, C T, Fusco, T, Oberti, S, Neichel, B, Esposito, S, Madec, P-Y

“…ABSTRACT Future large adaptive telescopes will trigger new constraints for the calibration of adaptive optics (AO) systems equipped with pre-focal deformable…”
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Off-axis point spread function characterization in laser guide star adaptive optics systems by Beltramo-Martin, O, Correia, C M, Mieda, E, Neichel, B, Fusco, T, Witzel, G, Lu, J R, Véran, J-P

“…ABSTRACT Adaptive optics (AO) restore the angular resolution of ground-based telescopes, but at the cost of delivering a time- and space-varying point spread…”
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Identifying optical turbulence profiles for realistic tomographic error in adaptive optics by Farley, O J D, Osborn, J, Morris, T, Fusco, T, Neichel, B, Correia, C, Wilson, R W

“…ABSTRACT For extremely large telescopes, adaptive optics will be required to correct the Earth’s turbulent atmosphere. The performance of tomographic adaptive…”
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The Proper Motion of Pyxis: The First Use of Adaptive Optics in Tandem with HST on a Faint Halo Object by Fritz, T. K., Linden, S. T., Zivick, P., Kallivayalil, N., Beaton, R. L., Bovy, J., Sales, L. V., Sohn, T., Angell, D., Boylan-Kolchin, M., Carrasco, E. R., Damke, G., Davies, R., Majewski, S., Neichel, B., Marel, R. van der

“…We present a proper motion measurement for the halo globular cluster Pyxis, using Hubble Space Telescope/ACS data as the first epoch and GeMS/GSAOI Adaptive…”
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Characterization of the sodium layer at Cerro Pachón, and impact on laser guide star performance by Neichel, B., D'Orgeville, C., Callingham, J., Rigaut, F., Winge, C., Trancho, G.

“…Detailed knowledge of the mesospheric sodium layer characteristics is crucial to estimate and optimize the performance of laser guide star (LGS) assisted…”
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Online estimation of the wavefront outer scale profile from adaptive optics telemetry by Guesalaga, A, Neichel, B, Correia, C M, Butterley, T, Osborn, J, Masciadri, E, Fusco, T, Sauvage, J-F

“…We describe an online method to estimate the wavefront outer scale profile, L0(h), for very large and future extremely large telescopes. The stratified…”
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Simulating the detection and classification of high-redshift supernovae with HARMONI on the ELT by Bounissou, S, Thatte, N, Zieleniewski, S, Houghton, R C W, Tecza, M, Hook, I, Neichel, B, Fusco, T

“…We present detailed simulations of integral field spectroscopic observations of a supernova in a host galaxy at z ∼ 3, as observed by the HARMONI spectrograph…”
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Gemini multiconjugate adaptive optics system review - I. Design, trade-offs and integration by Rigaut, F., Neichel, B., Boccas, M., d'Orgeville, C., Vidal, F., van Dam, M. A., Arriagada, G., Fesquet, V., Galvez, R. L., Gausachs, G., Cavedoni, C., Ebbers, A. W., Karewicz, S., James, E., Luhrs, J., Montes, V., Perez, G., Rambold, W. N., Rojas, R., Walker, S., Bec, M., Trancho, G., Sheehan, M., Irarrazaval, B., Boyer, C., Ellerbroek, B. L., Flicker, R., Gratadour, D., Garcia-Rissmann, A., Daruich, F.

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Simulating the physics and mass assembly of distant galaxies out to z∼ 6 with the E-ELT by Puech, M., Rosati, P., Toft, S., Cimatti, A., Neichel, B., Fusco, T.

“…One of the main scientific goals of the future European Extremely Large Telescope (E-ELT) will be to understand the mass assembly process in galaxies as a…”
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Coupling MOAO with integral field spectroscopy: specifications for the VLT and the E-ELT by Puech, M., Flores, H., Lehnert, M., Neichel, B., Fusco, T., Rosati, P., Cuby, J.-G., Rousset, G.

“…Elucidating the processes that governed the assembly and evolution of galaxies over cosmic time is one of the main objectives of all of the proposed Extremely…”
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Modeling and Estimation of Adaptive Optics-Corrected long-exposure Point Spread Function Using Gaussian Sum Approximation by Escárate, Pedro, Osorio, B, Zamorano, C, Coronel, M, Orellana, R, Agüero, J C, Neichel, B

“…Abstract Adaptive optics (AO) enhances astronomical images by correcting perturbations in the optical system, resulting in complex point spread function (PSF)…”
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An upper limit to the sodium layer longitudinal and transversal altitude structure function from MCAO data by Rigaut, F., Neichel, B.

“…The Gemini Multi-Conjugate Adaptive Optics System is the first sodium-based Multi-Laser Guide Star (LGS) Adaptive Optics system used for astronomy. It uses…”
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Current status of PAPYRUS : the pyramid based adaptive optics system at LAM/OHP by E, Muslimov, N, Levraud, V, Chambouleyron, I, Boudjema, A, Lau, A, Caillat, F, Pedreros, G, Otten, K, El Hadi, K, Joaquina, M, Lopez, M, El Morsy, O, Beltramo Martin, R, Fetick, Z, Ke, J-F, Sauvage, B, Neichel, T, Fusco, J, Schmitt, A, Le Van Suu, J, Charton, A, Schimpf, B, Martin, F, Dintrono, S, Esposito, E, Pina

“…Proc. SPIE 11876, Optical Instrument Science, Technology, and Applications II, 118760H (24 September 2021); The Provence Adaptive optics Pyramid Run System…”
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