Zobrazeno 1 - 10
of 3 793
pro vyhledávání: '"Guyon, P"'
Autor:
Lucas, Miles, Norris, Barnaby, Guyon, Olivier, Bottom, Michael, Deo, Vincent, Vievard, Sébastian, Lozi, Julien, Ahn, Kyohoon, Ashcraft, Jaren, Currie, Thayne, Doelman, David, Kudo, Tomoyuki, Leboulleux, Lucie, Lilley, Lucinda, Millar-Blanchaer, Maxwell, Safonov, Boris, Tuthill, Peter, Uyama, Taichi, Walk, Aidan, Zhang, Manxuan
We present significant upgrades to the VAMPIRES instrument, a visible-light (600 nm to 800 nm) high-contrast imaging polarimeter integrated within SCExAO on the Subaru telescope. Key enhancements include new qCMOS detectors, coronagraphs, polarizatio
Externí odkaz:
http://arxiv.org/abs/2410.12199
Autor:
Dykes, Erica, Currie, Thayne, Lawson, Kellen, Lucas, Miles, Kudo, Tomoyuki, Chen, Minghan, Guyon, Olivier, Groff, Tyler D, Lozi, Julien, Chilcote, Jeffrey, Brandt, Timothy D., Vievard, Sebastien, Skaf, Nour, Deo, Vincent, Morsy, Mona El, Bovie, Danielle, Uyama, Taichi, Grady, Carol, Sitko, Michael, Hashimoto, Jun, Martinache, Frantz, Jovanovic, Nemanja, Tamura, Motohide, Kasdin, N. Jeremy
We analyze near-infrared integral field spectropolarimetry of the AB Aurigae protoplanetary disk and protoplanet (AB Aur b), obtained with SCExAO/CHARIS in 22 wavelength channels covering the J, H, and K passbands ($\lambda_{\rm o}$ = 1.1--2.4 $\mu m
Externí odkaz:
http://arxiv.org/abs/2410.11939
Publikováno v:
Pattern Recognition Letters, 2024, 185, pp.225-231
Training a large set of machine learning algorithms to convergence in order to select the best-performing algorithm for a dataset is computationally wasteful. Moreover, in a budget-limited scenario, it is crucial to carefully select an algorithm cand
Externí odkaz:
http://arxiv.org/abs/2410.07696
Autor:
Bhimji, Wahid, Calafiura, Paolo, Chakkappai, Ragansu, Chou, Yuan-Tang, Diefenbacher, Sascha, Dudley, Jordan, Farrell, Steven, Ghosh, Aishik, Guyon, Isabelle, Harris, Chris, Hsu, Shih-Chieh, Khoda, Elham E, Lyscar, Rémy, Michon, Alexandre, Nachman, Benjamin, Nugent, Peter, Reymond, Mathis, Rousseau, David, Sluijter, Benjamin, Thorne, Benjamin, Ullah, Ihsan, Zhang, Yulei
The FAIR Universe -- HiggsML Uncertainty Challenge focuses on measuring the physics properties of elementary particles with imperfect simulators due to differences in modelling systematic errors. Additionally, the challenge is leveraging a large-comp
Externí odkaz:
http://arxiv.org/abs/2410.02867
Autor:
Skaf, Nour, Jensen-Clem, Rebecca, Hunter, Aaron, Guyon, Olivier, Deo, Vincent, Hinz, Phil, Cetre, Sylvain, Chambouleyron, Vincent, Fowler, J., Sengupa, Aditya, Salama, Maissa, Males, Jared, McEwen, Eden, Douglas, Ewan S., Van Gorkom, Kyle, Por, Emiel, Lucas, Miles, Ferreira, Florian, Sevin, Arnaud, Bowens-Rubin, Rachel, Cranney, Jesse, Calvin, Ben
Real-time control (RTC) is pivotal for any Adaptive Optics (AO) system, including high-contrast imaging of exoplanets and circumstellar environments. It is the brain of the AO system, and what wavefront sensing and control (WFS\&C) techniques need to
Externí odkaz:
http://arxiv.org/abs/2409.13126
Autor:
Johnson, Jess A., Vaz, Amali, Montoya, Manny, Morzinski, Katie M., Patience, Jennifer, Sivanandam, Suresh, Brusa, Guido, Durney, Olivier, Gardner, Andrew, Guyon, Olivier, Harrison, Lori, Jones, Ron, Leisenring, Jarron, Males, Jared, Payan, Bianca, Perez, Lauren, Rotman, Yoav, Taylor, Jacob, Vargas, Dan, West, Grant
The MMT Adaptive optics exoPlanet characterization System (MAPS) is currently in its engineering phase, operating on-sky at the MMT Telescope on Mt. Hopkins in southern Arizona. The MAPS Adaptive Secondary Mirror's actuators are controlled by a close
Externí odkaz:
http://arxiv.org/abs/2409.12480
Autor:
Blind, N., Shinde, M., Dinis, I., Restori, N., Chazelas, B., Fusco, T., Guyon, O., Kuehn, J., Lovis, C., Martinez, P., Motte, M., Sauvage, J. -F., Spang, A.
Publikováno v:
Proceedings Volume 13097, Adaptive Optics Systems IX; 130976U (2024)
RISTRETTO is the evolution of the original idea of coupling the VLT instruments SPHERE and ESPRESSO \cite{lovis_2016a}, aiming at High Dispersion Coronagraphy. RISTRETTO is a visitor instrument that should enable the characterization of the atmospher
Externí odkaz:
http://arxiv.org/abs/2409.08052
Autor:
Vievard, Sébastien, Lallement, Manon, Leon-Saval, Sergio, Guyon, Olivier, Jovanovic, Nemanja, Huby, Elsa, Lacour, Sylvestre, Lozi, Julien, Deo, Vincent, Ahn, Kyohoon, Lucas, Miles, Sallum, Steph, Norris, Barnaby, Betters, Chris, Amezcua-Correa, Rodrygo, Yerolatsitis, Stephanos, Fitzgerald, Michael, Lin, Jon, Kim, Yoo Jung, Gatkine, Pradip, Kotani, Takayuki, Tamura, Motohide, Currie, Thayne, Kenchington, Harry-Dean, Martin, Guillermo, Perrin, Guy
Photonic lanterns are waveguide devices enabling high throughput single mode spectroscopy and high angular resolution. We aim to present the first on-sky demonstration of a photonic lantern (PL) operating in visible light, to measure its throughput a
Externí odkaz:
http://arxiv.org/abs/2409.06958
Design, scientific goals, and performance of the SCExAO survey for planets around accelerating stars
Autor:
Morsy, Mona El, Currie, Thayne, Kuzuhara, Masayuki, Chilcote, Jeffrey, Guyon, Olivier, Tobin, Taylor L., Brandt, Timothy, An, Qier, Anh, Kyohoon, Bovie, Danielle, Deo, Vincent, Groff, Tyler, Gu, Ziying, Janson, Markus, Jovanovic, Nemanja, Li, Yiting, Lawson, Kellen, Lozi, Julien, Lucas, Miles, Marois, Christian, Murakami, Naoshi, Nielsen, Eric, Norris, Barnaby, Skaf, Nour, Tamura, Motohide, Thompson, William, Uyama, Taichi, Vievard, Sebastien
We describe the motivation, design, and early results for our 42-night, 125 star Subaru/SCExAO direct imaging survey for planets around accelerating stars. Unlike prior large surveys, ours focuses only on stars showing evidence for an astrometric acc
Externí odkaz:
http://arxiv.org/abs/2409.06773
Autor:
Deo, Vincent, Vievard, Sebastien, Lallement, Manon, Lucas, Miles, Huby, Elsa, Ahn, Kyohoon, Guyon, Olivier, Lozi, Julien, Kenchington-Goldsmith, Harry-Dean, Lacour, Sylvestre, Martin, Guillermo, Norris, Barnaby, Perrin, Guy, Singh, Garima, Tuthill, Peter
The petaling effect, induced by pupil fragmentation from the telescope spider, drastically affects the performance of high contrast instruments by inducing core splitting on the PSF. Differential piston/tip/tilt aberrations within each optically sepa
Externí odkaz:
http://arxiv.org/abs/2409.05246