Zobrazeno 1 - 10
of 11 498
pro vyhledávání: '"high-contrast imaging"'
Publikováno v:
SPIE Proceedings, 2024
The spectroscopic study of mature giant planets and low mass planets (Neptune-like, Earth-like) requires instruments capable of achieving very high contrasts ($10^{-10}-10^{-11}$) at short angular separations. To achieve such high performance on a re
Externí odkaz:
http://arxiv.org/abs/2411.13746
Autor:
Lau, Alexis, Choquet, Élodie, Altinier, Lisa, Laginja, Iva, Soummer, Rémi, Pueyo, Laurent, Godoy, Nicolas, Vigan, Arthur, Mary, David
The Roman Space Telescope will be a critical mission to demonstrate high-contrast imaging technologies allowing for the characterisation of exoplanets in reflected light. It will demonstrate $10^{-7}$ contrast limits or better at 3--9 $\lambda / D$ s
Externí odkaz:
http://arxiv.org/abs/2409.11062
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:
Blunt, Sarah, Wang, Jason Jinfei, Hirsch, Lea, Tejada, Roberto, Nagpal, Vighnesh, Surti, Tirth Dharmesh, Covarrubias, Sofia, McKenna, Thea, Chávez, Rodrigo Ferrer, Llop-Sayson, Jorge, Arora, Mireya, Chavez, Amanda, Cody, Devin, Choudhary, Saanika, Smith, Adam J. R. W., Balmer, William, Stolker, Tomas, Gallamore, Hannah, Ó, Clarissa R. Do, Nielsen, Eric L., De Rosa, Robert J.
orbitize! is a package for Bayesian modeling of the orbital parameters of resolved binary objects from time series measurements. It was developed with the needs of the high-contrast imaging community in mind, and has since also become widely used in
Externí odkaz:
http://arxiv.org/abs/2409.11573
Autor:
Frazin, Richard A.
Existing Electric Field Conjugation (EFC) methods are not suited for treating small polarization effects, referred to here as cross polarization. EFC utilizes a deformable mirror (DM) to nullify the electric fields from the host star within a \emph{d
Externí odkaz:
http://arxiv.org/abs/2410.03579
Direct imaging of exoplanets is a challenging task that involves distinguishing faint planetary signals from the overpowering glare of their host stars, often obscured by time-varying stellar noise known as "speckles". The predominant algorithms for
Externí odkaz:
http://arxiv.org/abs/2409.16466
Autor:
Harada, Caleb K., Dressing, Courtney D., Kane, Stephen R., Blunt, Sarah, Dietrich, Jamie, Hinkel, Natalie R., Li, Zhexing, Mamajek, Eric, Rice, Malena, Tuchow, Noah W., Turtelboom, Emma V., Wittenmyer, Robert A.
Future large, space-based observatories with starlight suppression technology, e.g., the Habitable Worlds Observatory (HWO), will directly image and characterize nearby Earth-like exoplanets. Prior limits on planet masses and system architectures fro
Externí odkaz:
http://arxiv.org/abs/2409.10679
Publikováno v:
Proc. SPIE 13092, Space Telescopes and Instrumentation 2024: Optical, Infrared, and Millimeter Wave, 130926I (23 August 2024)
The search for biosignatures in potentially habitable exoplanets is one of the major astrophysics' drivers for the coming decades, and the prime science goal of the HWO NASA mission, a large UV-Optical-IR space telescope to be launched in the 2040s.
Externí odkaz:
http://arxiv.org/abs/2409.02019
Autor:
Haffert, Sebastiaan Y., Males, Jared R, Close, Laird M., Kautz, Maggie Y., Durney, Olivier, Guyon, Olivier
The Giant Magellan Adaptive Optics eXtreme (GMagAO-X) instrument is a first-light high-contrast imaging instrument for the Giant Magellan Telescope (GMT). GMagAO-X's broad wavelength range and the large 25-meter aperture of the GMT creates new challe
Externí odkaz:
http://arxiv.org/abs/2407.13021