Zobrazeno 1 - 10
of 72
pro vyhledávání: '"Por, Emiel H."'
Autor:
Soummer, Rémi, Por, Emiel H., Pourcelot, Raphaël, Redmond, Susan, Laginja, Iva, Will, Scott D., Perrin, Marshall D., Pueyo, Laurent, Sahoo, Ananya, Petrone, Peter, Brooks, Keira J., Fox, Rachel, Klein, Alex, Nickson, Bryony, Comeau, Thomas, Ferrari, Marc, Gontrum, Rob, Hagopian, John, Leboulleux, Lucie, Leongomez, Dan, Lugten, Joe, Mugnier, Laurent M., N'Diaye, Mamadou, Nguyen, Meiji, Noss, James, Sauvage, Jean-François, Scott, Nathan, Sivaramakrishnan, Anand, Subedi, Hari B., Weinstock, Sam
We present recent laboratory results demonstrating high-contrast coronagraphy for the future space-based large IR/Optical/Ultraviolet telescope recommended by the Decadal Survey. The High-contrast Imager for Complex Aperture Telescopes (HiCAT) testbe
Externí odkaz:
http://arxiv.org/abs/2409.13026
Autor:
Soummer, Rémi, Pourcelot, Raphaël, Por, Emiel H., Steiger, Sarah, Laginja, Iva, Buralli, Benjamin, Redmond, Susan, Pueyo, Laurent, Perrin, Marshall D., Ferrari, Marc, Fowler, Jules, Hagopian, John, N'Diaye, Mamadou, Nguyen, Meiji, Nickson, Bryony, Petrone, Peter, Sahoo, Ananya, Sivaramakrishnan, Anand, Will, Scott D.
We present the final results of the Apodized Pupil Lyot Coronagraph (APLC) on the High-contrast imager for Complex Aperture Telescopes (HiCAT) testbed, under NASA's Strategic Astrophysics Technology program. The HiCAT testbed was developed over the p
Externí odkaz:
http://arxiv.org/abs/2409.12931
Autor:
Steiger, Sarah, Pueyo, Laurent, Por, Emiel H., Chen, Pin, Soummer, Rémi, Pourcelot, Raphaël, Laginja, Iva, Bailey, Vanessa P.
Publikováno v:
Proc. SPIE 13092, Space Telescopes and Instrumentation 2024: Optical, Infrared, and Millimeter Wave; 130921W
One of the primary science goals of the Habitable Worlds Observatory (HWO) as defined by the Astro2020 decadal survey is the imaging of the first Earth-like planet around a Sun-like star. A key technology gap towards reaching this goal are the develo
Externí odkaz:
http://arxiv.org/abs/2409.05987
Autor:
Vaughan, Sophia R., Gebhard, Timothy D., Bott, Kimberly, Casewell, Sarah L., Cowan, Nicolas B., Doelman, David S., Kenworthy, Matthew, Mazoyer, Johan, Millar-Blanchaer, Maxwell A., Trees, Victor J. H., Stam, Daphne M., Absil, Olivier, Altinier, Lisa, Baudoz, Pierre, Belikov, Ruslan, Bidot, Alexis, Birkby, Jayne L., Bonse, Markus J., Brandl, Bernhard, Carlotti, Alexis, Choquet, Elodie, van Dam, Dirk, Desai, Niyati, Fogarty, Kevin, Fowler, J., van Gorkom, Kyle, Gutierrez, Yann, Guyon, Olivier, Haffert, Sebastiaan Y., Herscovici-Schiller, Olivier, Hours, Adrien, Juanola-Parramon, Roser, Kleisioti, Evangelia, König, Lorenzo, van Kooten, Maaike, Krasteva, Mariya, Laginja, Iva, Landman, Rico, Leboulleux, Lucie, Mouillet, David, N'Diaye, Mamadou, Por, Emiel H., Pueyo, Laurent, Snik, Frans
NASA is engaged in planning for a Habitable Worlds Observatory (HabWorlds), a coronagraphic space mission to detect rocky planets in habitable zones and establish their habitability. Surface liquid water is central to the definition of planetary habi
Externí odkaz:
http://arxiv.org/abs/2307.15137
Autor:
Nickson, Bryony F., Por, Emiel H., Nguyen, Meiji M., Soummer, Remi, Laginja, Iva, Sahoo, Ananya, Pueyo, Laurent, Laurent, Kathryn St., N'Diaye, Mamadou, Zimmerman, Neil T., Noss, James, Perrin, Marshall
Publikováno v:
Space Telescopes and Instrumentation 2022: Optical, Infrared, and Millimeter Wave, edited by Laura E. Coyle, Shuji Matsuura, Marshall D. Perrin, Proc. of SPIE Vol. 12180, 121805K
We present a publicly available software package developed for exploring apodized pupil Lyot coronagraph (APLC) solutions for various telescope architectures. In particular, the package optimizes the apodizer component of the APLC for a given focal-p
Externí odkaz:
http://arxiv.org/abs/2210.03147
Autor:
Nguyen, Meiji M., Nickson, Bryony F., Por, Emiel H., Soummer, Remi, Hagopian, John G., Macintosh, Bruce, Chilcote, Jeffrey, Pueyo, Laurent, Perrin, Marshall, Konopacky, Quinn
The Gemini Planet Imager (GPI) is an integral field spectrograph (IFS) and coronagraph that is one of the few current generation instruments optimized for high-contrast direct imaging of substellar companions. The instrument is in the process of bein
Externí odkaz:
http://arxiv.org/abs/2209.12955
Autor:
Landman, Rico, Keller, Christoph, Por, Emiel H., Haffert, Sebastiaan, Doelman, David, Stockmans, Thijs
High-contrast imaging instruments need extreme wavefront control to directly image exoplanets. This requires highly sensitive wavefront sensors which optimally make use of the available photons to sense the wavefront. Here, we propose to numerically
Externí odkaz:
http://arxiv.org/abs/2209.05904
Autor:
Laginja, Iva, Sauvage, Jean-François, Mugnier, Laurent M., Pueyo, Laurent, Perrin, Marshall D., Noss, James, Will, Scott D., Brooks, Keira J., Por, Emiel H., Petrone, Peter, Soummer, Rémi
Publikováno v:
A&A 658, A84 (2022)
Context: The detection and characterization of Earth-like exoplanets (exoEarths) from space requires exquisite wavefront stability at contrast levels of $10^{-10}$. On segmented telescopes in particular, aberrations induced by cophasing errors lead t
Externí odkaz:
http://arxiv.org/abs/2110.14685
Autor:
Pourcelot, Raphaël, N'Diaye, Mamadou, Por, Emiel H., Perrin, Marshall, Soummer, Rémi, Laginja, Iva, Sahoo, Ananya, Carbillet, Marcel, Brady, Greg, Maclay, Matthew, Noss, James, Petrone, Pete, Pueyo, Laurent, Will, Scott D.
Future large segmented space telescopes and their coronagraphic instruments are expected to provide the resolution and sensitivity to observe Earth-like planets with a 10^10 contrast ratio at less than 100 mas from their host star. Advanced coronagra
Externí odkaz:
http://arxiv.org/abs/2109.01410
Publikováno v:
Proc. SPIE 11443, Space Telescopes and Instrumentation 2020: Optical, Infrared, and Millimeter Wave, 114433P (15 December 2020)
Modern coronagraph design relies on advanced, large-scale optimization processes that require an ever increasing amount of computational resources. In this paper, we restrict ourselves to the design of Apodized Pupil Lyot Coronagraphs (APLCs). To pro
Externí odkaz:
http://arxiv.org/abs/2012.10000