Zobrazeno 1 - 10
of 64
pro vyhledávání: '"van Kooten, Maaike A."'
Autor:
Fowler, J., Jensen-Clem, Rebecca, van Kooten, Maaike A. M., Chambouleyron, Vincent, Cetre, Sylvain
The direct imaging and characterization of exoplanets requires extreme adaptive optics (XAO), achieving exquisite wavefront correction (upwards of 90$\%$ Strehl) over a narrow field of view (a few arcseconds). For these XAO systems the temporal error
Externí odkaz:
http://arxiv.org/abs/2407.11187
Autor:
Salama, Maissa, Guthery, Charlotte, Chambouleyron, Vincent, Jensen-Clem, Rebecca, Wallace, J. Kent, Delorme, Jacques-Robert, Troy, Mitchell, Wenger, Tobias, Echeverri, Daniel, Finnerty, Luke, Jovanovic, Nemanja, Liberman, Joshua, Lopez, Ronald A., Mawet, Dimitri, Morris, Evan C., van Kooten, Maaike, Wang, Jason J., Wizinowich, Peter, Xin, Yinzi, Xuan, Jerry
We present the first on-sky segmented primary mirror closed-loop piston control using a Zernike wavefront sensor (ZWFS) installed on the Keck II telescope. Segment co-phasing errors are a primary contributor to contrast limits on Keck and will be nec
Externí odkaz:
http://arxiv.org/abs/2404.08728
Publikováno v:
Proceedings of the SPIE, Volume 12680, id. 126801V (2023)
Optimal atmospheric conditions are beneficial for detecting exoplanets via high contrast imaging (HCI), as speckles from adaptive optics' (AO's) residuals can make it difficult to identify exoplanets. While AO systems greatly improve our image qualit
Externí odkaz:
http://arxiv.org/abs/2310.08713
Autor:
Chambouleyron, Vincent, Sengupta, Aditya, Salama, Maïssa, van Kooten, Maaike A. M, Gerard, Benjamin L., Haffert, Sebastiaan Y., Cetre, Sylvain, Dillon, Daren, Kupke, Renate, Jensen-Clem, Rebecca, Hinz, Phil, Macintosh, Bruce
Publikováno v:
A&A 681, A48 (2024)
Adaptive optics (AO) is a technique to improve the resolution of ground-based telescopes by correcting, in real-time, optical aberrations due to atmospheric turbulence and the telescope itself. With the rise of Giant Segmented Mirror Telescopes (GSMT
Externí odkaz:
http://arxiv.org/abs/2309.14283
Autor:
Desai, Niyati, König, Lorenzo, Por, Emiel, Juanola-Parramon, Roser, Belikov, Ruslan, Laginja, Iva, Guyon, Olivier, Pueyo, Laurent, Fogarty, Kevin, Absil, Olivier, Altinier, Lisa, Baudoz, Pierre, Bidot, Alexis, Bonse, Markus Johannes, Bott, Kimberly, Brandl, Bernhard, Carlotti, Alexis, Casewell, Sarah L., Choquet, Elodie, Cowan, Nicolas B., Doelman, David, Fowler, J., Gebhard, Timothy D., Gutierrez, Yann, Haffert, Sebastiaan Y., Herscovici-Schiller, Olivier, Hours, Adrien, Kenworthy, Matthew, Kleisioti, Elina, Krasteva, Mariya, Landman, Rico, Leboulleux, Lucie, Mazoyer, Johan, Millar-Blanchaer, Maxwell A., Mouillet, David, NDiaye, Mamadou, Snik, Frans, van Dam, Dirk, van Gorkom, Kyle, van Kooten, Maaike, Vaughan, Sophia R.
The detection and characterization of Earth-like exoplanets around Sun-like stars is a primary science motivation for the Habitable Worlds Observatory. However, the current best technology is not yet advanced enough to reach the 10^-10 contrasts at c
Externí odkaz:
http://arxiv.org/abs/2309.04925
Autor:
Bowens-Rubin, Rachel, Murphy, Joseph M. Akana, Hinz, Philip M., Limbach, Mary Anne, Seifahrt, Andreas, Kiman, Rocio, Salama, Maïssa, Mukherjee, Sagnick, Brady, Madison, Carter, Aarynn L., Jensen-Clem, Rebecca, van Kooten, Maaike A. M., Isaacson, Howard, Kosiarek, Molly, Bean, Jacob L., Kasper, David, Luque, Rafael, Stefánsson, Gudmundur, Stürmer, Julian
Wolf 359 (CN Leo, GJ 406, Gaia DR3 3864972938605115520) is a low-mass star in the fifth-closest neighboring system (2.41 pc). Because of its relative youth and proximity, Wolf 359 offers a unique opportunity to study substellar companions around M st
Externí odkaz:
http://arxiv.org/abs/2309.03402
Autor:
Fowler, J., Haffert, Sebastiaan Y., van Kooten, Maaike A. M., Landman, Rico, Bidot, Alexis, Hours, Adrien, N'Diaye, Mamadou, Absil, Olivier, Altinier, Lisa, Baudoz, Pierre, Belikov, Ruslan, Bonse, Markus Johannes, Bott, Kimberly, Brandl, Bernhard, Carlotti, Alexis, Casewell, Sarah L., Choquet, Elodie, Cowan, Nicolas B., Desai, Niyati, Doelman, David, Fogarty, Kevin, Gebhard, Timothy D., Gutierrez, Yann, Guyon, Olivier, Herscovici-Schiller, Olivier, Juanola-Parramon, Roser, Kenworthy, Matthew, Kleisioti, Elina, Konig, Lorenzo, Krasteva, Mariya, Laginja, Iva, Leboulleux, Lucie, Mazoyer, Johan, Millar-Blanchaer, Maxwell A., Mouillet, David, Por, Emiel, Pueyo, Laurent, Snik, Frans, van Dam, Dirk, van Gorkom, Kyle, Vaughan, Sophia R.
Looking to the future of exo-Earth imaging from the ground, core technology developments are required in visible extreme adaptive optics (ExAO) to enable the observation of atmospheric features such as oxygen on rocky planets in visible light. UNDERG
Externí odkaz:
http://arxiv.org/abs/2309.00725
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:
Sengupta, Aditya R., Gerard, Benjamin L., Dillon, Daren, van Kooten, Maaike, Gavel, Donald, Jensen-Clem, Rebecca
We present the results of testing optimal linear-quadratic-Gaussian (LQG) control for tip and tilt Zernike wavefront modes on the SEAL (Santa cruz Extreme AO Lab) testbed. The controller employs a physics model conditioned by the expected tip/tilt po
Externí odkaz:
http://arxiv.org/abs/2209.14424
The Slicer Combined with Array of Lenslets for Exoplanet Spectroscopy (SCALES) is an instrument being designed to perform direct imaging of exoplanets in the mid-infrared (2-5 {\mu}m) with the Adaptive Optics System of W.M. Keck Observatory. To elimi
Externí odkaz:
http://arxiv.org/abs/2209.00048