Zobrazeno 1 - 10
of 764
pro vyhledávání: '"Martín, Guillermo"'
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
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
Autor:
Lallement, Manon, Lacour, Sylvestre, Huby, Elsa, Martin, Guillermo, Barjot, Kevin, Perrin, Guy, Rouan, Daniel, Lapeyrere, Vincent, Vievard, Sebastien, Guyon, Olivier, Lozi, Julien, Deo, Vincent, Kotani, Takayuki, Pham, Cecil, Cassagnettes, Cedric, Billat, Adrien, Cvetojevic, Nick, Marchis, Franck
Publikováno v:
Proceeding SPIE Astronomical Telescopes + Instrumentation, Montreal, Quebec, Canada, Volume 12188, Advances in Optical and Mechanical Technologies for Telescopes and Instrumentation V, 121882F (2022)
Integrated optics are used to achieve astronomical interferometry inside robust and compact materials, improving the instruments stability and sensitivity. In order to perform differential phase measurements at the H$\alpha$ line (656.3 nm) with the
Externí odkaz:
http://arxiv.org/abs/2409.03808
Autor:
Lallement, Manon, Huby, Elsa, Lacour, Sylvestre, Martin, Guillermo, Barjot, Kevin, Perrin, Guy, Rouan, Daniel, Lapeyrere, Vincent, Vievard, Sebastien, Guyon, Olivier, Lozi, Julien, Deo, Vincent, Kotani, Takayuki, Pham, Cecil, Cassagnettes, Cedric, Billat, Adrien, Cvetojevic, Nick, Marchis, Franck
Publikováno v:
Journal of Astronomical Telescopes, Instruments, and Systems, Vol. 9, Issue 2, 025003 (April 2023)
Integrated optics are used to achieve astronomical interferometry inside robust and compact materials, improving the instrument's stability and sensitivity. In order to perform differential phase measurements at the H$\alpha$ line (656.3 nm) with the
Externí odkaz:
http://arxiv.org/abs/2409.03476
Autor:
Vievard, Sébastien, Lallement, Manon, Leon-Saval, Sergio, Guyon, Olivier, Jovanovic, Nemanja, Huby, Elsa, Lacour, Sylvestre, Lozi, Julien, Deo, Vincent, Ahn, Kyohoon, Lucas, Miles, Currie, Thayne, Sallum, Steph, Fitzgerald, Michael P., Betters, Chris, Norris, Barnaby, Amezcua-Correa, Rodrigo, Yerolatsitis, Stephanos, Lin, Jon, Kim, Yoo-Jung, Gatkine, Pradip, Kotani, Takayuki, Tamura, Motohide, Martin, Guillermo, Goldsmith, Harry-Dean Kenchington, Perrin, Guy
A Photonic Lantern (PL) is a novel device that efficiently converts a multi-mode fiber into several single-mode fibers. When coupled with an extreme adaptive optics (ExAO) system and a spectrograph, PLs enable high throughput spectroscopy at high ang
Externí odkaz:
http://arxiv.org/abs/2407.15412
Autor:
Defrère, Denis, Laugier, Romain, Martinod, Marc-Antoine, Garreau, Germain, Missiaen, Kwinten, Salman, Muhammad, Raskin, Gert, Dandumont, Colin, Ertel, Steve, Ireland, Michael J., Kraus, Stefan, Labadie, Lucas, Mazzoli, Alexandra, Medgyesi, Gyorgy, Sanny, Ahmed, Absil, Olivier, Ábráham, Peter, Berger, Jean-Philippe, Bonduelle, Myriam, Bigioli, Azzurra, Bouzerand, Emilie, Carter, Josh, Cvetojevic, Nick, Courtney-Barrer, Benjamin, Glauser, Adrian M., Gross, Simon, Haubois, Xavier, James, Noel, Joo, Andras Peter, Lagarde, Stephane, Léger, Alain, Leisenring, Jarron, Loicq, Jérôme, Martin, Guillermo, Martinache, Frantz, Mezo, Gyorgy, Morel, Sébastien, Morren, Johan, Ollivier, Marc, Robertson, Gordon, Rousseau, Hélène, Schofield, Warrick, Schuhler, Nicolas, Taras, Adam, Vandenbussche, Bart, Woillez, Julien
NOTT (formerly Hi-5) is the L'-band (3.5-4.0~microns) nulling interferometer of Asgard, an instrument suite in preparation for the VLTI visitor focus. The primary scientific objectives of NOTT include characterizing (i) young planetary systems near t
Externí odkaz:
http://arxiv.org/abs/2407.08397
Asgard/NOTT: L-band nulling interferometry at the VLTI. II. Warm optical design and injection system
Autor:
Garreau, Germain, Bigioli, Azzurra, Laugier, Romain, Raskin, Gert, Morren, Johan, Berger, Jean-Philippe, Dandumont, Colin, Goldsmith, Harry-Dean Kenchington, Gross, Simon, Ireland, Michael, Labadie, Lucas, Loicq, Jérôme, Madden, Stephen, Martin, Guillermo, Martinod, Marc-Antoine, Mazzoli, Alexandra, Sanny, Ahmed, Shao, Hancheng, Yan, Kunlun, Defrère, Denis
Publikováno v:
J. Astron. Telesc. Instrum. Syst. 10(1), 015002 (2024)
Asgard/NOTT (previously Hi-5) is a European Research Council (ERC)-funded project hosted at KU Leuven and a new visitor instrument for the Very Large Telescope Interferometer (VLTI). Its primary goal is to image the snow line region around young star
Externí odkaz:
http://arxiv.org/abs/2402.09013
Autor:
Jovanovic, Nemanja, Gatkine, Pradip, Anugu, Narsireddy, Amezcua-Correa, Rodrigo, Thakur, Ritoban Basu, Beichman, Charles, Bender, Chad, Berger, Jean-Philippe, Bigioli, Azzurra, Bland-Hawthorn, Joss, Bourdarot, Guillaume, Bradford, Charles M., Broeke, Ronald, Bryant, Julia, Bundy, Kevin, Cheriton, Ross, Cvetojevic, Nick, Diab, Momen, Diddams, Scott A., Dinkelaker, Aline N., Duis, Jeroen, Eikenberry, Stephen, Ellis, Simon, Endo, Akira, Figer, Donald F., Fitzgerald, Michael, Gris-Sanchez, Itandehui, Gross, Simon, Grossard, Ludovic, Guyon, Olivier, Haffert, Sebastiaan Y., Halverson, Samuel, Harris, Robert J., He, Jinping, Herr, Tobias, Hottinger, Philipp, Huby, Elsa, Ireland, Michael, Jenson-Clem, Rebecca, Jewell, Jeffrey, Jocou, Laurent, Kraus, Stefan, Labadie, Lucas, Lacour, Sylvestre, Laugier, Romain, Ławniczuk, Katarzyna, Lin, Jonathan, Leifer, Stephanie, Leon-Sava, Sergio, Martin, Guillermo, Martinache, Frantz, Martinod, Marc-Antoine, Mazin, Benjamin A., Minardi, Stefano, Monnier, John D., Moreira, Reinan, Mourard, Denis, Nayak, Abani Shankar, Norris, Barnaby, Obrzud, Ewelina, Perraut, Karine, Reynaud, François, Sallum, Steph, Schiminovich, David, Schwab, Christian, Serbayn, Eugene, Soliman, Sherif, Stoll, Andreas, Tang, Liang, Tuthill, Peter, Vahala, Kerry, Vasisht, Gautam, Veilleux, Sylvain, Walter, Alexander B., Wollack, Edward J., Xin, Yinzi, Yang, Zongyin, Yerolatsitis, Stephanos, Zhang, Yang, Zou, Chang-Ling
Publikováno v:
J. Phys. Photonics 5 042501 (2023)
Photonics offer numerous functionalities that can be used to realize astrophotonic instruments. The most spectacular example to date is the ESO Gravity instrument at the Very Large Telescope in Chile. Integrated astrophotonic devices stand to offer c
Externí odkaz:
http://arxiv.org/abs/2311.00615
Autor:
Vievard, Sébastien, Lallement, Manon, Huby, Elsa, Lacour, Sylvestre, Guyon, Olivier, Jovanovic, Nemanja, Leon-saval, Sergio, Lozi, Julien, Deo, Vincent, Ahn, Kyohoon, Cvetojevic, Nick, Barjot, Kevin, Martin, Guillermo, Kenchington-Goldsmith, Harry-Dean, Duchêne, Gaspard, Kotani, Takayuki, Marchis, Franck, Rouan, Daniel, Fitzgerald, Michael, Sallum, Steph, Norris, Barnaby, Betters, Chris, Gatkine, Pradip, Lin, John, Kim, Yoo Jung, Pham, Cécil, Cassagnettes, Cédric, Billat, Adrien, Tamura, Motohide, Perrin, Guy
FIRST is a post Extreme Adaptive-Optics (ExAO) spectro-interferometer operating in the Visible (600-800 nm, R~400). Its exquisite angular resolution (a sensitivity analysis of on-sky data shows that bright companions can be detected down to 0.25lambd
Externí odkaz:
http://arxiv.org/abs/2308.14292
Autor:
Vievard, Sébastien, Huby, Elsa, Lacour, Sylvestre, Guyon, Olivier, Cvetojevic, Nick, Jovanovic, Nemanja, Lozi, Julien, Barjot, Kevin, Deo, Vincent, Duchêne, Gaspard, Kotani, Takayuki, Marchis, Franck, Rouan, Daniel, Martin, Guillermo, Lallement, Manon, Lapeyrere, Vincent, Martinache, Frantz, Ahn, Kyohoon, Skaf, Nour, Tamura, Motohide, Yuen, Leilehua, Lozi, Leinani, Perrin, Guy
Publikováno v:
A&A 677, A84 (2023)
FIRST is a spectro-interferometer combining, in the visible, the techniques of aperture masking and spatial filtering thanks to single-mode fibers. This instrument aims to deliver high contrast capabilities at spatial resolutions that are inaccessibl
Externí odkaz:
http://arxiv.org/abs/2307.09746