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13 results on '"Shchekaturov, P."'

1. Estimation of the lateral mis-registrations of the GRAVITY + adaptive optics system

Author

Berdeu, Anthony, Bonnet, H., Bouquin, J. -B. Le, Édouard, C., Gomes, T., Shchekaturov, P., Dembet, R., Paumard, T., Oberti, S., Kolb, J., Millour, F., Berio, P., Lai, O., Eisenhauer, F., Garcia, P., Straubmeier, C., Kreidberg, L., Hönig, S., and Defrère, D.

Subjects
Electrical Engineering and Systems Science - Signal Processing, Astrophysics - Instrumentation and Methods for Astrophysics
Abstract

Context. The GRAVITY+ upgrade implies a complete renewal of its adaptive optics (AO) systems. Its complex design, featuring moving components between the deformable mirrors and the wavefront sensors, requires the monitoring and auto-calibrating of the lateral mis-registrations of the system while in operation. Aims. For preset and target acquisition, large lateral registration errors must be assessed in open loop to bring the system to a state where the AO loop closes. In closed loop, these errors must be monitored and corrected, without impacting the science. Methods. With respect to the first requirement, our method is perturbative, with two-dimensional modes intentionally applied to the system and correlated to a reference interaction matrix. For the second requirement, we applied a non-perturbative approach that searches for specific patterns in temporal correlations in the closed loop telemetry. This signal is produced by the noise propagation through the AO loop. Results. Our methods were validated through simulations and on the GRAVITY+ development bench. The first method robustly estimates the lateral mis-registrations, in a single fit and with a sub-subaperture resolution while in an open loop. The second method is not absolute, but it does successfully bring the system towards a negligible mis-registration error, with a limited turbulence bias. Both methods proved to robustly work on a system still under development and not fully characterised. Conclusions. Tested with Shack-Hartmann wavefront sensors, the proposed methods are versatile and easily adaptable to other AO instruments, such as the pyramid, which stands as a baseline for all future AO systems. The non-perturbative method, not relying on an interaction matrix model and being sparse in the Fourier domain, is particularly suitable to the next generation of AO systems for extremely large telescopes that will present an unprecedented level of complexity and numbers of actuators.

Published
2024
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2. High contrast at short separation with VLTI/GRAVITY: Bringing Gaia companions to light

Author

Pourré, N., Winterhalder, T. O., Bouquin, J. -B. Le, Lacour, S., Bidot, A., Nowak, M., Maire, A. -L., Mouillet, D., Babusiaux, C., Woillez, J., Abuter, R., Amorim, A., Asensio-Torres, R., Balmer, W. O., Benisty, M., Berger, J. -P., Beust, H., Blunt, S., Boccaletti, A., Bonnefoy, M., Bonnet, H., Bordoni, M. S., Bourdarot, G., Brandner, W., Cantalloube, F., Caselli, P., Charnay, B., Chauvin, G., Chavez, A., Choquet, E., Christiaens, V., Clénet, Y., Foresto, V. Coudé du, Cridland, A., Davies, R., Defrère, D., Dembet, R., Dexter, J., Drescher, A., Duvert, G., Eckart, A., Eisenhauer, F., Schreiber, N. M. Föster, Garcia, P., Lopez, R. Garcia, Gendron, E., Genzel, R., Gillessen, S., Girard, J. H., Gonte, F., Grant, S., Haubois, X., Heißel, G., Henning, Th., Hinkley, S., Hippler, S., Hönig, S. F., Houllé, M., Hubert, Z., Jocou, L., Kammerer, J., Kenworthy, M., Keppler, M., Kervella, P., Kreidberg, L., Kurtovic, N. T., Lagrange, A. -M., Lapeyrère, V., Lutz, D., Mang, F., Marleau, G. -D., Mérand, A., Millour, F., Mollière, P., Monnier, J. D., Mordasini, C., Nasedkin, E., Oberti, S., Ott, T., Otten, G. P. L., Paladini, C., Paumard, T., Perraut, K., Perrin, G., Pfuhl, O., Pueyo, L., Ribeiro, D. C., Rickman, E., Rustamkulov, Z., Shangguan, J., Shimizu, T., Sing, D., Soulez, F., Stadler, J., Stolker, T., Straub, O., Straubmeier, C., Sturm, E., Sykes, C., Tacconi, L. J., van Dishoeck, E. F., Vigan, A., Vincent, F., von Fellenberg, S. D., Wang, J., Widmann, F., Yazici, S., Collaboration, the GRAVITY, Abad, J. A., Carpentier, E. Aller, Alonso, J., Andolfato, L., Barriga, P., Beuzit, J. -L., Bourget, P., Brast, R., Caniguante, L., Cottalorda, E., Darré, P., Delabre, B., Delboulbé, A., Delplancke-Ströbele, F., Donaldson, R., Dorn, R., Dupuy, C., Egner, S., Fischer, G., Frank, C., Fuenteseca, E., Gitton, P., Guerlet, T., Guieu, S., Gutierrez, P., Haguenauer, P., Haimerl, A., Heritier, C. T., Huber, S., Hubin, N., Jolley, P., Kirchbauer, J. -P., Kolb, J., Kosmalski, J., Krempl, P., Louarn, M. Le, Lilley, P., Lopez, B., Magnard, Y., Mclay, S., Meilland, A., Meister, A., Moulin, T., Pasquini, L., Paufique, J., Percheron, I., Pettazzi, L., Phan, D., Pirani, W., Quentin, J., Rakich, A., Ridings, R., Reyes, J., Rochat, S., Schmid, C., Schuhler, N., Shchekaturov, P., Seidel, M., Soenke, C., Stadler, E., Stephan, C., Suárez, M., Todorovic, M., Valdes, G., Verinaud, C., Zins, G., Zúñiga-Fernández, S., and Collaboration, the NAOMI

Subjects
Astrophysics - Instrumentation and Methods for Astrophysics, Astrophysics - Earth and Planetary Astrophysics, Astrophysics - Solar and Stellar Astrophysics
Abstract

Since 2019, GRAVITY has provided direct observations of giant planets and brown dwarfs at separations of down to 95 mas from the host star. Some of these observations have provided the first direct confirmation of companions previously detected by indirect techniques (astrometry and radial velocities). We want to improve the observing strategy and data reduction in order to lower the inner working angle of GRAVITY in dual-field on-axis mode. We also want to determine the current limitations of the instrument when observing faint companions with separations in the 30-150 mas range. To improve the inner working angle, we propose a fiber off-pointing strategy during the observations to maximize the ratio of companion-light-to-star-light coupling in the science fiber. We also tested a lower-order model for speckles to decouple the companion light from the star light. We then evaluated the detection limits of GRAVITY using planet injection and retrieval in representative archival data. We compare our results to theoretical expectations. We validate our observing and data-reduction strategy with on-sky observations; first in the context of brown dwarf follow-up on the auxiliary telescopes with HD 984 B, and second with the first confirmation of a substellar candidate around the star Gaia DR3 2728129004119806464. With synthetic companion injection, we demonstrate that the instrument can detect companions down to a contrast of $8\times 10^{-4}$ ($\Delta \mathrm{K}= 7.7$ mag) at a separation of 35 mas, and a contrast of $3\times 10^{-5}$ ($\Delta \mathrm{K}= 11$ mag) at 100 mas from a bright primary (K<6.5), for 30 min exposure time. With its inner working angle and astrometric precision, GRAVITY has a unique reach in direct observation parameter space. This study demonstrates the promising synergies between GRAVITY and Gaia for the confirmation and characterization of substellar companions., Comment: 16 pages, 14 figures. Submitted to A&A

Published
2024

3. A dynamical measure of the black hole mass in a quasar 11 billion years ago

Author

Abuter, R., Allouche, F., Amorim, A., Bailet, C., Berdeu, A., Berger, J. -P., Berio, P., Bigioli, A., Boebion, O., Bolzer, M. -L., Bonnet, H., Bourdarot, G., Bourget, P., Brandner, W., Cao, Y., Conzelmann, R., Comin, M., Clénet, Y., Courtney-Barrer, B., Davies, R., Defrère, D., Delboulbé, A., Delplancke-Ströbele, F., Dembet, R., Dexter, J., de Zeeuw, P. T., Drescher, A., Eckart, A., Édouard, C., Eisenhauer, F., Fabricius, M., Feuchtgruber, H., Finger, G., Schreiber, N. M. Förster, Garcia, P., Lopez, R. Garcia, Gao, F., Gendron, E., Genzel, R., Gil, J. P., Gillessen, S., Gomes, T., Gonté, F., Gouvret, C., Guajardo, P., Guieu, S., Hackenberg, W., Haddad, N., Hartl, M., Haubois, X., Haußmann, F., Heißel, G., Henning, Th., Hippler, S., Hönig, S. F., Horrobin, M., Hubin, N., Jacqmart, E., Jocou, L., Kaufer, A., Kervella, P., Kolb, J., Korhonen, H., Lacour, S., Lagarde, S., Lai, O., Lapeyrère, V., Laugier, R., Bouquin, J. -B. Le, Leftley, J., Léna, P., Lewis, S., Liu, D., Lopez, B., Lutz, D., Magnard, Y., Mang, F., Marcotto, A., Maurel, D., Mérand, A., Millour, F., More, N., Netzer, H., Nowacki, H., Nowak, M., Oberti, S., Ott, T., Pallanca, L., Paumard, T., Perraut, K., Perrin, G., Petrov, R., Pfuhl, O., Pourré, N., Rabien, S., Rau, C., Riquelme, M., Robbe-Dubois, S., Rochat, S., Salman, M., Sanchez-Bermudez, J., Santos, D. J. D., Scheithauer, S., Schöller, M., Schubert, J., Schuhler, N., Shangguan, J., Shchekaturov, P., Shimizu, T. T., Sevin, A., Soulez, F., Spang, A., Stadler, E., Sternberg, A., Straubmeier, C., Sturm, E., Sykes, C., Tacconi, L. J., Tristram, K. R. W., Vincent, F., von Fellenberg, S., Uysal, S., Widmann, F., Wieprecht, E., Wiezorrek, E., Woillez, J., and Zins, G.

Subjects
Astrophysics - Astrophysics of Galaxies
Abstract

Tight relationships exist in the local universe between the central stellar properties of galaxies and the mass of their supermassive black hole. These suggest galaxies and black holes co-evolve, with the main regulation mechanism being energetic feedback from accretion onto the black hole during its quasar phase. A crucial question is how the relationship between black holes and galaxies evolves with time; a key epoch to probe this relationship is at the peaks of star formation and black hole growth 8-12 billion years ago (redshifts 1-3). Here we report a dynamical measurement of the mass of the black hole in a luminous quasar at a redshift of 2, with a look back time of 11 billion years, by spatially resolving the broad line region. We detect a 40 micro-arcsecond (0.31 pc) spatial offset between the red and blue photocenters of the H$\alpha$ line that traces the velocity gradient of a rotating broad line region. The flux and differential phase spectra are well reproduced by a thick, moderately inclined disk of gas clouds within the sphere of influence of a central black hole with a mass of 3.2x10$^{8}$ solar masses. Molecular gas data reveal a dynamical mass for the host galaxy of 6x10$^{11}$ solar masses, which indicates an under-massive black hole accreting at a super-Eddington rate. This suggests a host galaxy that grew faster than the supermassive black hole, indicating a delay between galaxy and black hole formation for some systems., Comment: 5 pages Main text, 8 figures, 2 tables, to be published in Nature, under embargo until 29 January 2024 16:00 (London)

Published
2024
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4. The GRAVITY+ Project: Towards All-sky, Faint-Science, High-Contrast Near-Infrared Interferometry at the VLTI

Author

Collaboration, GRAVITY, Abuter, Roberto, Alarcon, Patricio, Allouche, Fatme, Amorim, Antonio, Bailet, Christophe, Bedigan, Helen, Berdeu, Anthony, Berger, Jean-Philippe, Berio, Philippe, Bigioli, Azzurra, Blaho, Richard, Boebion, Olivier, Bolzer, Marie-Lena, Bonnet, Henri, Bourdarot, Guillaume, Bourget, Pierre, Brandner, Wolfgang, Cardenas, Cesar, Conzelmann, Ralf, Comin, Mauro, Clénet, Yann, Courtney-Barrer, Benjamin, Dallilar, Yigit, Davies, Ric, Defrère, Denis, Delboulbé, Alain, Delplancke-Ströbele, Françoise, Dembet, Roderick, de Zeeuw, Tim, Drescher, Antonia, Eckart, Andreas, Édouard, Clemence, Eisenhauer, Frank, Fabricius, Maximilian, Feuchtgruber, Helmut, Finger, Gert, Schreiber, Natascha M. Förster, Fuenteseca, Eloy, Garcia, Enrique, Garcia, Paulo, Gao, Feng, Gendron, Eric, Genzel, Reinhard, Gil, Juan Pablo, Gillessen, Stefan, Gomes, Tiago, Gonté, Frédéric, Gouvret, Carole, Guajardo, Patricia, Guidolin, Ivan, Guieu, Sylvain, Guzmann, Ronald, Hackenberg, Wolfgang, Haddad, Nicolas, Hartl, Michael, Haubois, Xavier, Haußmann, Frank, Heißel, Gernot, Henning, Thomas, Hippler, Stefan, Hönig, Sebastian, Horrobin, Matthew, Hubin, Norbert, Jacqmart, Estelle, Jocou, Laurent, Kaufer, Andreas, Kervella, Pierre, Kirchbauer, Jean-Paul, Kolb, Johan, Korhonen, Heidi, Kreidberg, Laura, Krempl, Peter, Lacour, Sylvestre, Lagarde, Stephane, Lai, Olivier, Lapeyrère, Vincent, Laugier, Romain, Bouquin, Jean-Baptiste Le, Leftley, James, Léna, Pierre, Lewis, Steffan, Lutz, Dieter, Magnard, Yves, Mang, Felix, Marcotto, Aurelie, Maurel, Didier, Mérand, Antoine, Millour, Florentin, More, Nikhil, Nowack, Hugo, Nowak, Matthias, Oberti, Sylvain, Olivares, Francisco, Ott, Thomas, Pallanca, Laurent, Paumard, Thibaut, Perraut, Karine, Perrin, Guy, Petrov, Romain, Pfuhl, Oliver, Pourré, Nicolas, Rabien, Sebastian, Rau, Christian, Riquelme, Miguel, Robbe-Dubois, Sylvie, Rochat, Sylvain, Salman, Muhammad, Scherbarth, Malte, Schöller, Markus, Schubert, Joseph, Schuhler, Nicolas, Shangguan, Jinyi, Shchekaturov, Pavel, Shimizu, Taro, Scheithauer, Silvia, Sevin, Arnaud, Soenke, Christian, Soulez, Ferreol, Spang, Alain, Stadler, Eric, Straubmeier, Christian, Sturm, Eckhard, Sykes, Calvin, Tacconi, Linda, Tischer, Helmut, Tristram, Konrad, Vincent, Frédéric, von Fellenberg, Sebastiano, Uysal, Sinem, Widmann, Felix, Wieprecht, Ekkehard, Wiezorrek, Erich, Woillez, Julien, Yazıcı, Şenol, and Zins, Gérard

Subjects
Astrophysics - Instrumentation and Methods for Astrophysics
Abstract

The GRAVITY instrument has been revolutionary for near-infrared interferometry by pushing sensitivity and precision to previously unknown limits. With the upgrade of GRAVITY and the Very Large Telescope Interferometer (VLTI) in GRAVITY+, these limits will be pushed even further, with vastly improved sky coverage, as well as faint-science and high-contrast capabilities. This upgrade includes the implementation of wide-field off-axis fringe-tracking, new adaptive optics systems on all Unit Telescopes, and laser guide stars in an upgraded facility. GRAVITY+ will open up the sky to the measurement of black hole masses across cosmic time in hundreds of active galactic nuclei, use the faint stars in the Galactic centre to probe General Relativity, and enable the characterisation of dozens of young exoplanets to study their formation, bearing the promise of another scientific revolution to come at the VLTI., Comment: Published in the ESO Messenger

Published
2023
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5. NAOMI: the adaptive optics system of the Auxiliary Telescopes of the VLTI

Author

J., Woillez, A., Abad J., R., Abuter, E., Aller Carpentier, J., Alonso, L., Andolfato, P., Barriga, -P., Berger J., -L., Beuzit J., H., Bonnet, G., Bourdarot, P., Bourget, R., Brast, L., Caniguante, E., Cottalorda, P., Darré, B., Delabre, A., Delboulbé, F., Delplancke-Ströbele, R., Dembet, R., Donaldson, R., Dorn, J., Dupeyron, C., Dupuy, S., Egner, F., Eisenhauer, G., Fischer, C., Frank, E., Fuenteseca, P., Gitton, F., Gonté, T., Guerlet, S., Guieu, P., Gutierrez, P., Haguenauer, A., Haimerl, X., Haubois, C., Heritier, S., Huber, N., Hubin, P., Jolley, L., Jocou, -P., Kirchbauer J., J., Kolb, J., Kosmalski, P., Krempl, -B., Le Bouquin J., M., Le Louarn, P., Lilley, B., Lopez, Y., Magnard, S., Mclay, A., Meilland, A., Meister, A., Merand, T., Moulin, L., Pasquini, J., Paufique, I., Percheron, L., Pettazzi, O., Pfuhl, D., Phan, W., Pirani, J., Quentin, A., Rakich, R., Ridings, M., Riedel, J., Reyes, S., Rochat, G., Santos Tomás, C., Schmid, N., Schuhler, P., Shchekaturov, M., Seidel, C., Soenke, E., Stadler, C., Stephan, M., Suárez, M., Todorovic, G., Valdes, C., Verinaud, G., Zins, and S, Zúñiga-Fernández

Subjects
Astrophysics - Instrumentation and Methods for Astrophysics
Abstract

The tip-tilt stabilisation system of the 1.8 m Auxiliary Telescopes of the Very Large Telescope Interferometer was never dimensioned for robust fringe tracking, except when atmospheric seeing conditions are excellent. Increasing the level of wavefront correction at the telescopes is expected to improve the coupling into the single-mode fibres of the instruments, and enable robust fringe tracking even in degraded conditions. We deployed a new adaptive optics module for interferometry (NAOMI) on the Auxiliary Telescopes. We present its design, performance, and effect on the observations that are carried out with the interferometric instruments., Comment: 10 pages, 18 figures, 2 tables, A&A forthcoming

Published
2019
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6. Estimation of the lateral mis-registrations of the GRAVITY+ adaptive optics system. Perturbative method with open-loop modal correlation and non-pertubative method with temporal correlation of closed-loop telemetry

Author

Berdeu, A., primary, Bonnet, H., additional, Le Bouquin, J.-B., additional, Édouard, C., additional, Gomes, T., additional, Shchekaturov, P., additional, Dembet, R., additional, Paumard, T., additional, Oberti, S., additional, Kolb, J., additional, Millour, F., additional, Berio, P., additional, Lai, O., additional, Eisenhauer, F., additional, Garcia, P., additional, Straubmeier, C., additional, Kreidberg, L., additional, Hönig, S.F., additional, and Defrère, D., additional

Published
2024
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7. Estimation of the lateral mis-registrations of the GRAVITY+ adaptive optics system: Perturbative method with open-loop modal correlation and non-perturbative method with temporal correlation of closed-loop telemetry.

Author

Berdeu, A., Bonnet, H., Le Bouquin, J.-B., Édouard, C., Gomes, T., Shchekaturov, P., Dembet, R., Paumard, T., Oberti, S., Kolb, J., Millour, F., Berio, P., Lai, O., Eisenhauer, F., Garcia, P., Straubmeier, C., Kreidberg, L., Hönig, S. F., and Defrère, D.

Subjects
ADAPTIVE optics, TARGET acquisition, NUMERICAL analysis, TELEMETRY, TELESCOPES, WAVEFRONT sensors
Abstract

Context. The GRAVITY+ upgrade implies a complete renewal of its adaptive optics (AO) systems. Its complex design, featuring moving components between the deformable mirrors and the wavefront sensors, requires the monitoring and auto-calibrating of the lateral mis-registrations of the system while in operation. Aims. For preset and target acquisition, large lateral registration errors must be assessed in open loop to bring the system to a state where the AO loop closes. In closed loop, these errors must be monitored and corrected, without impacting the science. Methods. With respect to the first requirement, our method is perturbative, with two-dimensional modes intentionally applied to the system and correlated to a reference interaction matrix. For the second requirement, we applied a non-perturbative approach that searches for specific patterns in temporal correlations in the closed loop telemetry. This signal is produced by the noise propagation through the AO loop. Results. Our methods were validated through simulations and on the GRAVITY+ development bench. The first method robustly estimates the lateral mis-registrations, in a single fit and with a sub-subaperture resolution while in an open loop. The second method is not absolute, but it does successfully bring the system towards a negligible mis-registration error, with a limited turbulence bias. Both methods proved to robustly work on a system still under development and not fully characterised. Conclusions. Tested with Shack-Hartmann wavefront sensors, the proposed methods are versatile and easily adaptable to other AO instruments, such as the pyramid, which stands as a baseline for all future AO systems. The non-perturbative method, not relying on an interaction matrix model and being sparse in the Fourier domain, is particularly suitable to the next generation of AO systems for extremely large telescopes that will present an unprecedented level of complexity and numbers of actuators. [ABSTRACT FROM AUTHOR]

Published
2024
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9. GRAVITY+ adaptive optics (GPAO) tests in Europe

Author

Kammerer, Jens, Sallum, Stephanie, Sanchez-Bermudez, Joel, Millour, Florentin, Bourdarot, Guillaume, Le Bouquin, Jean-Baptiste, Berdeu, Anthony, Houllé, Mathis, Berio, Philippe, Paumard, Thibaut, Defrère, Denis, Garcia, Paulo, Soulez, Ferreol, Hoenig, Sebastian, Allouche, Fatmé, Bachbucher, Martin, Bailet, Christophe, Blanchard, Cyrille, Boebion, Olivier, Bonnet, Henri, Brara, Amit, Carbillet, Marcel, Czempiel, Stephan, Delboulbé, Alain, Dembet, Roderick, Edouard, Clémence, Eisenhauer, Frank, Feuchtgruber, Helmut, Furchstsam, Christoph, Gillessen, Stefan, Goldbrunner, Armin, Gomes, Tiago, Gouvvret, Carole, Guieu, Sylvain, Hartl, Mike, Hartwig, Johannes, Haussmann, Frank, Huber, David, Ibn Taïeb, Ihsan, Kolb, Johann, Lagarde, Stéphane, Lai, Olivier, Leftley, James, Lutz, Dieter, Magnard, Yves, Marcotto, Aurélie, Nowacki, Hugo, Oberti, Sylvain, Ott, Thomas, Rau, Christian, Robbe-Dubois, Sylvie, Scigliuto, Jules, Soller, Franz, Shchekaturov, Pavel, Schuppe, Daniel, Stadler, Eric, Uysal, Sinem, Widmann, Felix, Wieprecht, Ekherhard, Woillez, Julien, and Yazici, Şenol

Published
2024
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10. NAOMI: the adaptive optics system of the Auxiliary Telescopes of the VLTI

Author

Woillez, J., primary, Abad, J. A., additional, Abuter, R., additional, Aller Carpentier, E., additional, Alonso, J., additional, Andolfato, L., additional, Barriga, P., additional, Berger, J.-P., additional, Beuzit, J.-L., additional, Bonnet, H., additional, Bourdarot, G., additional, Bourget, P., additional, Brast, R., additional, Caniguante, L., additional, Cottalorda, E., additional, Darré, P., additional, Delabre, B., additional, Delboulbé, A., additional, Delplancke-Ströbele, F., additional, Dembet, R., additional, Donaldson, R., additional, Dorn, R., additional, Dupeyron, J., additional, Dupuy, C., additional, Egner, S., additional, Eisenhauer, F., additional, Fischer, G., additional, Frank, C., additional, Fuenteseca, E., additional, Gitton, P., additional, Gonté, F., additional, Guerlet, T., additional, Guieu, S., additional, Gutierrez, P., additional, Haguenauer, P., additional, Haimerl, A., additional, Haubois, X., additional, Heritier, C., additional, Huber, S., additional, Hubin, N., additional, Jolley, P., additional, Jocou, L., additional, Kirchbauer, J.-P., additional, Kolb, J., additional, Kosmalski, J., additional, Krempl, P., additional, Le Bouquin, J.-B., additional, Le Louarn, M., additional, Lilley, P., additional, Lopez, B., additional, Magnard, Y., additional, Mclay, S., additional, Meilland, A., additional, Meister, A., additional, Merand, A., additional, Moulin, T., additional, Pasquini, L., additional, Paufique, J., additional, Percheron, I., additional, Pettazzi, L., additional, Pfuhl, O., additional, Phan, D., additional, Pirani, W., additional, Quentin, J., additional, Rakich, A., additional, Ridings, R., additional, Riedel, M., additional, Reyes, J., additional, Rochat, S., additional, Santos Tomás, G., additional, Schmid, C., additional, Schuhler, N., additional, Shchekaturov, P., additional, Seidel, M., additional, Soenke, C., additional, Stadler, E., additional, Stephan, C., additional, Suárez, M., additional, Todorovic, M., additional, Valdes, G., additional, Verinaud, C., additional, Zins, G., additional, and Zúñiga-Fernández, S., additional

Published
2019
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11. NAOMI: the adaptive optics for the auxiliary telescopes of VLTI

Author

Creech-Eakman, Michelle J., Tuthill, Peter G., Mérand, Antoine, Gonté, Frédéric, Egner, Sebastien, Haguenauer, Pierre, Woillez, Julien, Aller-Carpentier, Emmanuel, Alonso, Jaime, Andolfato, Luigi, Bourget, Pierre, Darré, Pascaline, Dembet, Roderick, Dupuy, Christophe, Gutierrez, Pablo, Huber, Stefan, Hubin, Norbert, Kirchbauer, Jean-Paul, Kolb, Johann, Kosmalski, Johan, Meister, Alexander, Pasquini, Luca, Reyes, Javier, Shchekaturov, Pavel, Schuhler, Nicolas, Stephan, Christian, Valdes, Guillermo, Vérinaud, Christophe, Berger, Jean-Philippe, Le Bouquin, Jean-Baptiste, Guieu, Sylvain, Delboulbé, Alain, Jocou, Laurent, Magnard, Yves, Moulin, Thibaut, Rochat, Sylvain, Stadler, Eric, and Krempl, Peter

Published
2018
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12. VLTI status update: tapping into a powerful second-generation instrumentation

Author

Tuthill, Peter G., Mérand, Antoine, Sallum, Stephanie, Haubois, Xavier, Abuter, Roberto, Aller-Carpentier, Emmanuel, Alonso, Jaime, Beltran, Juan, Berger, Jean-Philippe, Bourget, Pierre, Bristow, Paul, Caniguante, Luis, Chazelas, Bruno, Cid, Claudia, Conzelmann, Ralf, Cortes, Angela, Darré, Pascaline, Delboulbé, Alain, Delplancke-Ströbele, Françoise, Del Valle, Diego, Dembet, Roderick, Donoso, Reinaldo, Dupuy, Christophe, Egner, Sebastien, Eisenhauer, Frank, Faundez, Lorena, Fuenteseca, Eloy, Frahm, Robert, Gaytan, Daniel, Gil, Juan Pablo, Glindemann, Andreas, Gonté, Frédéric, Gonzales, Jaime, Guajardo, Patricia, Guerlet, Thibaut, Guieu, Sylvain, Gutierrez, Pablo, Haguenauer, Pierre, van der Heyden, Pierre, Huber, Stefan, Hubin, Norbert, Hummel, Christian, Jochum, Lieselotte, Jocou, Laurent, Kirchbauer, Jean-Paul, Kolb, Johann, Kosmalski, Johan, Krempl, Peter, Lacour, Sylvestre, Le Bouquin, Jean-Baptiste, Leclercq, Julien, Lizon, Jean Louis, Lopez, Bruno, Magnard, Yves, Meilland, Anthony, Meister, Alexander, Mérand, Antoine, Mieske, Steffen, Moulin, Thibaut, Osorio, Juan, Ott, Jürgen, Paladini, Claudia, Pallanca, Laurent, Pavez, Marcus, Pasquini, Luca, Pelluet, Célia, Percheron, Isabelle, Pettazzi, Lorenzo, Pino, Andrés, Poupar, Sébastien, Ramírez, Andrés, Reyes, Javier, Riquelme, Miguel, Rivinius, Thomas, Rochat, Sylvain, Salgado, Fernando, Schöller, Markus, Schuhler, Nicolas, Shchekaturov, Pavel, Stephan, Christian, Suarez, Marcos, Smette, Alain, Tamblay, Richard, Tapia, Mario, Tristram, Konrad, Valdes, Guillermo, Verinaud, Christophe, Wittkowski, Markus, Woillez, Julien, and Zins, Gérard

Published
2020
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13. VLTI status update: three years into the second generation

Author

Creech-Eakman, Michelle J., Tuthill, Peter G., Mérand, Antoine, Woillez, Julien, Darré, Pascaline, Egner, Sebastien, Gonté, Frédéric, Haubois, Xavier, Mérand, Antoine, Schuhler, Nicolas, Abad, José Antonio, Abuter, Roberto, Aller-Carpentier, Emmanuel, Alonso, Jaime, Andolfato, Luigi, Barriga, Pablo José, Beltran, Juan, Berger, Jean-Philippe, Bourget, Pierre, Brast, Roland, Bristow, Paul, Caniguante, Luis, Conzelmann, Ralf, Cortes, Angela, Delboulbé, Alain, Delplancke-Ströbele, Françoise, Del Valle, Diego, Dembet, Roderick, Derie, Frédéric, Donoso, Reinaldo, Duhoux, Philippe, Dupuy, Christophe, Förster, Andreas, Fuenteseca, Eloy, Frahm, Robert, Gaytan, Daniel, Glindemann, Andreas, Gonzales, Jaime, Guerlet, Thibaut, Guieu, Sylvain, Guisard, Stéphane, Gutierrez, Pablo, Haguenauer, Pierre, Haimerl, Andreas, van der Heyden, Pierre, Huber, Stefan, Hubin, Norbert, Jochum, Lieselotte, Jocou, Laurent, Jolley, Paul, Kirchbauer, Jean-Paul, Kolb, Johann, Kosmalski, Johan, Krempl, Peter, Le Bouquin, Jean-Baptiste, Lévêque, Samuel, Lilley, Paul, Lizon, Jean Louis, Magnard, Yves, Mardones, Pedro, Meister, Alexander, Moulin, Thibaut, Osorio, Juan, Ott, Jürgen, Pallanca, Laurent, Paufique, Jérôme, Pavez, Marcus, Pasquini, Luca, Percheron, Isabelle, Pettazzi, Lorenzo, Phan Duc, Thanh, Pirard, Jean Francois, Pino, Andres, Poupar, Sébastien, Quentin, Jutta, Ramírez, Andres, Reyes, Javier, Ridings, Robert, Rochat, Sylvain, Rivinius, Thomas, Salgado, Fernando, Schöller, Markus, Shchekaturov, Pavel, Stephan, Christian, Suarez, Marcos, Tamblay, Richard, Tapia, Mario, Tristram, Konrad, Valdes, Guillermo, Verinaud, Christophe, de Wit, Willem-Jan, and Zins, Gérard

Published
2018
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