Dr. Gerardo Ávila Profile

Dr. Gerardo Ávila

Physicist at Baader Planetarium

SPIE Involvement:

Author

Publications (69)

Proceedings Article | 8 September 2022 Paper

MARVEL: optical fiber link

Gerardo Avila, Gert Raskin, Christian Schwab, Jacob Pember, Bart Vandenbussche, Hans Van Winckel, Carlos Guirao, Roman Guemperlein, Julian Stürmer

Proceedings Volume 12184, 121844G (2022) https://doi.org/10.1117/12.2627382

KEYWORDS: Telescopes, Seaborgium, Spectrographs, Near field, Fiber couplers, Vignetting, Silica, Polishing, Stars, Optical fibers

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Proceedings Article | 29 August 2022 Presentation

MARVEL: the Mercator radial-velocity facility

Gert Raskin, Jacob Pember, Christian Schwab, Bart Vandenbussche, Gerardo Avila, Julian Stürmer, Hans Van Winckel, Denis Defrère, Pierre Royer, Andrew Tkachenko, Joris De Ridder, Hugues Sana, Joel Harman, William Humphreys, Robyn Sharman, Chris Waring, Alistair Glasse

Proceedings Volume 12184, 121841L (2022) https://doi.org/10.1117/12.2627381

KEYWORDS: Telescopes, Stars, Spectrographs, Robotics, Planets, Optical spectroscopy, Optical fibers, Observatories, Lanthanum, Exoplanets

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Proceedings Article | 5 August 2022 Poster + Paper

ESPRESSO Fiber-Link upgrade II: Optomechanical design

Edoardo Maria Alberto Redaelli, Matteo Aliverti, Matteo Genoni, Giorgio Pariani, Luca Oggioni, Marco Riva, Gerardo Avila, Bruno Chazelas, Ian Hughes, Francesco Pepe, Denis Mégevand

Proceedings Volume 11447, 114473S (2022) https://doi.org/10.1117/12.2562506

KEYWORDS: Spectrographs, Telescopes, Mirrors, Interfaces, Mechanical engineering, Glasses, Optomechanical design, Optics manufacturing, Optical design, Optical alignment

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Proceedings Article | 28 December 2020 Poster + Paper

ESPRESSO fiber-Link upgrade: III - alignment and integration activities

Matteo Aliverti, Giorgio Pariani, Gerardo Avila, Luca Oggioni, Edoardo Maria Alberto Redaelli, Marco Riva, Francesco Pepe, Ian Huges, Denis Megèvand, Bruno Chazelas, Felix Garcia Temich, Jose Luis Rasilla

Proceedings Volume 11447, 114474I (2020) https://doi.org/10.1117/12.2562129

KEYWORDS: Telescopes, Spectrographs, Super resolution

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Proceedings Article | 13 December 2020 Poster + Paper

A novel method for on-sky measurements of atmospheric dispersion

B. Wehbe, A. Cabral, G. Àvila

Proceedings Volume 11447, 114476R (2020) https://doi.org/10.1117/12.2561411

KEYWORDS: Atmospheric modeling, Zemax, Refractor telescopes, Telescopes, Refraction, Point spread functions, Spectroscopy, Data acquisition, Spectrographs

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Proceedings Article | 13 December 2020 Poster + Paper

MARVEL, a four-telescope array for high-precision radial-velocity monitoring

G. Raskin, C. Schwab, B. Vandenbussche, J. De Ridder, C. Lanthermann, J. Pérez Padilla, A. Tkachenko, H. Sana, P. Royer, S. Prins, L. Decin, D. Defrère, J. Pember, D. Atkinson, A. Glasse, D. Pollacco, G. Tinetti, M. Guedel, J. Stuermer, I. Ribas, A. Brandeker, L. Buchhave, S. Halverson, G. Avila, J. Morren, H. Van Winckel

Proceedings Volume 11447, 114473K (2020) https://doi.org/10.1117/12.2560895

KEYWORDS: Exoplanets, Stars, Atmospheric optics, Planets, Velocity measurements, Spectroscopic atmospheric monitoring techniques, Telescopes, Solar system, Infrared spectroscopy, Photometry

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Proceedings Article | 13 December 2020 Poster + Paper

ESPRESSO Fiber-Link upgrade. I: project overview and performances

M. Genoni, G. Pariani, G. Avila, M. Aliverti, L. Oggioni, E. M. A. Redaelli, M. Riva, F. Pepe, I. Hughes, D. Megèvand, B. Chazelas, F. G. Temich, J. L. Rasilla

Proceedings Volume 11447, 114473G (2020) https://doi.org/10.1117/12.2561464

KEYWORDS: Optical design, Spectrographs, Super resolution, Observatories, Optomechanical design, Reliability

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Proceedings Article | 3 October 2019 Paper

Atmospheric dispersion correction: model requirements and impact on radial velocity measurements

B. Wehbe, A. Cabral, P. Figueira, G. Ávila

Proceedings Volume 11207, 112070U (2019) https://doi.org/10.1117/12.2527256

KEYWORDS: Atmospheric modeling, Data modeling, Atmospheric corrections, Spectrographs, Dispersion, Data archive systems, Instrument modeling, Telescopes, Prisms, Data analysis

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Proceedings Article | 3 October 2019 Paper

ESPRESSO Coudé-Train: ESO's VLT working as 16-metre telescope

Alexandre Cabral, Manuel Abreu, João Coelho, Gerardo Ávila, Marco Riva, Denis Mégevand, Nuno Santos, Francesco Pepe

Proceedings Volume 11207, 112070V (2019) https://doi.org/10.1117/12.2527260

KEYWORDS: Telescopes, Prisms, Lenses, Mirrors, Spectrographs, Beam splitters, Image quality, Optical components, Observatories

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Proceedings Article | 3 October 2019 Paper

The development of an optical design tool for atmospheric dispersion correction

B. Wehbe, A. Cabral, G. Ávila

Proceedings Volume 11207, 112070P (2019) https://doi.org/10.1117/12.2527103

KEYWORDS: Glasses, Prisms, Atmospheric modeling, Atmospheric corrections, Atmospheric optics, Optical design, Spectrographs, Large telescopes, Telescopes, Astronomy

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Proceedings Article | 10 July 2018 Presentation + Paper

Merging light beams from the 4 VLT telescopes

Felix Gracia Temich, José Luis Rasilla, Sergio Salata, Francesco Pepe, Gerardo Avila, Denis Mégevand, Rafael Rebolo, Marco Riva

Proceedings Volume 10706, 1070628 (2018) https://doi.org/10.1117/12.2312032

KEYWORDS: Telescopes, Spectrographs, Lenses, Near field optics, Near field, Optical fibers, Image quality, Camera shutters, Microlens, CCD cameras

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Proceedings Article | 8 July 2018 Paper

A fibre scrambling unit for the laser frequency comb of ESPRESSO

Christoph Frank, Florian Kerber, Gerardo Avila, Nicola Di Lieto, Gaspare Lo Curto, Antonio Manescau

Proceedings Volume 10702, 107026P (2018) https://doi.org/10.1117/12.2313484

KEYWORDS: Calibration, Spectrographs, Frequency combs, Observatories, Computer aided design, Exoplanets, Astronomy, Lamps, Light sources

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Proceedings Article | 9 August 2016 Paper

Relative stability of two laser frequency combs for routine operation on HARPS and FOCES

Rafael Probst, Gaspare Lo Curto, Gerardo Ávila, Anna Brucalassi, Bruno Canto Martins, Izan de Castro Leão, Massimiliano Esposito, Jonay González Hernández, Frank Grupp, Theodor Hänsch, Ronald Holzwarth, Hanna Kellermann, Florian Kerber, Olaf Mandel, Antonio Manescau , Luca Pasquini, Eszter Pozna, Rafael Rebolo, José Renan de Medeiros, Sebastian Stark, Tilo Steinmetz, Alejandro Suárez Mascareño, Thomas Udem, Josefina Urrutia, Yuanjie Wu

Proceedings Volume 9908, 990864 (2016) https://doi.org/10.1117/12.2231434

KEYWORDS: Spectrographs, Calibration, Frequency combs, Astronomy, Observatories, Multimode fibers, Telescopes, Lanthanum, Lamps, Precision calibration

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Proceedings Article | 4 August 2016 Paper

An overview of the mid-infrared spectro-interferometer MATISSE: science, concept, and current status

A. Matter, B. Lopez, P. Antonelli, M. Lehmitz, F. Bettonvil, U. Beckmann, S. Lagarde, W. Jaffe, R. Petrov, P. Berio, F. Millour, S. Robbe-Dubois, A. Glindemann, P. Bristow, M. Schoeller, T. Lanz, T. Henning, G. Weigelt, M. Heininger, S. Morel, P. Cruzalebes, K. Meisenheimer, R. Hofferbert, S. Wolf, Y. Bresson, T. Agocs, F. Allouche, J.-C. Augereau, G. Avila, C. Bailet, J. Behrend, G. van Belle, J.-P. Berger, R. van Boekel, P. Bourget, R. Brast, J.-M. Clausse, C. Connot, R. Conzelmann, G. Csepany, W. Danchi, M. Delbo, C. Dominik, A. van Duin, E. Elswijk, Y. Fantei, G. Finger, A. Gabasch, F. Gonté, U. Graser, F. Guitton, S. Guniat, M. De Haan, P. Haguenauer, H. Hanenburg, K.-H. Hofmann, M. Hogerheijde, R. ter Horst, J. Hron, C Hummel, J. Isderda, D. Ives, G. Jakob, A. Jasko, P. Jolley, S. Kiraly, J. Kragt, T. Kroener, G. Kroes, S. Kuindersma, L. Labadie, W. Laun, C. Leinert, J.-L. Lizon, C. Lucuix, A. Marcotto, F. Martinache, G. Martinot-Lagarde, N. Mauclert, L. Mehrgan, A. Meilland, M. Mellein, S. Menardi, A. Merand, U. Neumann, E. Nussbaum, S. Ottogalli, R. Palsa, J. Panduro, E. Pantin, I. Percheron, T. Phan Duc, J.-U. Pott, E. Pozna, R. Roelfsema, G. Rupprecht, D. Schertl, C. Schmidt, M. Schuil, A. Spang, J. Stegmeier, N. Tromp, F. Vakili, M. Vannier, K. Wagner, L. Venema, J. Woillez

Proceedings Volume 9907, 99070A (2016) https://doi.org/10.1117/12.2233052

KEYWORDS: Mid-IR, Interferometry, Telescopes, Signal detection, Sensors, Stars, Spectral resolution, Fourier transforms, L band, Cameras

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Proceedings Article | 4 August 2016 Paper

VLT interferometer upgrade for the 2nd generation of interferometric instruments

Frederic Gonté, Julien Woillez, Nicolas Schuhler, Sebastian Egner, Antoine Merand, José Antonio Abad, Sergio Abadie, Roberto Abuter, Margarita Acuña, Fatmé Allouche, Jaime Alonso, Luigi Andolfalto, Pierre Antonelli, Gerardo Avila, Pablo José Barriga, Juan Beltran, Jean-Philippe Berger, Carlos Bolados, Henri Bonnet, Pierre Bourget, Roland Brast, Paul Bristow, Luis Caniguante, Roberto Castillo, Ralf Conzelmann, Angela Cortes, Françoise Delplancke, Diego Del Valle, Frederic Derie, Alvaro Diaz, Reinaldo Donoso, Reinhold Dorn, Philippe Duhoux, Christophe Dupuy, Frank Eisenhauer, Christian Elao, Eloy Fuenteseca, Ruben Fernandez, Daniel Gaytan, Andreas Glindemann, Jaime Gonzales, Sylvain Guieu, Stephane Guisard, Pierre Haguenauer, Andreas Haimerl, Volker Heinz, Juan Pablo Henriquez, P. van der Heyden, Norbert Hubin, Rodrigo Huerta, Lieselotte Jochum, Alfredo Leiva, Samuel Lévêque, Jean-Louis Lizon, Fernando Luco, Pedro Mardones, Angel Mellado, Juan Osorio, Jürgen Ott, Laurent Pallanca, Marcus Pavez, Luca Pasquini, Isabelle Percheron, Jean-Francois Pirard, Duc Than Phan, Juan Carlos Pineda, Andres Pino, Sebastien Poupar, Andres Ramírez, Claudio Reinero, Miguel Riquelme, Juan Romero, Thomas Rivinius, Chester Rojas, Felix Rozas, Fernando Salgado, Silvia Scheithauer, Christian Schmid, Markus Schöller, Waldo Siclari, Christian Stephan, Richard Tamblay, Mario Tapia, Konrad Tristram, Guillermo Valdes, Willem-Jan de Wit, Andrew Wright, Gerard Zins

Proceedings Volume 9907, 99071Z (2016) https://doi.org/10.1117/12.2233350

KEYWORDS: Interferometry, Adaptive optics, Telescopes, Interferometers, Stars, Infrared radiation, Interferometry, Astatine, Mirrors, Mid-IR, Sensors

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Proceedings Article | 22 July 2016 Paper

Alignment of the ESPRESSO Coudé train on the ESO VLT

Gerardo Avila, Alexandre Cabral, Joao Pinto Coelho, Pedro Santos, Catarina Silva, Bernard Delabre, Denis Megevand, Manuel Abreu, Antonio Oliveira, Marco Riva, M. Aliverti, G. Pariani

Proceedings Volume 9912, 99124L (2016) https://doi.org/10.1117/12.2231597

KEYWORDS: Optical alignment, Telescopes, Spectrographs, Tolerancing, Prisms, Beam splitters, Cameras, Image quality, Mirrors, Laser video displays

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Proceedings Article | 22 July 2016 Paper

Design, development, and performance of the fibres of MOONS

Isabelle Guinouard, Gerardo Avila, David Lee, Jean-Philippe Amans, Phil Rees, William Taylor, Ernesto Oliva

Proceedings Volume 9912, 99125G (2016) https://doi.org/10.1117/12.2231413

KEYWORDS: Spectrographs, Optical instrument design, Astronomical imaging, Large telescopes, Microlens, Prototyping, Connectors, Manufacturing, Telescopes, Cladding

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Proceedings Article | 28 July 2014 Paper

ESPRESSO Coudé-Train: complexities of a simultaneous optical feeding from the four VLT unit telescopes

Alexandre Cabral, Manuel Abreu, João Coelho, Ricardo Gomes, Manuel Monteiro, António Oliveira, Pedro Santos, Gerardo Ávila, Bernard-Alexis Delabre, Marco Riva, Paolo Di Marcantonio, Igor Coretti, Nuno Santos, Filippo Zerbi, Denis Mégevand

Proceedings Volume 9147, 91478Q (2014) https://doi.org/10.1117/12.2055876

KEYWORDS: Prisms, Telescopes, Spectrographs, Mirrors, Lenses, Optics manufacturing, Control systems, Chromium, Atmospheric optics, Optical design

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Proceedings Article | 24 July 2014 Paper

MATISSE status report and science forecast

B. Lopez, S. Lagarde, W. Jaffe, R. Petrov, M. Schöller, P. Antonelli, U. Beckman, Ph. Bério, F. Bettonvil, U. Graser, F. Millour, S. Robbe-Dubois, L. Venema, S. Wolf, P. Bristow, A. Glindemann, J.-C. Gonzalez, Th. Lanz, T. Henning, G. Weigelt, T. Agócs, J.-C. Augereau, G. Ávila, C. Bailet, J. Behrend, J.-P. Berger, Roy von Boekel, S. Bonhomme, P. Bourget, R. Brast, Y. Bresson, J. Clausse, O. Chesneau, G. Csépány, C. Connot, A. Crida, W. Danchi, M. Delbo , F. Delplancke, C. Dominik, M. Dugué, E. Elswijk, Y. Fanteï, G. Finger, A. Gabasch, P. Girard, V. Girault, P. Gitton, A. Glazenborg, F. Gonté, F. Guitton, S. Guniat, M. De Haan, P. Haguenauer, H. Hanenburg, M. Heininger, K.-H. Hofmann, M. Hogerheijde, R. ter Horst, J. Hron, Y. Hughes, D. Ives, G. Jakob, A. Jaskó, P. Jolley, J. Kragt, R. Köhler, T. Kroener, G. Kroes, L. Labadie, W. Laun, M. Lehmitz, Ch. Leinert, J. Lizon, Ch. Lucuix, A. Marcotto, F. Martinache, A. Matter, G. Martinot-Lagarde, N. Mauclert, L. Mehrgan, A. Meilland, M. Mellein, S. Ménardi, J. Menut, K. Meisenheimer, S. Morel, L. Mosoni, R. Navarro, U. Neumann, E. Nussbaum, S. Ottogalli, R. Palsa, J. Panduro, E. Pantin, I. Percheron, T. Phan Duc, J.-U. Pott, Eszter Pozna, F. Przygodda, A. Richichi, F. Rigal, G. Rupprecht, D. Schertl, J. Stegmeier, L. Thiam, N. Tromp, M. Vannier, F. Vakili, G. van Belle, K. Wagner, J. Woillez

Proceedings Volume 9146, 91460M (2014) https://doi.org/10.1117/12.2056419

KEYWORDS: Interferometry, Sensors, Mid-IR, Stars, Telescopes, Visibility, Planets, Spectral resolution, Photometry, Fourier transforms

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Proceedings Article | 8 July 2014 Paper

A laser frequency comb featuring sub-cm/s precision for routine operation on HARPS

Rafael Probst, Gaspare Lo Curto, Gerardo Avila, Bruno Canto Martins, José de Medeiros, Massimiliano Esposito, Jonay González Hernández, Theodor Hänsch, Ronald Holzwarth, Florian Kerber, Izan Leão, Antonio Manescau, Luca Pasquini, Rafael Rebolo-López, Tilo Steinmetz, Thomas Udem, Yuanjie Wu

Proceedings Volume 9147, 91471C (2014) https://doi.org/10.1117/12.2055784

KEYWORDS: Spectrographs, Continuous wave operation, Calibration, Optical filters, Frequency combs, Linear filtering, Astronomy, Fiber lasers, Charge-coupled devices, Fiber amplifiers

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Proceedings Article | 8 July 2014 Paper

ESPRESSO: the radial velocity machine for the VLT

Denis Mégevand, Filippo Zerbi, Paolo Di Marcantonio, Alexandre Cabral, Marco Riva, Manuel Abreu, Francesco Pepe, Stefano Cristiani, Rafael Rebolo Lopez, Nuno Santos, Hans Dekker, Matteo Aliverti, Carlos Allende, Manuel Amate, Gerardo Avila, Veronica Baldini, Timothy Bandy, Paul Bristow, Christopher Broeg, Roberto Cirami, João Coelho, Paolo Conconi, Igor Coretti, Guido Cupani, Valentina D'Odorico, Vincenzo De Caprio, Bernard Delabre, Reinhold Dorn, Pedro Figueira, Ana Fragoso, Samuele Galeotta, Ludovic Genolet, Ricardo Gomes, Jonay González Hernández, Ian Hughes, Olaf Iwert, Florian Kerber, Marco Landoni, Jean-Louis Lizon, Christophe Lovis, Charles Maire, Marco Mannetta, Carlos Martins, Paolo Molaro, Manuel Monteiro, Manuele Moschetti, Antonio Oliveira, Maria Rosa Zapatero Osorio, Ennio Poretti, José Rasilla, Samuel Santana Tschudi, Pedro Santos, Danuta Sosnowska, Sérgio Sousa, Fabio Tenegi, Giorgio Toso, Eros Vanzella, Matteo Viel

Proceedings Volume 9147, 91471H (2014) https://doi.org/10.1117/12.2055816

KEYWORDS: Spectrographs, Telescopes, Optical fibers, Sensors, Astronomy, Control systems, Observatories, Exoplanets, Calibration, Light

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Proceedings Article | 18 November 2013 Paper

Optical design of a Coudé-Train for a stable and efficient simultaneous feeding of the ESPRESSO spectrograph from the four VLT telescopes

Alexandre Cabral, João Coelho, Manuel Abreu, Manuel Monteiro, Ricardo Gomes, Pedro Santos, António Oliveira, Gerardo Ávila, Bernard-Alexis Delabre, Denis Mégevand, Filippo Zerbi, Paolo Di Marcantonio, Christophe Lovis, Nuno Santos

Proceedings Volume 8785, 87850L (2013) https://doi.org/10.1117/12.2026179

KEYWORDS: Prisms, Telescopes, Spectrographs, Lenses, Optical design, Atmospheric optics, Chromium, Control systems, Light sources, Interfaces

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Proceedings Article | 26 September 2013 Paper

ESPRESSO, an exo-Earths hunter for the VLT

Denis Mégevand, Filippo Zerbi, Paolo Di Marcantonio, Alexandre Cabral, Francesco Pepe, Stefano Cristiani, Rafael Rebolo, Nuno Santos, Hans Dekker, Manuel Abreu, Michael Affolter, Matteo Aliverti, Manuel Amate, Gerardo Avila, Veronica Baldini, Paul Bristow, Christopher Broeg, Roberto Cirami, João Coelho, Paolo Conconi, Igor Coretti, Guido Cupani, Valentina D'Odorico, Vincenzo De Caprio, Bernard Delabre, Reinhold Dorn, Pedro Figueira, Ana Fragoso, Samuele Galeotta, Ludovic Genolet, Ricardo Gomes, Jonay Gonzalez Hernandez, Ian Hughes, Olaf Iwert, Florian Kerber, Marco Landoni, Jean-Louis Lizon, Christophe Lovis, Charles Maire, Marco Mannetta, Carlos Martins, Paolo Molaro, Manuel Monteiro, Antonio Oliveira, Maria Rosa Zapatero Osorio, Ennio Poretti, José Luis Rasilla, Marco Riva, Samuel Santana Tschudi, Pedro Santos, Danuta Sosnowska, Sergio Sousa, Fabio Tenegi, Giorgio Toso, Eros Vanzella, Matteo Viel

Proceedings Volume 8864, 88640E (2013) https://doi.org/10.1117/12.2022520

KEYWORDS: Spectrographs, Stars, Telescopes, Planets, Galactic astronomy, Astronomy, Sensors, Exoplanets, Control systems, Observatories

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Proceedings Article | 24 September 2012 Paper

ESPRESSO: the ultimate rocky exoplanets hunter for the VLT

Denis Mégevand, Filippo Zerbi, Alexandre Cabral, Paolo Di Marcantonio, Manuel Amate, Francesco Pepe, Stefano Cristiani, Rafael Rebolo, Nuno Santos, Hans Dekker, Manuel Abreu, Michael Affolter, Gerardo Avila, Veronica Baldini, Paul Bristow, Christopher Broeg, Pedro Carvas, Roberto Cirami, João Coelho, Maurizio Comari, Paolo Conconi, Igor Coretti, Guido Cupani, Valentina D'Odorico, Vincenzo De Caprio, Bernard Delabre, Pedro Figueira, Michel Fleury, Ana Fragoso, Ludovic Genolet, Ricardo Gomes, Jonay Gonzalez Hernandez, Ian Hughes, Olaf Iwert, Florian Kerber, Marco Landoni, Jorge Lima, Jean-Louis Lizon, Christophe Lovis, Charles Maire, Marco Mannetta, Carlos Martins, André Moitinho, Paolo Molaro, Manuel Monteiro, José Luis Rasilla, Marco Riva, Samuel Santana Tschudi, Paolo Santin, Danuta Sosnowska, Sergio Sousa, Paolo Spanò, Fabio Tenegi, Giorgio Toso, Eros Vanzella, Matteo Viel, Maria Rosa Zapatero Osorio

Proceedings Volume 8446, 84461R (2012) https://doi.org/10.1117/12.924602

KEYWORDS: Spectrographs, Exoplanets, Telescopes, Astronomy, Planets, Optical fibers, Sensors, Observatories, Stars, Calibration

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Proceedings Article | 24 September 2012 Paper

High efficiency inexpensive 2-slices image slicers

Gerardo Avila, Carlos Guirao, Thomas Baader

Proceedings Volume 8446, 84469M (2012) https://doi.org/10.1117/12.927448

KEYWORDS: Mirrors, Spectrographs, Glasses, Reflection, Prisms, Prototyping, Spectral resolution, Manufacturing, Telescopes, Refractive index

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Proceedings Article | 24 September 2012 Paper

Achieving a few cm/sec calibration repeatability for high resolution spectrographs: the laser frequency comb on HARPS

Gaspare Lo Curto, Antonio Manescau, Gerardo Avila, Luca Pasquini, Tobias Wilken, Tilo Steinmetz, Ronald Holzwarth, Rafael Probst, Thomas Udem, Theodor Hänsch, Jonay González Hernández, Massimiliano Esposito, Rafael Rebolo, Bruno Canto Martins, Jose Renan de Medeiros

Proceedings Volume 8446, 84461W (2012) https://doi.org/10.1117/12.925964

KEYWORDS: Calibration, Spectrographs, Frequency combs, Stars, Telescopes, Planets, Lamps, Astronomy, Prototyping, High power fiber amplifiers

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Proceedings Article | 24 September 2012 Paper

FRD and scrambling properties of recent non-circular fibres

Gerardo Avila

Proceedings Volume 8446, 84469L (2012) https://doi.org/10.1117/12.927447

KEYWORDS: Spectrographs, Point spread functions, Stars, Near field optics, Near field, Cladding, Seaborgium, Optical fibers, Sensors, Shape memory alloys

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Proceedings Article | 17 September 2012 Paper

ESPRESSO: design and analysis of a Coudé-train for a stable and efficient simultaneous optical feeding from the four VLT unit telescopes

Alexandre Cabral, André Moitinho, João Coelho, Jorge Lima, Gerardo Ávila, Bernard-Alexis Delabre, Ricardo Gomes, Denis Mégevand, Filippo Zerbi, Paolo Di Marcantonio, Christophe Lovis, Nuno Santos

Proceedings Volume 8444, 84444F (2012) https://doi.org/10.1117/12.926093

KEYWORDS: Prisms, Telescopes, Optical fibers, Lenses, Spectrographs, Glasses, Chromium, Interfaces, Mirrors, Atmospheric optics

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Proceedings Article | 12 September 2012 Paper

Perspective of imaging in the mid-infrared at the Very Large Telescope Interferometer

B. Lopez, S. Lagarde, P. Antonelli, W. Jaffe, R. Petrov, L. Venema, Sylvie Robbe-Dubois, F. Bettonvil, P. Berio, R. Navarro, U. Graser, U. Beckman, G. Weigelt, F. Vakili, T. Henning, J.-C. Gonzales, S. Wolf, C. Bailet, J. Behrend, Y. Bresson, O. Chesneau, J. Clausse, C. Connot, M. Dugué, Y. Fantei, E. Elswijk, H. Hanenburg, K. Hofmann, M. Heininger, R. ter Horst, J. Hron, J. Kragt, N. Tromp, T. Agocs, G. Kroes, W. Laun, Ch. Leinert, M. Lehmitz, A. Matter, J. Menut, F. Millour, U. Neumann, E. Nussbaum, S. Ottogalli, J.-U. Pott, F. Rigal, A. Roussel, D. Schertl, M. Vannier, K. Wagner, M. Mellein, T. Kroener, N. Mauclert, P. Girard, G. Lagarde, L. Mosoni, A. Jasko, A. Glindemann, T. Phan Duc, G. Finger, D. Ives, G. Jakob, I. Percheron, G. Avila, R. Palsa, Eszter Pozna, J. Lizon, Ch. Lucuix, S. Menardi, P. Haguenauer, P. Gitton, S. Morel, F. Gonté, P. Jolley, G. Rupprecht, P. Bourget, F. Delplancke, L. Mehrgan, J. Stegmeier, G. van Belle, A. Richichi, A. Moorwood

Proceedings Volume 8445, 84450R (2012) https://doi.org/10.1117/12.926238

KEYWORDS: Interferometry, Sensors, Visibility, Mid-IR, L band, Telescopes, Spectral resolution, Image restoration, Interferometers, Photometry

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Proceedings Article | 15 September 2011 Paper

Higher-precision radial velocity measurements with the SOPHIE spectrograph using octagonal-section fibers

S. Perruchot, F. Bouchy, B. Chazelas, R. Díaz, G. Hébrard, K. Arnaud, L. Arnold, G. Avila, X. Delfosse, I. Boisse, G. Moreaux, F. Pepe, Y. Richaud, A. Santerne, R. Sottile, D. Tézier

Proceedings Volume 8151, 815115 (2011) https://doi.org/10.1117/12.892466

KEYWORDS: Optical fibers, Spectrographs, Telescopes, Stars, Near field, Calibration, Exoplanets, Velocity measurements, Fusion splicing, Vignetting

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Proceedings Article | 7 August 2010 Paper

Support for site testing of the European Extremely Large Telescope: precipitable water vapor over La Silla

Richard Querel, Florian Kerber, Gaspare Lo Curto, Joanna Thomas-Osip, Gabriel Prieto, Arlette Chacón, Omar Cuevas, Diana Pozo, Julio Marín, David Naylor, Michel Curé, Marc Sarazin, Carlos Guirao, Gerardo Avila

Proceedings Volume 7733, 773349 (2010) https://doi.org/10.1117/12.856480

KEYWORDS: Lanthanum, Observatories, Atmospheric modeling, Satellites, Telescopes, Radiometry, Spectroscopy, Space telescopes, Atmospheric optics, Infrared spectroscopy

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Proceedings Article | 21 July 2010 Paper

Results on fibre scrambling for high accuracy radial velocity measurements

Gerardo Avila, Paul Singh, Bruno Chazelas

Proceedings Volume 7735, 773588 (2010) https://doi.org/10.1117/12.861537

KEYWORDS: Seaborgium, Stars, Spectrographs, Telescopes, Near field, Point spread functions, Crystals, Beam homogenizers, Cladding, Velocity measurements

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