Sphere: complete laboratory performance and prediction for on-sky first light

Jean-François Sauvage; Jean-Luc Beuzit; Ronald Roelfsema; Markus Feldt; Kjetil Dohlen; David Mouillet; Pascal Puget; Francois Wildi; Lyu Abe; Andrea Baruffolo; Pierre Baudoz; Andreas Bazzon; Anthony Boccaletti; Tristan Buey; Marcel Carbillet; Julien Charton; Riccardo Claudi; Anne Costille; Alain Delboulbé; Silvano Desidera; Carsten Dominik; Mark Downing; Christophe Fabron; Philippe Feautrier; Enrico Fedrigo; Thierry Fusco; Enrico Giro; Laurence Gluck; Raffaele Gratton; Thomas Henning; Norbert Hubin; Markus Kasper; Anne-Marie Lagrange; Maud Langlois; David Le Mignant; Jean-Louis Lizon; Fabrice Madec; Yves Magnard; Patrice Martinez; Dino Mesa; Ole Möller-Nilsson; Thibaut Moulin; Claire Moutou; Alexey Pavlov; Denis Perret; Cyril Petit; Johan Pragt; Patrick Rabou; Sylvain Rochat; Bernardo Salasnich; Gérard Rousset; Hans-Martin Schmid; Arnaud Sevin; Christian Soenke; Eric Stadler; Marcos Suarez; Massimo Turatto; Stéphane Udry; Arthur Vigan; Farrokh Vakili; Gérard Zins; Alice Zurlo

doi:10.1117/12.2025562

26 September 2013 Sphere: complete laboratory performance and prediction for on-sky first light

Jean-François Sauvage, Jean-Luc Beuzit, Ronald Roelfsema, Markus Feldt, Kjetil Dohlen, David Mouillet, Pascal Puget, Francois Wildi, Lyu Abe, Andrea Baruffolo, Pierre Baudoz, Andreas Bazzon, Anthony Boccaletti, Tristan Buey, Marcel Carbillet, Julien Charton, Riccardo Claudi, Anne Costille, Alain Delboulbé, Silvano Desidera, Carsten Dominik, Mark Downing, Christophe Fabron, Philippe Feautrier, Enrico Fedrigo, Thierry Fusco, Enrico Giro, Laurence Gluck, Raffaele Gratton, Thomas Henning, Norbert Hubin, Markus Kasper, Anne-Marie Lagrange, Maud Langlois, David Le Mignant, Jean-Louis Lizon, Fabrice Madec, Yves Magnard, Patrice Martinez, Dino Mesa, Ole Möller-Nilsson, Thibaut Moulin, Claire Moutou, Alexey Pavlov, Denis Perret, Cyril Petit, Johan Pragt, Patrick Rabou, Sylvain Rochat, Bernardo Salasnich, Gérard Rousset, Hans-Martin Schmid, Arnaud Sevin, Christian Soenke, Eric Stadler, Marcos Suarez, Massimo Turatto, Stéphane Udry, Arthur Vigan, Farrokh Vakili, Gérard Zins, Alice Zurlo

Author Affiliations +

Proceedings Volume 8864, Techniques and Instrumentation for Detection of Exoplanets VI; 88640B (2013) https://doi.org/10.1117/12.2025562
Event: SPIE Optical Engineering + Applications, 2013, San Diego, California, United States

Abstract

Direct imaging of exoplanet is one of the most exciting field of planetology today. The light coming from exoplanet orbiting their host star witnesses for the chemical composition of the atmosphere, and the potential biomarkers for life. However, the faint flux to be imaged, very close to the huge flux of the parent star, makes this kind of observation extremely difficult to perform from the ground. The direct imaging instruments (SPHERE [1], GPI [2]) are nowaday reaching lab maturity. Such instrument imply the coordination of XAO for atmospherical turbulence real-time correction, coronagraphy for star light extinction, IR Dual band camera, IFS, and visible polarimetry. The imaging modes include single and double difference (spectral and angular). The SPHERE project is now at the end of AIT phase. This paper presents the very last results obtained in laboratory, with realistic working conditions. These AIT results allows one to predict on-sky performance, that should come within the next weeks after re-installation at Very Large Telescope at Paranal.

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Jean-François Sauvage, Jean-Luc Beuzit, Ronald Roelfsema, Markus Feldt, Kjetil Dohlen, David Mouillet, Pascal Puget, Francois Wildi, Lyu Abe, Andrea Baruffolo, Pierre Baudoz, Andreas Bazzon, Anthony Boccaletti, Tristan Buey, Marcel Carbillet, Julien Charton, Riccardo Claudi, Anne Costille, Alain Delboulbé, Silvano Desidera, Carsten Dominik, Mark Downing, Christophe Fabron, Philippe Feautrier, Enrico Fedrigo, Thierry Fusco, Enrico Giro, Laurence Gluck, Raffaele Gratton, Thomas Henning, Norbert Hubin, Markus Kasper, Anne-Marie Lagrange, Maud Langlois, David Le Mignant, Jean-Louis Lizon, Fabrice Madec, Yves Magnard, Patrice Martinez, Dino Mesa, Ole Möller-Nilsson, Thibaut Moulin, Claire Moutou, Alexey Pavlov, Denis Perret, Cyril Petit, Johan Pragt, Patrick Rabou, Sylvain Rochat, Bernardo Salasnich, Gérard Rousset, Hans-Martin Schmid, Arnaud Sevin, Christian Soenke, Eric Stadler, Marcos Suarez, Massimo Turatto, Stéphane Udry, Arthur Vigan, Farrokh Vakili, Gérard Zins, and Alice Zurlo "Sphere: complete laboratory performance and prediction for on-sky first light", Proc. SPIE 8864, Techniques and Instrumentation for Detection of Exoplanets VI, 88640B (26 September 2013); https://doi.org/10.1117/12.2025562

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KEYWORDS

Optical spheres

Coronagraphy

Turbulence

Exoplanets

Planets

Stars

Adaptive optics

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