Dr. Vincent Picouet Profile

Dr. Vincent Picouet

Research Engineer at Lab d'Astrophysique de Marseille

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Author

Publications (7)

Proceedings Article | 27 September 2023 Presentation

FIREBall-2 UV balloon telescope in-flight calibration system

Jessica Li, Nazende Kerkeser, Aafaque Khan, Simran Agarwal, Erika Hamden, David Schiminovich, Haeun Chung, Vincent Picouet, Drew Miles, Keri Hoadley, Ignacio Cevallos-Aleman, Harrison Bradley, Olivia Jones, D. Christopher Martin, Marty Crabill, Trenton Brendel, Shouleh Nikzad, Nicolas Bray, Johan Montel, Gillian Kyne, Zeren Lin, Philippe Balard, Patrick Blanchard, Charles-Antoine Chevrier, Alain Peus, Didier Vibert, Nicole Melso, David Valls-Gabaud

Proceedings Volume 12678, 1267804 (2023) https://doi.org/10.1117/12.2676583

KEYWORDS: Calibration, Ultraviolet telescopes, Ultraviolet radiation, Telescopes, Balloons, Zinc, Spectrographs, Emission wavelengths, Camera shutters, Sensors

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SPIE Journal Paper | 25 November 2022 Open Access

Balloon-borne FIREBall-2 ultraviolet spectrograph stray light control based on nonsequential reverse modeling of on-sky data

Trenton Brendel, Aafaque Khan, Simran Agarwal, Heejoo Choi, Daewook Kim, Erika Hamden, Vincent Picouet, D. Christopher Martin, Bruno Milliard, David Schiminovich, Shouleh Nikzad, Jean Evrard, Nicolas Bray, Johan Montel, Keri Hoadley, Drew Miles, Gillian Kyne, Jessica Li, Zeren Lin, Haeun Chung, Philippe Balard, Patrick Blanchard, Marty Crabill, Charles-Antoine Chevrier, Alain Peus, Ignacio Cevallos-Aleman, Olivia Jones, Harrison Bradley, Naz Ipek Kerkeser, Matthew Werneken, Didier Vibert, Nicole Melso, David Valls-Gabaud

JATIS, Vol. 8, Issue 04, 048001, (November 2022) https://doi.org/10.1117/12.10.1117/1.JATIS.8.4.048001

KEYWORDS: Baffles, Stray light, Sensors, Spectrographs, Mirrors, Balloons, Ultraviolet radiation, Stray light control, Tongue, Light scattering

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Proceedings Article | 29 August 2022 Presentation

FIREBall-2(022): challenges, progress, and the road ahead to flight

Keri Hoadley, Chris Martin, Erika Hamden, David Schiminovich, Shouleh Nikzad, Jean Evrard, Bruno Milliard, David Valls-Gabaud, Aafaque Khan, Simran Agarwal, Haeun Chung, Jessica Li, Trenton Brendel, Carlos Vargas, Nicole Melso, Zeren Lin, Marty Crabill, Drew Miles, Gillian Kyne, Vincent Picouet, Ignacio Cevallos, Barbara Santiago, Philippe Balard, Patrick Blanchard, Didier Vibert, Nicolas Bray, Catherine Hourtolle, Frédéri Mirc, Johan Montel, Jared Termini

Proceedings Volume 12181, 1218109 (2022) https://doi.org/10.1117/12.2629052

KEYWORDS: Roads, Galactic astronomy, Ultraviolet radiation, Space operations, Electron multiplying charge coupled devices, Ultraviolet telescopes, Ultraviolet detectors, Spectrographs, Space telescopes, Observatories

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Proceedings Article | 13 December 2020 Presentation

FIREBAll-2 thermal control system: Performance of the 2018 flight and improvements for 2021

Zeren Lin, Gillian Kyne, Bruno Milliard, Hung Pham, Keri Hoadley, Chris Martin, David Schiminovich, Erika Hamden, Shouleh Nikzad, Vincent Picouet

Proceedings Volume 11445, 1144529 (2020) https://doi.org/10.1117/12.2561974

KEYWORDS: Control systems, Cryocoolers, Sensors, Thermal modeling, Performance modeling, Ultraviolet radiation, Astronomical imaging, Spectrographs, Galactic astronomy, Electron multiplying charge coupled devices

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SPIE Journal Paper | 13 November 2020

End-to-end ground calibration and in-flight performance of the FIREBall-2 instrument

Vincent Picouet, Bruno Milliard, Gillian Kyne, Didier Vibert, David Schiminovich, Christopher Martin, Erika Hamden, Keri Hoadley, Johan Montel, Nicole Melso, Donal O'Sullivan, Jean Evrard, Etienne Pérot, Robert Grange, Shouleh Nikzad, Philippe Balard, Patrick Blanchard, Frédéri Mirc, Nicolas Bray, April Jewell, Samuel Quiret

JATIS, Vol. 6, Issue 04, 044004, (November 2020) https://doi.org/10.1117/12.10.1117/1.JATIS.6.4.044004

KEYWORDS: Calibration, Sensors, Spectrographs, Ultraviolet radiation, Chromium, Galactic astronomy, Signal to noise ratio, Electron multiplying charge coupled devices, Stars, Spatial resolution

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Proceedings Article | 13 May 2019 Paper

FIREBall-2: advancing TRL while doing proof-of-concept astrophysics on a suborbital platform

Erika Hamden, Keri Hoadley, D. Christopher Martin, David Schiminovich, Bruno Milliard, Shouleh Nikzad, Ramona Augustin, Philippe Balard, Patrick Blanchard, Nicolas Bray, Marty Crabill, Jean Evrard, Albert Gomes, Robert Grange, Julia Gross, April Jewell, Gillian Kyne, Michele Limon, Nicole Lingner, Mateusz Matuszewski, Nicole Melso, Frédéri Mirc, Johan Montel, Hwei Ru Ong, Donal O'Sullivan, Sandrine Pascal, Etienne Perot, Vincent Picouet, Muriel Saccoccio, Brian Smiley, Xavier Soors, Pierre Tapie, Didier Vibert, Isabelle Zenone, Jose Zorrilla

Proceedings Volume 10982, 1098220 (2019) https://doi.org/10.1117/12.2518711

KEYWORDS: Ultraviolet radiation, Sensors, Charge-coupled devices, Astrophysics, Electron multiplying charge coupled devices, Quantum efficiency, Mirrors, Spectrographs, Microchannel plates, Ultraviolet detectors

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Proceedings Article | 10 July 2018 Presentation

The Faint Intergalactic Redshifted Emission Balloon-2: End-to-end ground Calibration (Conference Presentation)

Vincent Picouet, Bruno Milliard, Didier Vibert, Robert Grange, Christopher Martin, Erika Hamden, Gillian Kyne, David Schiminovich, Ramona Augustin, Nicole Melso, Julia Gross, Samuel Quiret

Proceedings Volume 10699, 106990L (2018) https://doi.org/10.1117/12.2313324

KEYWORDS: Calibration, Ultraviolet radiation, Galactic astronomy, Holographic interferometry, Astronomical imaging, Spectrographs, Optical design, Absorption spectroscopy, Spatial resolution, Spectral resolution

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The circumgalactic medium (CGM) plays a critical role in the evolution of galaxy discs, as it hosts important mechanisms regulating their replenishment through inflows and outflows. Besides absorption spectroscopy, mapping of the HI Lyα emission of z>2 CGM is bringing a new perspective with a complete 2- or 3-D mapping. Despite this benefit, data in emission are very scarce in the large time span from z∼2 to the present because of the difficulties inherent to vacuum UV observations. The FIREBall-2 (Faint Intergalactic Redshifted Emission Balloon) instrument has been developed to help fill this gap and is scheduled for launch in September 2018. It has been optimized to provide a bi-dimensional (x, λ) map of the extremely faint diffuse Ly-a HI emission in the CGM at z∼0.7 and has the capability to observe ~200 galaxies and a dozen QSOs in a single night flight. Given its wide field of view (FOV) of 20x40 arcmin2, its angular resolution of 6-10 arcsec and spectral resolution above 1000, FIREBall-2 will bring important insights about the gas distribution in the CGM, and the velocity/temperature fields, and has the potential to bring statistical constraints. The instrument is a balloon-borne 1m telescope coupled to a UV multi-object spectrograph (MOS) designed to image the CGM in emission via specific spectral lines (Lya, CIV, OVI) redshifted in a narrow UV band [1990 - 2130]A for the nearby universe (0.2< z <1). The optical design relies on a 1.2-meter moving siderostat that stabilizes the beam and reflects the light on a fixed paraboloid which in turn images it at the entrance of the payload. This payload is constituted of a focal corrector followed by a slit Multi-Object Spectrograph (reflective 2400 g/mm holographic aspherical grating located between two Schmidt mirrors). The objects selection is achieved with a series of pre-installed precision mask systems that also feed the fine guidance camera. The detector is a e2v electron multiplying CCD coated and delta-doped by the Jet Propulsion Laboratory. FIREBall-2 is funded by CNES and NASA and is developed in cooperation with a Franco-American consortium composed of LAM, CALTECH, Columbia University, JPL and CST-CNES. In this presentation, we describe the final ground calibration of the instrument. We explain what technical specifications ensue from the scientific goals of the mission and we will then highlight why this optical design has been chosen. The calibration of the instrument (alignment - through focus - distortion) will be presented followed by the analysis of the instrument scientific performances. We will then describe the improvement and the calibration of the ZEMAX-coupled instrument model developed at LAM, based on these final performances. This model is finally used to make an end-to-end prediction of the observations of the emission of the CGM from a large halo in a cosmological simulation.

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