Dr. Gioia Rau Profile

Dr. Gioia Rau

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Publications (5)

Proceedings Article | 28 August 2024 Presentation + Paper

Artemis-enabled Stellar Imager (AeSI): a Lunar long-baseline UV/optical imaging interferometer

Gioia Rau, Kenneth Carpenter, Tabetha Boyajian, Michelle Creech-Eakman, Julianne Foster, Margarita Karovska, David Leisawitz, Jon Morse, David Mozurkewich, Sarah Peacock, Noah Petro, Paul Scowen, Breann Sitarski, Gerard van Belle, Erik Wilkinson

Proceedings Volume 13095, 130951J (2024) https://doi.org/10.1117/12.3028797

KEYWORDS: Astronomical interferometers, Imaging systems, Stars, Interferometers, Stellar interferometry, Chemical elements, Ultraviolet radiation, Magnetism, Exoplanets, Engineering

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Proceedings Article | 23 August 2024 Presentation + Paper

MoonLITE: a CLPS-delivered NASA Astrophysics Pioneers lunar optical interferometer for sensitive, milliarcsecond observing

Gerard van Belle, David Ciardi, Daniel Hillsberry, Anders Jorgensen, John Monnier, Krista Lynne Smith, Tabetha Boyajian, Kenneth Carpenter, Catherine Clark, Gioia Rau, Gail Schaefer

Proceedings Volume 13092, 130922N (2024) https://doi.org/10.1117/12.3020371

KEYWORDS: Long baseline optical interferometry, Astronomical interferometry, Michelson interferometers, Exoplanetary science, Telescopes, Equipment, Stars, Optical interferometry, Astronomical interferometers, Spatial resolution, Astrophysics

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MoonLITE (Lunar InTerferometry Explorer) is an Astrophysics Pioneers proposal to develop, build, fly, and operate the first separated-aperture optical interferometer in space, delivering sub-milliarcsecond science results. MoonLITE will leverage the Pioneers opportunity for utilizing NASA’s Commercial Lunar Payload Services (CLPS) to deliver an optical interferometer to the lunar surface, enabling unprecedented discovery power by combining high spatial resolution from optical interferometry with deep sensitivity from the stability of the lunar surface. Following landing, the CLPS-provided rover will deploy the pre-loaded MoonLITE outboard optical telescope 100 meters from the lander’s inboard telescope, establishing a two-element interferometric observatory with a single deployment. MoonLITE will observe targets as faint as 17th magnitude in the visible, exceeding ground-based interferometric sensitivity by many magnitudes, and surpassing space-based optical systems resolution by a factor of 50×. The capabilities of MoonLITE open a unique discovery space that includes direct size measurements of the smallest, coolest stars and substellar brown dwarfs; searches for close-in stellar companions orbiting exoplanet-hosting stars that could confound our understanding and characterization of the frequency of Earth-like planets; direct size measurements of young stellar objects and characterization of the terrestrial planet-forming regions of these young stars; measurements of the inner regions and binary fraction of active galactic nuclei; and a probe of the very nature of spacetime foam itself. A portion of the observing time will also be made available to the broader community via a guest observer program. MoonLITE takes advantage of the CLPS opportunity to place an interferometer in space on a stable platform – the lunar surface – and delivers an unprecedented combination of sensitivity and angular resolution at the remarkably affordable cost point of Pioneers.

Proceedings Article | 31 August 2022 Poster + Paper

The Japan-United States Infrared Interferometry Experiment (JUStIInE): balloon-borne pathfinder for a space-based far-IR interferometer

David Leisawitz, Taro Matsuo, Gregory Mosby, Peter Ade, Rachel Akeson, Dale Fixsen, Qian Gong, Hidehiro Kaneda, Stephen Maher, Lee Mundy, Shunsuke Ota, Gioia Rau, Elmer Sharp, Toru Shimokawa, Johannes Staguhn, Carole Tucker, Gerard van Belle

Proceedings Volume 12190, 121901G (2022) https://doi.org/10.1117/12.2629426

KEYWORDS: Interferometry, Stars, Interferometers, Telescopes, Sensors, Visibility, Spatial resolution, Optical filters, Mirrors, Calibration

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Proceedings Article | 27 August 2022 Presentation + Paper

CLEoPATRA: contemporaneous lensing parallax and autonomous transient assay

Richard Barry, Gregory Olmschenk, Frank Ravizza, Ian Bond, Benjamin Cervantes, Stela Ishitani-Silva, Asmita Korde-patel, Nicholas Rattenbury, Gioia Rau, Takahiro Sumi, Edward Wyrwas

Proceedings Volume 12180, 121800D (2022) https://doi.org/10.1117/12.2620310

KEYWORDS: Space operations, Telescopes, Stars, Planets, Observatories, Artificial intelligence, Exoplanets, Neural networks, Interfaces, Satellites

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Proceedings Article | 26 August 2022 Presentation + Paper

Laser-guided space interferometer

Leonid Pogorelyuk, Paul Serra, Shreeyam Kacker, Sophia Vlahakis, Nicholas Belsten, Gioia Rau, Kenneth Carpenter, Laurent Pueyo, John Monnier, Ewan Douglas, Kerri Cahoy

Proceedings Volume 12183, 121831E (2022) https://doi.org/10.1117/12.2630605

KEYWORDS: Stars, Mirrors, Interferometers, Signal to noise ratio, Diffraction, Laser guide stars, Space mirrors, Sensors

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