Spectroscopy using a visible photonic lantern at the Subaru telescope: Laboratory characterization and first on-sky demonstration on Ikiiki ({\alpha} Leo) and `Aua ({\alpha} Ori)

Autor: Vievard, Sébastien, Lallement, Manon, Leon-Saval, Sergio, Guyon, Olivier, Jovanovic, Nemanja, Huby, Elsa, Lacour, Sylvestre, Lozi, Julien, Deo, Vincent, Ahn, Kyohoon, Lucas, Miles, Sallum, Steph, Norris, Barnaby, Betters, Chris, Amezcua-Correa, Rodrygo, Yerolatsitis, Stephanos, Fitzgerald, Michael, Lin, Jon, Kim, Yoo Jung, Gatkine, Pradip, Kotani, Takayuki, Tamura, Motohide, Currie, Thayne, Kenchington, Harry-Dean, Martin, Guillermo, Perrin, Guy

Publikováno v: A&A 691, A140 (2024)

Photonic lanterns are waveguide devices enabling high throughput single mode spectroscopy and high angular resolution. We aim to present the first on-sky demonstration of a photonic lantern (PL) operating in visible light, to measure its throughput a

Externí odkaz: http://arxiv.org/abs/2409.06958

Photonic chip for visible interferometry: laboratory characterization and comparison with the theoretical model

Autor: Lallement, Manon, Lacour, Sylvestre, Huby, Elsa, Martin, Guillermo, Barjot, Kevin, Perrin, Guy, Rouan, Daniel, Lapeyrere, Vincent, Vievard, Sebastien, Guyon, Olivier, Lozi, Julien, Deo, Vincent, Kotani, Takayuki, Pham, Cecil, Cassagnettes, Cedric, Billat, Adrien, Cvetojevic, Nick, Marchis, Franck

Publikováno v: Proceeding SPIE Astronomical Telescopes + Instrumentation, Montreal, Quebec, Canada, Volume 12188, Advances in Optical and Mechanical Technologies for Telescopes and Instrumentation V, 121882F (2022)

Integrated optics are used to achieve astronomical interferometry inside robust and compact materials, improving the instruments stability and sensitivity. In order to perform differential phase measurements at the H$\alpha$ line (656.3 nm) with the

Externí odkaz: http://arxiv.org/abs/2409.03808

The MICADO first light imager for the ELT: Sparse Aperture Masks, design and simulations

Autor: Huby, Elsa, Baudoz, Pierre, Lacour, Sylvestre, Teuff, Manon Le, Clénet, Yann, Davies, Richard

Publikováno v: Proc. SPIE, 2024, 13096, Ground-based and Airborne Instrumentation for Astronomy X, 130965D

MICADO, the European Extremely Large Telescope first light imager will feature a dedicated high contrast imaging mode specifically designed for observing and characterizing exoplanets and circumstellar disks. Two sparse aperture masks (SAM) will be i

Externí odkaz: http://arxiv.org/abs/2408.17146

Efficiently Searching for Close-in Companions around Young M Dwarfs using a Multi-year PSF Library

Autor: Sanghi, Aniket, Xuan, Jerry, Wang, Jason, Mawet, Dimitri, Bowler, Brendan, Ngo, Henry, Bryan, Marta, Ruane, Garreth, Absil, Olivier, Huby, Elsa

We present Super-RDI, a unique framework for the application of reference star differential imaging (RDI) to Keck/NIRC2 high-contrast imaging observations with the vortex coronagraph. Super-RDI combines frame selection and signal-to-noise ratio (S/N)

Externí odkaz: http://arxiv.org/abs/2408.14268

Visible Photonic Lantern integration, characterization and on-sky testing on Subaru/SCExAO

Autor: Vievard, Sébastien, Lallement, Manon, Leon-Saval, Sergio, Guyon, Olivier, Jovanovic, Nemanja, Huby, Elsa, Lacour, Sylvestre, Lozi, Julien, Deo, Vincent, Ahn, Kyohoon, Lucas, Miles, Currie, Thayne, Sallum, Steph, Fitzgerald, Michael P., Betters, Chris, Norris, Barnaby, Amezcua-Correa, Rodrigo, Yerolatsitis, Stephanos, Lin, Jon, Kim, Yoo-Jung, Gatkine, Pradip, Kotani, Takayuki, Tamura, Motohide, Martin, Guillermo, Goldsmith, Harry-Dean Kenchington, Perrin, Guy

A Photonic Lantern (PL) is a novel device that efficiently converts a multi-mode fiber into several single-mode fibers. When coupled with an extreme adaptive optics (ExAO) system and a spectrograph, PLs enable high throughput spectroscopy at high ang

Externí odkaz: http://arxiv.org/abs/2407.15412