Exo-NINJA at Subaru: fiber-fed spectro-imaging of exoplanets and circumstellar disks at R$\sim$4000
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| Autores principales: | , , , , , , , , , , , |
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| Formato: | Preprint |
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2024
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| _version_ | 1866911965139435520 |
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| author | Morsy, Mona El Lozi, Julien Guyon, Olivier Currie, Thayne Vievard, Sébastien Bryant, Julia Tokoku, Chihiro Deo, Vincent Ahn, Kyohoon Crous, Fred Wang, Adeline Haobing Sathi, Zinat Mahol |
| author_facet | Morsy, Mona El Lozi, Julien Guyon, Olivier Currie, Thayne Vievard, Sébastien Bryant, Julia Tokoku, Chihiro Deo, Vincent Ahn, Kyohoon Crous, Fred Wang, Adeline Haobing Sathi, Zinat Mahol |
| contents | Exo-NINJA will realize nearIR R$\sim$4000 diffraction-limited narrow-field spectro-imaging for characterization of exoplanets and circumstellar disk structures. It uniquely combines mid-R spectroscopy, high throughput, and spatial resolution, in contrast to CHARIS, which does spectro-imaging, and REACH, which is single-point (no spatial resolution). Exo-NINJA's spectro-imaging at the telescope diffraction limit will characterize exoplanet atmospheres, detect and map (spatially and spectrally) gas accretion on protoplanets, and also detect exoplanets at small angular separation ($λ$/D) from their host star by spectro-astrometry. Exo-NINJA will link two instruments at the Subaru Telescope using a high-throughput hexagonal multi-mode fiber bundle (hexabundle). The fiber coupling resides between the high contrast imaging system SCExAO, which combines ExAO and coronagraph, and the medium-resolution spectrograph NINJA (R$=$4000 at JHK bands). Exo-NINJA will provide an end-to-end throughput of 20% compared to the 1.5% obtained with REACH. Exo-NINJA is scheduled for implementation on the Subaru Telescope's NasIR platform in 2025; we will present a concise overview of its future installation, laboratory tests such as the throughput and focal ratio degradation (FRD) performance of optical fiber imaging hexabundles, in the NIR and the trade-offs for fiber choices for the NINJA-SCExAO hexabundle fiber cable, and the expected on sky performance. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2407_16746 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Exo-NINJA at Subaru: fiber-fed spectro-imaging of exoplanets and circumstellar disks at R$\sim$4000 Morsy, Mona El Lozi, Julien Guyon, Olivier Currie, Thayne Vievard, Sébastien Bryant, Julia Tokoku, Chihiro Deo, Vincent Ahn, Kyohoon Crous, Fred Wang, Adeline Haobing Sathi, Zinat Mahol Instrumentation and Methods for Astrophysics Earth and Planetary Astrophysics Exo-NINJA will realize nearIR R$\sim$4000 diffraction-limited narrow-field spectro-imaging for characterization of exoplanets and circumstellar disk structures. It uniquely combines mid-R spectroscopy, high throughput, and spatial resolution, in contrast to CHARIS, which does spectro-imaging, and REACH, which is single-point (no spatial resolution). Exo-NINJA's spectro-imaging at the telescope diffraction limit will characterize exoplanet atmospheres, detect and map (spatially and spectrally) gas accretion on protoplanets, and also detect exoplanets at small angular separation ($λ$/D) from their host star by spectro-astrometry. Exo-NINJA will link two instruments at the Subaru Telescope using a high-throughput hexagonal multi-mode fiber bundle (hexabundle). The fiber coupling resides between the high contrast imaging system SCExAO, which combines ExAO and coronagraph, and the medium-resolution spectrograph NINJA (R$=$4000 at JHK bands). Exo-NINJA will provide an end-to-end throughput of 20% compared to the 1.5% obtained with REACH. Exo-NINJA is scheduled for implementation on the Subaru Telescope's NasIR platform in 2025; we will present a concise overview of its future installation, laboratory tests such as the throughput and focal ratio degradation (FRD) performance of optical fiber imaging hexabundles, in the NIR and the trade-offs for fiber choices for the NINJA-SCExAO hexabundle fiber cable, and the expected on sky performance. |
| title | Exo-NINJA at Subaru: fiber-fed spectro-imaging of exoplanets and circumstellar disks at R$\sim$4000 |
| topic | Instrumentation and Methods for Astrophysics Earth and Planetary Astrophysics |
| url | https://arxiv.org/abs/2407.16746 |