학술논문
Connecting SPHERE and CRIRES+ for the characterisation of young exoplanets at high spectral resolution: status update of VLT/HiRISE
Document Type
Working Paper
Author
Vigan, A.; Lopez, M.; Morsy, M. El; Muslimov, E.; Viret, A.; Zins, G.; Murray, G.; Costille, A.; Otten, G. P. P. L.; Seemann, U.; Anwand-Heerwart, H.; Dohlen, K.; Blanchard, P.; Garcia, J.; Charles, Y.; Tchoubaklian, N.; Ely, T.; Phillips, M.; Paufique, J.; Beuzit, J. -L.; Houllé, M.; Costes, J.; Pourcelot, R.; Baraffe, I.; Dorn, R.; Jaquet, M.; Kasper, M.; Reiners, A.; Smette, A.; Blanco, L.; Pallanca, L.; Carlotti, A.; Choquet, É.; Mouillet, D.; N'Diaye, M.
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Subject
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Abstract
New generation exoplanet imagers on large ground-based telescopes are highly optimised for the detection of young giant exoplanets in the near-infrared, but they are intrinsically limited for their characterisation by the low spectral resolution of their integral field spectrographs ($R<100$). High-dispersion spectroscopy at $R \gg 10^4$ would be a powerful tool for the characterisation of these planets, but there is currently no high-resolution spectrograph with extreme adaptive optics and coronagraphy that would enable such characterisation. With project HiRISE we propose to use fiber coupling to combine the capabilities of two flagship instruments at the Very Large Telescope in Chile: the exoplanet imager SPHERE and the high-resolution spectrograph CRIRES+. The coupling will be implemented at the telescope in early 2023. We provide a general overview of the implementation of HiRISE, of its assembly, integration and testing (AIT) phase in Europe, and a brief assessment of its expected performance based on the final hardware.
Comment: Submitted to SPIE Astronomical Telescopes + Instrumentation 2022, Adaptive Optics Systems VIII, Paper 12185-27
Comment: Submitted to SPIE Astronomical Telescopes + Instrumentation 2022, Adaptive Optics Systems VIII, Paper 12185-27