论文标题

连接球体和CRIRE+以高光谱分辨率的年轻系外行星的表征:VLT/Hirise的状态更新

Connecting SPHERE and CRIRES+ for the characterisation of young exoplanets at high spectral resolution: status update of VLT/HiRISE

论文作者

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.

论文摘要

大型地面望远镜上的新一代系外行星成像仪高度优化,可用于检测近红外的年轻巨型系外行星,但由于其积分谱仪的低光谱分辨率($ r <100 $),它们在本质上限制了它们的表征。 $ r \ gg 10^4 $处的高分散光谱将是对这些行星进行表征的强大工具,但是目前没有具有极端自适应光学和冠状动力仪的高分辨率光谱仪,可以实现这种表征。使用Project Hirise,我们建议使用纤维耦合将智利非常大的望远镜的两种旗舰仪器的功能结合在一起:系外行星成像器球和高分辨率光谱仪++。该耦合将于2023年初在望远镜上实施。我们提供了欧洲的集会,集成和测试(AIT)阶段的Hirise实施的一般概述,并根据最终硬件简要评估其预期性能。

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.

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