Exploring the potential of a VIPA spectrograph on-sky
We developed a near-IR, échelle-like, fiber-fed spectrograph demonstrator using a VIPA instead of an échelle grating, achieving a high spectral resolution (R=80,000) over a 220 nm range with 38% efficiency (from fiber exit to H2RG detector). Designed to characterize exoplanets at high spectral resolution with an XAO in...