Aug 2026· Astronomical Telescopes + Instrumentation· Vol 14149, pp. 141490U - 141490U-20· 0 citations· 23 references
Engineering
Abstract
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 instrument, it was installed in February 2025 for on-sky demonstration at the 1.52m Haute-Provence Observatory telescope, and coupled via the PAPYRUS AO system. We observed reference and feature-rich stars to test the instrument’s H-band transmission and spectral fidelity/stability. K-band tests are planned for early 2026. This presentation covers the current design, calibrations, and on-sky performance, as well as the data reduction pipeline and ETC we developed. We also detail the attempted observation of HR8799c, including a comprehensive SNR analysis to identify limitations and extrapolate to larger telescopes. Finally, we introduce the design of an HK-band version.
ECHARPE is a new fiber-fed, high-resolution ´echelle spectrograph for the 1.6-m Perkin & Elmer telescope at the Observat´orio do Pico dos Dias (OPD/LNA), Brazil. Designed as a bench-mounted and environmentally controlled instrument, it delivers broad visible-band coverage (380–900 nm) with a resolving power of R ∼ 50,0...
B. Castilho, E. Martioli, Luciano Fraga et al.· Astronomical Telescopes + In...· 1 citation
In the era of Extremely Large Telescopes, the current generation of 8-10m facilities is likely to remain competitive at ground-UV wavelengths for the foreseeable future. The Cassegrain U-Band Efficient Spectrograph (CUBES) has been designed to provide high instrumental efficiency (> 37%) for observations in the near UV...
M. Genoni, Hans Dekker, S. Covino et al.· Astronomical Telescopes + In...· 5 citations
The SOAR Telescope Echelle Spectrograph (STELES) is a high-resolution, near-UV/optical spectrograph for the 4.1 m SOAR Telescope. STELES is a Nasmyth-fed, dual-channel (blue/red), VPH cross-dispersed echelle spectrograph operating in quasi-Littrow white-pupil configuration. The instrument provides simultaneous waveleng...
F. Navarete, B. Castilho, Jesulino Santos et al.· Astronomical Telescopes + In...· 0 citations
We present an update on the development of the Second Earth Spectrograph (2ES), a fiber-fed, high-resolution, extreme-precision radial-velocity echelle spectrograph for the 2.2m ESO/MPG telescope at La Silla Observatory, Chile. The instrument will provide spectral coverage from approximately 370nm to 890nm at a resolvi...
J. Stürmer, L. Buchhave, S. Barboza et al.· Astronomical Telescopes + In...· 0 citations
HARMONI is the integral field spectrograph for the Extremely Large Telescope (ELT). Designed as the primary workhorse near-infrared spectrograph of the ELT, it will deliver spatially resolved spectroscopy at diffraction-limited angular resolution over the wavelength range 0.75–2.4 μm, addressing science questions rangi...
B. Neichel, J. Dunlop, S. Chittick et al.· Astronomical Telescopes + In...· 1 citation· ⚡1
The Extremely Large Telescopes (ELTs), with their large apertures and cutting-edge Multi-Conjugate Adaptive Optics (MCAO) systems, promise to deliver data sharper and deeper than even the James Webb Space Telescope (JWST) across large fields. SHARP is a concept study for a near-IR (0.95–2.45 μm) spectrograph specifical...
P. Saracco, P. Conconi, C. Arcidiacono et al.· Astronomical Telescopes + In...· 0 citations
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