Commissioning of a single mode radial velocity spectrograph at Palomar

Gautam Vasisht; Rebecca Oppenheimer; Charles Beichman; Dimitri Mawet

doi:10.1117/12.3019275

19 July 2024 Commissioning of a single mode radial velocity spectrograph at Palomar

Gautam Vasisht, Rebecca Oppenheimer, Charles Beichman, Dimitri Mawet

Author Affiliations +

Proceedings Volume 13096, Ground-based and Airborne Instrumentation for Astronomy X; 130961F (2024) https://doi.org/10.1117/12.3019275
Event: SPIE Astronomical Telescopes + Instrumentation, 2024, Yokohama, Japan

Abstract

Of late adaptive optics coupled compact spectrometers have been much discussed in the literature as an inexpensive means to obtaining very high resolving power (R ~ 100,000 or higher) spectroscopy on large telescopes. The Palomar Radial Velocity Instrument (PARVI), fitting in shoebox-sized space, is the first such instrument on sky and is designed to carry out JH band radial velocity measurements while coupled via single mode fiber transport to an extreme AO system, as well as an electro-optic modulation generated laser frequency comb. In this presentation we discuss the instrument, its current performance, and describe some of the special challenges involved in achieving robust operation at the diffraction limit.

Conference Presentation

Citation Download Citation

Gautam Vasisht, Rebecca Oppenheimer, Charles Beichman, and Dimitri Mawet "Commissioning of a single mode radial velocity spectrograph at Palomar", Proc. SPIE 13096, Ground-based and Airborne Instrumentation for Astronomy X, 130961F (19 July 2024); https://doi.org/10.1117/12.3019275

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