Ocotillo: a fiber-fed spectrograph for the ARC 3.5m telescope

Sarah E. Tuttle; Caleb Wang; Travis Mandeville; José Sánchez-Gallego; Conor Sayres; Nancy Chanover; William Ketzebeck; Russet McMillian; Jamey Eriksen

doi:10.1117/12.3020577

19 July 2024 Ocotillo: a fiber-fed spectrograph for the ARC 3.5m telescope

Sarah E. Tuttle, Caleb Wang, Travis Mandeville, José Sánchez-Gallego, Conor Sayres, Nancy Chanover, William Ketzebeck, Russet McMillian, Jamey Eriksen

Author Affiliations +

Proceedings Volume 13096, Ground-based and Airborne Instrumentation for Astronomy X; 130960I (2024) https://doi.org/10.1117/12.3020577
Event: SPIE Astronomical Telescopes + Instrumentation, 2024, Yokohama, Japan

Abstract

Ocotillo is a new fiber-fed optical spectrograph being built for the Apache Point Observatory ARCS 3.5m telescope. The spectrograph consists of three channels, observing from the very blue to near the infrared, across the full optical bandpass. It is a relatively low resolution spectrograph, with ~2000 < R < 4000, depending on wavelength. There are two interchangable fiber feeds - one, a single integral field unit. The second fiber feed is a collection of robotic fiber positioners, each carrying 19 fibers in a small integral field unit. The fiber run has a single connector between the front end and the spectrograph slit, making for a straight forward swap between the two assemblies. We present here the overall opto-mechanical design and progress towards commissioning.

Conference Presentation

Citation Download Citation

Sarah E. Tuttle, Caleb Wang, Travis Mandeville, José Sánchez-Gallego, Conor Sayres, Nancy Chanover, William Ketzebeck, Russet McMillian, and Jamey Eriksen "Ocotillo: a fiber-fed spectrograph for the ARC 3.5m telescope", Proc. SPIE 13096, Ground-based and Airborne Instrumentation for Astronomy X, 130960I (19 July 2024); https://doi.org/10.1117/12.3020577

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