SDSS-V BOSS spectrograph modifications for Las Campanas Observatory

Graham Murray; Julia Brady; Gregory Bredthauer; Timothy Butterley; Charlie Hull; Juna Kollmeier; Rishi Pahuja; Solange Ramírez; José R. Sánchez-Gallego; Alan Uomoto; Stefanie Wachter

doi:10.1117/12.3017650

18 July 2024 SDSS-V BOSS spectrograph modifications for Las Campanas Observatory

Graham Murray, Julia Brady, Gregory Bredthauer, Timothy Butterley, Charlie Hull, Juna Kollmeier, Rishi Pahuja, Solange Ramírez, José R. Sánchez-Gallego, Alan Uomoto, Stefanie Wachter

Author Affiliations +

Proceedings Volume 13096, Ground-based and Airborne Instrumentation for Astronomy X; 130967Q (2024) https://doi.org/10.1117/12.3017650
Event: SPIE Astronomical Telescopes + Instrumentation, 2024, Yokohama, Japan

Conference Poster

Abstract

For the fifth Sloan Digital Sky Survey, SDSS-V, we moved one of the two SDSS BOSS spectrographs from Apache Point Observatory in New Mexico to Las Campanas Observatory in Chile, giving us dual-hemisphere coverage. Modifications for connecting to a new robotic fiber positioner included replacing the old fiber slit with a monolithic fiber slit made of a precision-machined glass mount presenting 528 fibers. To construct this slit, V-grooves were cut into a borosilicate glass substrate and fibers were glued into them under a cover plate. This glass slit was then attached to an Alloy 39 (steel) flexure, which in turn was affixed to a thin slit plate made of cast aluminum for insertion into the spectrograph. Because our existing spare parts inventory would not support two distant locations, and because many parts were no longer manufactured, some spectrograph subsystems were replaced with new components or designs.

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Graham Murray, Julia Brady, Gregory Bredthauer, Timothy Butterley, Charlie Hull, Juna Kollmeier, Rishi Pahuja, Solange Ramírez, José R. Sánchez-Gallego, Alan Uomoto, and Stefanie Wachter "SDSS-V BOSS spectrograph modifications for Las Campanas Observatory", Proc. SPIE 13096, Ground-based and Airborne Instrumentation for Astronomy X, 130967Q (18 July 2024); https://doi.org/10.1117/12.3017650

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available