SAMOS: a versatile multi-object-spectrograph for the GLAO system SAM at SOAR

Massimo Robberto; Megan Donahue; Zoran Ninkov; Stephen A. Smee; Robert H. Barkhouser; Mario Gennaro; Andrei Tokovinin

doi:10.1117/12.2233094

9 August 2016 SAMOS: a versatile multi-object-spectrograph for the GLAO system SAM at SOAR

Massimo Robberto, Megan Donahue, Zoran Ninkov, Stephen A. Smee, Robert H. Barkhouser, Mario Gennaro, Andrei Tokovinin

Proceedings Volume 9908, Ground-based and Airborne Instrumentation for Astronomy VI; 99088V (2016) https://doi.org/10.1117/12.2233094
Event: SPIE Astronomical Telescopes + Instrumentation, 2016, Edinburgh, United Kingdom

Abstract

The 4.1-m SOAR telescope can play a unique role for LSST follow-up studies through an efficient use of its laser-guided Adaptive Optics Module (SAM) that routinely delivers images with FWHM <0.5” over a uniquely large 3’x3’ field of view. To exploit this platform we have conceived SAMOS, a MEMS-based slit spectrograph capable of acquiring in a few seconds single or multiple targets with extreme precision. SAMOS can capture R ~ 2,000 – 2, 500 spectra with a nominal 0:33" slit width in the 3,500-9,500 Å spectral range reaching in 3600 s median SNR=5 at AB=22.9 with the red grating and 23.5 with the blue grating, comparable to 8-m class telescopes working in seeing limited conditions. In this contribution we present the SAMOS opto-mechanical design, concept of operation and provide a few examples of compelling science programs that can uniquely benefit from SAMOS sensitivity, angular resolution, versatility and simplicity of use.

Citation Download Citation

Massimo Robberto, Megan Donahue, Zoran Ninkov, Stephen A. Smee, Robert H. Barkhouser, Mario Gennaro, and Andrei Tokovinin "SAMOS: a versatile multi-object-spectrograph for the GLAO system SAM at SOAR", Proc. SPIE 9908, Ground-based and Airborne Instrumentation for Astronomy VI, 99088V (9 August 2016); https://doi.org/10.1117/12.2233094

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