@inproceedings{9c6fb267fa7842a9b41d6984ac27903d,
title = "Betelgeuse scope: Single-mode-fibers-assisted optical interferometer design for dedicated stellar activity monitoring",
abstract = "Betelgeuse has experienced a sudden shift in its brightness and dimmed mysteriously. This is likely caused by a hot blob of plasma ejected from Betelgeuse and then cooled to obscuring dust. If true, it is a remarkable opportunity to directly witness the formation of dust around a red supergiant star. Today's optical telescope facilities are not optimized for monitoring the Betelgeuse surface, so in this work, we propose a low-cost optical interferometer. The facility will consist of 12 x 4 inch optical telescopes mounted to the surface of a large radio dish for model-independent aperture synthesis imaging; polarization-maintaining single-mode fibers will carry the coherent beams from the individual optical telescopes to an all-in-one beam combiner. A fast steering mirror assisted fiber injection system guides the flux into fibers. A metrology system senses vibration-induced piston errors in optical fibers, and these errors are corrected using fast-steering delay lines. We will present the design.",
author = "Narsireddy Anugu and Morzinski, \{Katie M.\} and Josh Eisner and Ewan Douglas and Dan Marrone and Steve Ertel and Sebastiaan Haffert and Oscar Montoya and Jordan Stone and Stefan Kraus and John Monnier and Lebouquin, \{Jean Baptiste\} and Berger, \{Jean Philippe\} and Julien Woillez and Miguel Montarg{\`e}s",
note = "Publisher Copyright: {\textcopyright} COPYRIGHT SPIE. Downloading of the abstract is permitted for personal use only.; Interferometry XX 2020 ; Conference date: 24-08-2020 Through 04-09-2020",
year = "2020",
doi = "10.1117/12.2568900",
language = "English (US)",
series = "Proceedings of SPIE - The International Society for Optical Engineering",
publisher = "SPIE",
editor = "\{North Morris\}, \{Michael B.\} and Katherine Creath and Rosario Porras-Aguilar",
booktitle = "Interferometry XX",
}