تقرير
Betelgeuse scope: Single-mode-fibers-assisted optical interferometer design for dedicated stellar activity monitoring
| العنوان: | Betelgeuse scope: Single-mode-fibers-assisted optical interferometer design for dedicated stellar activity monitoring |
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| المؤلفون: | Anugu, Narsireddy, Morzinski, Katie M., Eisner, Josh, Douglas, Ewan, Marrone, Dan, Ertel, Steve, Haffert, Sebastiaan, Montoya, Oscar, Stone, Jordan, Kraus, Stefan, Monnier, John, Lebouquin, Jean-Baptiste, Berger, Jean-Philippe, Woillez, Julien, Montargès, Miguel |
| سنة النشر: | 2020 |
| المجموعة: | Astrophysics |
| مصطلحات موضوعية: | Astrophysics - Instrumentation and Methods for Astrophysics |
| الوصف: | Betelgeuse has gone through 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 time-evolution monitoring of the Betelgeuse surface, so in this work, we propose a low-cost optical interferometer. The facility will consist of $12 \times 4$ inch optical telescopes mounted on the surface of a large radio dish for interferometric 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. Comment: Presented at SPIE Optics+Photonics conference, 9 pages, 3 figures |
| نوع الوثيقة: | Working Paper |
| DOI: | 10.1117/12.2568900 |
| URL الوصول: | http://arxiv.org/abs/2010.04243 |
| رقم الأكسشن: | edsarx.2010.04243 |
| قاعدة البيانات: | arXiv |
| DOI: | 10.1117/12.2568900 |
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