ORCID
0009-0003-8499-6246
Keywords
PolyOculus, Astrophotonics, T CrB, recurrent novae, stellar astrophysics, spectroscopy
Abstract
This dissertation presents advancements in Astrophotonics with a focus on PolyOculus technology - a novel, scalable approach to astronomical instrumentation designed to enhance observational capabilities in a cost-effective manner. It details the development of the Original PolyOculus Array (OPA), its integrated light-combining device (the photonic lantern), and its dedicated spectrograph, OPASpec. In parallel, the final commissioning of the MIRADAS Near-Infrared spectrograph is described. These instrumental innovations are applied to key astrophysical investigations, including the search for coronal mass ejections on M-dwarfs and time-resolved spectroscopic monitoring of T Coronae Borealis during its pre-eruption phase. By combining cutting-edge instrument design with cross-institutional collaboration, this work contributes to the evolving landscape of ground-based Astrophotonics in support of stellar astrophysics.
Completion Date
2025
Semester
Summer
Committee Chair
Eikenberry, Stephen
Degree
Doctor of Philosophy (Ph.D.)
College
College of Sciences
Department
Physics
Format
Identifier
DP0029594
Language
English
Document Type
Thesis
Campus Location
Orlando (Main) Campus
STARS Citation
Moraitis, Christina D., "Advancing Ground-Based Instrumentation with Astrophotonics for Stellar Astrophysics and Time-Domain Spectroscopy" (2025). Graduate Thesis and Dissertation post-2024. 353.
https://stars.library.ucf.edu/etd2024/353