2024/06/21 by Nitish Singh, Singh, Nitish, S. Sriram +5
Chemistry · Engineering · Physics and Astronomy · #Astronomy and Astrophysical Research #FOS: Physical sciences #Instrumentation and Methods for Astrophysics (astro-ph.IM) #Laser Design and Applications #Spectroscopy and Laser Applications
paper · pdf · doi:10.48550/arxiv.2406.15592
openalex publication_date 2024/06/21 · openalex created_date 2024/06/26 · openalex updated_date 2026/07/28
In fiber-based spectroscopy within telescopes, a prevailing limitation has been the necessity to align the fiber diameter with the telescope's seeing conditions, often characterized by the Full Width at Half Maximum of the point spread function. This alignment constraint captures around 50 % of the incoming flux from any point source. Furthermore, the challenge is compounded when high-resolution spectroscopy is in play, as it often demands a minute slit width, further exacerbating flux loss. The essence of this paper lies in a comprehensive exploration, accomplished through theoretical simulations, of strategies aimed at enhancing the coupling efficiency of high-resolution spectrographs. The primary objective is to bolster the flux capture without compromising the critical aspect of spectral resolution. This research endeavors to unlock the potential for more effective utilization of high-resolution spectrographs to study celestial objects.