Performance update of the combined GNAO plus GIRMOS imaging system based on the newly derived adaptive optics bench

• Type: Article in International Conference Proceedings Book
• Date: 2024

Authors

Lamb, M (Author) Other; Sivo, G (Author) Other; Sivanandam, S (Author) Other; Tschimmel, M (Author) Other; Scharwachter, J (Author) Other; McConnachie, A (Author) Other; Muzzin, A (Author) Other; Jouve, P (Author) Other; Correia, C (Author) FEUP

Conference proceedings International

Title: ADAPTIVE OPTICS SYSTEMS IX

Conference on Adaptive Optics Systems IX

Yokohama, JAPAN, JUN 16-22, 2024

Indexing

ISI Web of Knowledge - 0 Citations

Scopus - 1 Citation

Other information

Authenticus ID: P-017-JJ0

DOI: 10.1117/12.3019232

Abstract (EN): The GNAO facility is an upcoming adaptive optics (AO) system for the Gemini North Telescope. It will deliver both wide and narrow field AO capabilities to its first light instrument GIRMOS. GIRMOS is a multi-object AO (MOAO) instrument that houses four near infrared (NIR) IFU spectrographs and a NIR imager similar to GSAOI at Gemini South. The required sensitivity of the combined system is largely driven by rapid transient followup AO-corrected Imaging and the required sensitivity is in part driven by the performance of the AO system. Up until recently, the estimated AO performance feeding the combined GNAO+GIRMOS imaging system was derived from models using limited information on what the actual parameters will eventually be. However, the AO system (currently called the AO Bench, or AOB) recently underwent a competitive bidding process to derive an AO design that met or exceeded our AO requirements. This work summarizes the update to the combined GNAO+GIRMOS imaging system performance based on the newly designed AOB parameters. We discuss the impact due to the changes in performance, specifically with respect to key science cases of the GNAO+GIRMOS imaging system compared to the previous models of the AO system. We also discuss the largest hurdles in terms of parameters that affect performance, such as telescope vibrations and detector quantum efficiency and our plans for mitigation.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 8