Optimisation of the WEAVE target assignment algorithm

Ground-based and Airborne Instrumentation for Astronomy IX Proc. SPIE 12184 (2022) 121846J

Authors:

Sarah Hughes, Gavin Dalton, Daniel Smith, Kenneth Duncan, David Terrett, Don Carlos Abrams, J. Alfonso Aguerri, Marc Balcells, Georgia Bishop, Piercarlo Bonifacio, Esperansa Carrasco, Shoko Jin, Ian Lewis, Scott Trager, Antonella Vallenari

Abstract:

WEAVE is the new wide-field spectroscopic facility for the prime focus of the William Herschel Telescope in La Palma, Spain. Its fibre positioner is essential for the accurate placement of the spectrograph's ~960-fibre multiplex. To maximise the assignment of its optical fibres, WEAVE uses a simulated annealing algorithm called Configure, which allocates the fibres to targets in the field of view. We have conducted an analysis of the algorithm's behaviour using a subset of mid-tier WEAVE LOFAR fields, and adjusted the priority assignment algorithm to optimise the total fibres assigned per field, and the assignment of fibres to the higher priority science targets. The output distributions have been examined, to investigate the implications for the WEAVE science teams.

Practical implementation of the complex wavefront modulation model for optical alignment

Proceedings of SPIE - The International Society for Optical Engineering 6617 21-21

Authors:

H Lee, GB Dalton, IAJ Tosh, S Kim

Results of the Gemini Deep Planet Survey -- Constraints on the Existence of Planets on Wide Orbits

Proceedings of the conference In the Spirit of Bernard Lyot, UCB

Authors:

D Lafreniere, R Doyon, C Marois, D Nadeau, BR Oppenheimer, PF Roche, F Rigaut

Silicon Monoxide in Supernova SN1987A

Proceedings of the 150th IAU Symposium

Authors:

PF Roche, CH Smith, DK Aitken

Spatially resolved observations of the unidentified dust features in BD +30°3639

IAU Symposium No. 131

Authors:

PF Roche, CH Smith, DK Aitken