Optimisation of the WEAVE target assignment algorithm

Proceedings of SPIE - International Society for Optical Engineering Society of Photo-optical Instrumentation Engineers 12184 (2022)

Authors:

Sarah Hughes, Gavin Dalton, Daniel Smith, Kenneth Duncan, David Terrett, Don Carlos Abrams, Jose Alfonso Aguerri, Georgia Bishop, Piercarlo Bonifacio, Esperanza 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,1 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 WL2 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.

Optimising IFU design for the Planetary Camera and Spectrograph (ELT-PCS): experimental overview and initial characterization

Proceedings of SPIE--the International Society for Optical Engineering SPIE, the international society for optics and photonics 12184 (2022) 121843b-121843b-11

Authors:

R Elliot Meyer, Matthias Tecza, Niranjan Thatte, Takashi Sukegawa, Tomonao Nakayasu, Masatsugu Koyama

MAJIS VIS-NIR channel: performances of the focal plane unit - flight model

Space Telescopes and Instrumentation 2022: Optical, Infrared, and Millimeter Wave SPIE (2022) 165-165

Authors:

Paolo Haffoud, Antoine Arondel, David Bolsée, Vincent Carlier, John Carter, Miriam Cisneros-González, Jean-Pierre Dubois, Cydalise Dumesnil, Gianrico Filacchione, Ludovic Gonnod, Cyrille Hannou, Véronique Hervier, Özgür Karatekin, Christian Ketchazo, Yves Langevin, Jean-Christophe Le Clec'h, Benoit Lecomte, Gilles Morinaud, Nuno Pereira, Giuseppe Piccioni, Ann Carine Vandaele, Lionel Van Laeken, Mathieu Vincendon, François Poulet

MAJIS VIS-NIR channel: performances of the spare model focal plane unit

Space Telescopes and Instrumentation 2022: Optical, Infrared, and Millimeter Wave SPIE (2022) 238-238

Authors:

Nuno Pereira, Miriam Cisneros, David Bolsée, Lionel Van Laeken, Ann-Carine Vandaele, Samuel Gissot, Yves Langevin, Paolo Haffoud, François Poulet

HARMONI at ELT: towards a final design for the Natural Guide Star Sensors system

Proceedings of SPIE--the International Society for Optical Engineering SPIE, the international society for optics and photonics 12187 (2022) 121871d-121871d-16

Authors:

K Dohlen, P Vola, Z Challita, T Morris, JF Sauvage, L Jocou, A Estrada, T Louth, W Bon, M Dubbeldam, D Montgomery, J-L Gimenez, T Viera Cuberlo, Y Charles, D Le Mignant, A Carlotti, J Pequeiras, K El Hadi, W Humphreys, B Neichel, T Fusco, F Clarke, D Melotte, N Thatte