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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.
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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
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Stress-induced birefringence in the lenses of Wide-Area Linear Optical Polarimeter-South

Advances in Optical and Mechanical Technologies for Telescopes and Instrumentation V SPIE (2022) 62-62

Authors:

Ramya M Anche, Siddharth Maharana, Anamparambu N Ramaprakash, Pravin Khodade, Deepa Modi, Chaitanya Rajarshi, John A Kypriotakis, Dmitry Blinov, Hans K Eriksen, Tuhin Ghosh, Georgia V Panopoulou, Vincent Pelgrims, Raphael Skalidis, Timothy J Pearson, Eirik Gjerløw, Nikolaos Mandarakas, Vasiliki Pavlidou, Stephen Potter, Anthony CS Readhead, Konstantinos Tassis, Artem Basyrov, Katerina Papadaki, Trygve Leithe Svalheim, Ingunn Wehus
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WALOP-South: A Four-Camera One-Shot Imaging Polarimeter for PASIPHAE Survey. Paper II -- Polarimetric Modelling and Calibration

ArXiv 2208.12441 (2022)

Authors:

Siddharth Maharana, Ramya M Anche, AN Ramaprakash, Bhushan Joshi, Artem Basyrov, Dmitry Blinov, Carolina Casadio, Kishan Deka, Hans Kristian Eriksen, Tuhin Ghosh, Eirik Gjerløw, John A Kypriotakis, Sebastian Kiehlmann, Nikolaos Mandarakas, Georgia V Panopoulou, Katerina Papadaki, Vasiliki Pavlidou, Timothy J Pearson, Vincent Pelgrims, Stephen B Potter, Anthony CS Readhead, Raphael Skalidis, Trygve Leithe Svalheim, Konstantinos Tassis, Ingunn K Wehus
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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
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