HARMONI at ELT: tolerance analysis and expected as-build imaging performance of the infrared spectrograph

Proceedings of SPIE--the International Society for Optical Engineering SPIE, the international society for optics and photonics 13096 (2024) 130964w-130964w-14

Authors:

Eduard R Muslimov, Edgar Castillo-Domínguez, James Kariuki, Jorge Chao-Ortiz, Matthias Tecza, Elliot Meyer, Zeynep Ozer, Fraser Clarke, Niranjan Thatte

Improving polarimetric accuracy of RoboPol to $<$ 0.05 % using a half-wave plate calibrator system

ArXiv 2407.1347 (2024)

Authors:

Siddharth Maharana, Dmitry Blinov, AN Ramaprakash, Vasiliki Pavlidou, Konstantinos Tassis

MOSAIC at the ELT: a unique instrument for the largest ground-based telescope

Proceedings Volume 13096, Ground-based and Airborne Instrumentation for Astronomy X Society of Photo-optical Instrumentation Engineers (2024)

Authors:

Roser Pelló, Mathieu Puech, Éric Prieto, Gavin B Dalton, Ian Lewis, Louis Gabarra, Adam Lowe, Ellen Schallig, Jurgen Schmoll, David Terrett, Alec York

Abstract:

MOSAIC is the Multi-Object Spectrograph (MOS) for the 39m Extremely Large Telescope (ELT) of the European Southern Observatory (ESO), with unique capabilities in terms of multiplex, wavelength coverage and spectral resolution. It is a versatile multi-object spectrograph working in both the Visible and NIR domains, designed to cover the largest possible area (∼40 arcmin2) on the focal plane, and optimized to achieve the best possible signal-to-noise ratio on the faintest sources, from stars in our Galaxy to galaxies at the epoch of the reionization. In this paper we describe the main characteristics of the instrument, including its expected performance in the different observing modes. The status of the project will be briefly presented, together with the positioning of the instrument in the landscape of the ELT instrumentation. We also review the main expected scientific contributions of MOSAIC, focusing on the synergies between this instrument and other major ground-based and space facilities.

Polycyclic aromatic hydrocarbon emission in galaxies as seen with JWST

Monthly Notices of the Royal Astronomical Society Oxford University Press (OUP) 532:2 (2024) 1598-1611

Authors:

D Rigopoulou, FR Donnan, I García-Bernete, M Pereira-Santaella, A Alonso-Herrero, R Davies, LK Hunt, PF Roche, T Shimizu

FiberPol-6D: Spectropolarimetric Integral Field mode for the SAAO 1.9 m Telescope using fibers

ArXiv 2406.19124 (2024)

Authors:

Siddharth Maharana, Sabyasachi Chattopadhyay, Matthew Bershady