Galaxy formation and evolution

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SDSS-IV MaNGA: The intrinsic shape of slow rotator early-type galaxies

(2018)

Authors:

Hongyu Li, Shude Mao, Michele Cappellari, Mark T Graham, Eric Emsellem, RJ Long
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Stellar populations and star formation histories of the nuclear star clusters in six nearby galaxies

(2018)

Authors:

Nikolay Kacharov, Nadine Neumayer, Anil C Seth, Michele Cappellari, Richard McDermid, C Jakob Walcher, Torsten Böker
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The role of mergers in driving morphological transformation over cosmic time

(2018)

Authors:

G Martin, S Kaviraj, JEG Devriendt, Y Dubois, C Pichon
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Galaxy Zoo: constraining the origin of spiral arms

Monthly Notices of the Royal Astronomical Society Oxford University Press (OUP) 478:1 (2018) 932-949

Authors:

Ross E Hart, Steven P Bamford, William C Keel, Sandor J Kruk, Karen L Masters, Brooke D Simmons, Rebecca J Smethurst
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Opto-mechanical designs for the HARMONI adaptive optics systems

Proceedings of SPIE SPIE 10703 (2018)

Authors:

K Dohlen, TJ Morris, J Piqueras Lopez, A Calcines-Rosario, A Costille, M Dubbeldam, K El Hadi, T Fusco, M Llored, B Neichel, S Pascal, J-F Sauvage, P Vola, Fraser Clarke, H Schnetler, I Bryson, Niranjan Thatte

Abstract:

HARMONI is a visible and near-infrared integral field spectrograph equipped with two complementary adaptive optics systems, fully integrated within the instrument. A Single Conjugate AO (SCAO) system offers high performance for a limited sky coverage and a Laser Tomographic AO (LTAO) system provides AO correction with a very high sky-coverage. While the deformable mirror performing real-time correction of the atmospheric disturbances is located within the telescope itself, the instrument contains a suite of state-of-the-art and innovative wavefront sensor systems. Laser guide star sensors (LGSS) are located at the entrance of the instrument and fed by a dichroic beam splitter, while the various natural guide star sensors for LTAO and SCAO are located close to the science focal plane. We present opto-mechanical architecture and design at PDR level for these wavefront sensor systems.
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