D. Andersen
Herzberg Institute of Astrophysics
5 Papers
80 Citations
D. Andersen is an academic researcher from Herzberg Institute of Astrophysics. The author has contributed to research in topics: Adaptive optics & Bulge. The author has an hindex of 4, co-authored 5 publications.
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Papers
NFIRAOS: TMT narrow field near-infrared facility adaptive optics
Glen Herriot,Paul Hickson,Brent Ellerbroek,D. Andersen,T. J. Davidge,Darren Erickson,I. P. Powell,Richard Clare,L. Gilles,Corinne Boyer,Malcolm Smith,L. Saddlemyer,Jean-Pierre Véran +12 more
TL;DR: The Narrow-Field Infrared Adaptive Optics System (NFIRAOS) as discussed by the authors uses two deformable mirrors in series to provide sufficient stroke for atmospheric correction over the 30 m telescope aperture, but mainly to improve sky coverage by sharpening near-IR natural guide stars over a 2 arcminute diameter "technical" field.
Using the multi-object adaptive optics demonstrator RAVEN to observe metal-poor stars in and towards the Galactic Centre
Masen Lamb,Masen Lamb,K. A. Venn,D. Andersen,Shin Oya,Matthew Shetrone,Azadeh Fattahi,L. M. Howes,L. M. Howes,Martin Asplund,Olivier Lardière,Masayuki Akiyama,Yoshito Ono,Hiroshi Terada,Yutaka Hayano,G. Suzuki,Celia Blain,Kate Jackson,Carlos Correia,K. Youakim,Colin Bradley +20 more
TL;DR: The chemical abundances for five metal-poor stars in and towards the Galactic bulge have been determined from the H-band infrared spectroscopy taken with the RAVEN multi-object adaptive optics science demonstrator and the Infrared Camera and Spectrograph at the Subaru 8.2m telescope.
Final opto-mechanical design of Raven, a MOAO science demonstrator for Subaru
Olivier Lardière,Reston Nash,J.-P. Markes,D. Andersen,Colin Bradley,Celia Blain,Ron Desmarais,Darryl Gamroth,Meguru Ito,Kate Jackson,Przemek Lach,Laurie Pham +11 more
TL;DR: The optical design and its performance, as well as the mechanical design are presented, are presented in detail.
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Design and test results of the calibration unit for the MOAO demonstrator RAVEN
J.-F. Lavigne,Frédéric Lamontagne,Geneviève Anctil,Min Wang,Mathieu Tremblay,Olivier Lardière,Reston Nash,D. Andersen,Maxime Savard,Patrick Côté,Colin Bradley,François Châteauneuf +11 more
TL;DR: The Raven Multi-Object Adaptive Optics demonstrator calibration unit consists in a telescope simulator that will allow aligning Raven's components during its integration, testing its Adaptive optics performances in the laboratory and at the telescope, and calibrating the AdaptiveOptics system by building the interaction matrix and measuring the non-common path aberrations.
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'Imaka: working towards very wide-field of view AO
Mark Chun,Olivier Lai,Jean-Charles Cuillandre,Harvey B. Richer,D. Toomey,Derrick Salmon,R. G. Carlberg,D. Andersen,D. Burgarella,Kevin Ho,John Pazder,Emmanuel Bertin +11 more
TL;DR: In this article, the 'Imaka team is working toward an instrument that takes advantage of the one-degree field of view afforded by Mauna Kea, which is a pivotal result since GLAO science cases benefit from the largest possible corrected fields of view, potentially 2-3 orders of magnitude larger than has been demonstrated to date.
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