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News Article | May 20, 2017

The star cluster Hodge 301 is 20 million to 25 million years old. Hodge 301 is home to many aging, red supergiant stars, indicating the cluster is older. Roughly 40 massive stars already have exploded as supernovas. The expanding wave of debris is slamming into gas ejected by stars in R136, creating a ridge of star formation between the two clusters. The fledgling stars are embedded in dense gas and cannot be seen. 30 Doradus is the brightest, nearby star-forming region and home to the most massive stars in our cosmic neighborhood of about 25 galaxies. The nebula is close enough to Earth that Hubble can resolve individual stars, giving astronomers important information about the stars' birth and evolution. 30 Doradus resides 170,000 light-years away in the Large Magellanic Cloud, a small, satellite galaxy of our Milky Way. Credits - NASA, ESA, D. Lennon and E. Sabbi (ESA/STScI), J. Anderson, S. E. de Mink, R. van der Marel, T. Sohn, and N. Walborn (STScI), N. Bastian (Excellence Cluster, Munich), L. Bedin (INAF, Padua), E. Bressert (ESO), P. Crowther (University of Sheffield), A. de Koter (University of Amsterdam), C. Evans (UKATC/STFC, Edinburgh), A. Herrero (IAC, Tenerife), N. Langer (AifA, Bonn), I. Platais (JHU), and H. Sana (University of Amsterdam) Please follow SpaceRef on Twitter and Like us on Facebook.

Arribas S.,CSIC - Institute for the Structure of Matter | Thatte N.A.,University of Oxford | Tecza M.,University of Oxford | Goodsall T.,University of Oxford | And 10 more authors.
Proceedings of SPIE - The International Society for Optical Engineering | Year: 2010

HARMONI has been conceived as a workhorse visible and near-infrared (0.47-2.45 microns) integral field spectrograph for the European Extremely Large Telescope (E-ELT). It provides both seeing and diffraction limited observations at several spectral resolutions (R= 4000, 10000, 20000). HARMONI can operate with almost any flavor of AO (e.g. GLAO, LTAO, SCAO), and it is equipped with four spaxel scales (4, 10, 20 and 40 mas) thanks to which it can be optimally configured for a wide variety of science programs, from ultra-sensitive observations of point sources to highangular resolution spatially resolved studies of extended objects. In this paper we describe the expected performance of the instrument as well as its scientific potential. We show some simulated observations for a selected science program, and compare HARMONI with other ground and space based facilities, like VLT, ALMA, and JWST, commenting on their synergies and complementarities. © 2010 Copyright SPIE - The International Society for Optical Engineering.

Strachan M.,UKATC | Myers R.,Durham University | Cooke K.,Teer Coatings Ltd | Hampshire J.,Teer Coatings Ltd | And 7 more authors.
Proceedings of SPIE - The International Society for Optical Engineering | Year: 2010

Adaptive optic requirements for instrumentation such as EAGLE for the European extremely large telescope present an enormous challenge to deformable mirror technology. We have developed a unique approach using fabricated arrays of multilayer actuator technology to address the requirements of actuator density and deflection. Our programme of work has uncovered a novel approach which has led to a built in test capability. We will present the outcomes of our work which we believe will lead to a compact deformable mirror. © 2010 SPIE.

Stobie B.,UKATC | Jeffers P.,Advanced Technology Solar Telescope | Stewart M.,Sulaire Systems | Foster A.,Observatory science Ltd. | Delgadillo J.,The VERTEX
Proceedings of SPIE - The International Society for Optical Engineering | Year: 2010

The VISTA Telescope1 is obtaining superb survey images. The M1 support system is essential to image quality and uses astatic pneumatic supports to balance the M1 against the varying effects of gravity and wind, with four axes being actively controlled via software and CANbus. The system also applies externally determined active optics force patterns. The mechanical, electronic, software and control design and as-built operation of the system are described, with the practical design points discussed. © 2010 SPIE.

Atad-Ettedgui E.,UKATC | Dickson C.,UKATC | Beard S.,UKATC | Gao X.,UKATC | And 3 more authors.
Proceedings of SPIE - The International Society for Optical Engineering | Year: 2010

The most challenging of the metrology needs of multi-objects instruments is the registration of the pupil on the deformable mirror which corrects the wavefront errors. Pick-off mirrors in multi-objects instruments and specially spectrographs (MOS) require accurate positioning and simultaneous viewing of the pupil on the deformable mirror (DM) and the focal plane image on the image slicer at the sub-micron level. A laboratory test prototype simulating the telescope (E-ELT), the beam steering mirror (BSM) and the pupil imaging mirror (PIM), is presented to confirm the correct positioning of the pupil on the DM and to provide the movements of the moveable optical elements to achieve it. The opto-mechanical design and testing of this prototype is shown. The BSM stages (Goniometric cradle, Rotation, & Linear) provide the key mechanical system elements, with precision alignment, resolution, and repeatability. The design and behaviour of the control system is discussed; the ultimate aim of which is to adjust the BSM and PIM to correct for any slight mis-positioning of the pick-off mirror and any temporal drift of all the components to achieve the required alignment. The control system can also cope with flexure effects when required. © 2010 SPIE.

Lightfoot J.F.,U.K.A.T.C. | Juanola-Parramon R.,University College London | Savini G.,University College London
Hyperspectral Imaging and Sounding of the Environment, HISE 2015 | Year: 2015

FIInS is a Python software package developed to simulate the performance of a Double Fourier Interferometer in space. FIInS will 'observe' a model sky and incorporate the physics and errors expected from a real system. © OSA 2015.

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