Astronomical instrumentation

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Measurement of inclusive jet and dijet cross sections in proton-proton collisions at 7 TeV centre-of-mass energy with the ATLAS detector

ArXiv 1009.5908 (2010)
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Search for Quark Contact Interactions in Dijet Angular Distributions in pp Collisions at sqrt(s) = 7 TeV Measured with the ATLAS Detector

ArXiv 1009.5069 (2010)
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Fibre positioning revisited: The use of an off-the-shelf assembly robot for OPTIMOS-EVE

Proceedings of SPIE - The International Society for Optical Engineering 7739 (2010)

Authors:

GB Dalton, MS Whalley, O Mounissamy, EC Sawyer, IAJ Tosh, DL Terrett, IJ Lewis

Abstract:

The OPTIMOS-EVE instrument proposed for the E-ELT aims to use the maximum field of view available to the E-ELT in the limit of natural or ground-layer-corrected seeing for high multiplex fibre-fed multi-object spectroscopy in the visible and near-IR. At the bare nasmyth focus of the telescope, this field corresponds to a focal plane 2.3m in diameter, with a plate-scale of ∼3mm/arcsec. The required positioning accuracy that is implied by seeing limited performance at this plate-scale brings the system into the range of performances of commercial off-the-shelf robots that are commonly used in industrial manufacturing processes. The cost-benefits that may be realized through such an approach must be offset against the robot performance, and the ease with which a useful software system can be implemented. We therefore investigate whether the use of such a system is indeed feasible for OPTIMOS-EVE, and the possibilities of extending this approach to other instruments that are currently in the planning stage. © 2010 SPIE.
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GYES, a multifibre spectrograph for the CFHT

(2010)

Authors:

P Bonifacio, S Mignot, J-L Dournaux, P François, E Caffau, F Royer, C Babusiaux, F Arenou, C Balkowski, O Bienaymé, D Briot, R Carlberg, M Cohen, GB Dalton, B Famaey, G Fasola, Y Frémat, A Gómez, M Haywood, V Hill, J-M Huet, D Katz, D Horville, R Kudritzky, R Lallement, Ph Laporte, P de Laverny, B Lemasle, IJ Lewis, C Martayan, R Monier, D Mourard, N Nardetto, A Recio Blanco, N Robichon, AC Robin, M Rodrigues, C Soubiran, C Turon, K Venn, Y Viala
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The C-Band All-Sky Survey: Instrument design, status, and first-look data

Proceedings of SPIE - The International Society for Optical Engineering 7741 (2010)

Authors:

OG King, C Copley, R Davies, R Davis, C Dickinson, YA Hafez, C Holler, JJ John, JL Jonas, ME Jones, JP Leahy, SJC Muchovej, TJ Pearson, ACS Readhead, MA Stevenson, AC Taylor

Abstract:

The C-Band All-Sky Survey (C-BASS) aims to produce sensitive, all-sky maps of diffuse Galactic emission at 5 GHz in total intensity and linear polarization. These maps will be used (with other surveys) to separate the several astrophysical components contributing to microwave emission, and in particular will allow an accurate map of synchrotron emission to be produced for the subtraction of foregrounds from measurements of the polarized Cosmic Microwave Background. We describe the design of the analog instrument, the optics of our 6.1 m dish at the Owens Valley Radio Observatory, the status of observations, and first-look data. © 2010 SPIE.
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