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Sökning: onr:"swepub:oai:lup.lub.lu.se:f904cee4-902e-4d8c-b162-d56f2fb1b2a9" > Instruments for a E...

LIBRIS Formathandbok  (Information om MARC21)
FältnamnIndikatorerMetadata
00003909naa a2200397 4500
001oai:lup.lub.lu.se:f904cee4-902e-4d8c-b162-d56f2fb1b2a9
003SwePub
008160404s2004 | |||||||||||000 ||eng|
0247 a https://lup.lub.lu.se/record/5284682 URI
0247 a https://doi.org/10.1117/12.5514732 DOI
040 a (SwePub)lu
041 a engb eng
042 9 SwePub
072 7a kon2 swepub-publicationtype
072 7a ref2 swepub-contenttype
1001 a Russell, Adrian P.4 aut
2451 0a Instruments for a European Extremely Large Telescope: the challenges of designing instruments for 30- to 100-m telescopes
264 1b SPIE,c 2004
520 a Designs for Extremely Large Telescopes (ELTs) are quite well advanced,but the requirements of instruments have had limited impact. Sinceprovision of a suitable environment for instruments is a critical aspectof all telescopes, we outline some well-known and some less-appreciatedchallenges of designing instruments for ELTs. A wide-field spectrometer(WFSPEC) with ~10 arcmin field-of-view, probably with AO correction ofground-layer seeing, illustrates the well-known difficulty of matchingmodern detector pixels to large (~0."3) images. The challenges ofexploiting wide-field (1'-2' FOV) high-performance AO systems on ELTsare illustrated by a Multi-Object Multi-field Spectrometer and Imager(MOMSI), which provides imaging and integral-field spectroscopy, atnear-diffraction-limited pixel scales, of targets in approximately 300subfields each. This instrument, roughly equivalent to all theastronomical spectrometers yet built, extracts ~200 times less of theavailable information from the ELT's FOV than near-future instruments on8-m class telescopes will do for their hosts. We emphasise the greatsize of such instruments (40-100 tonnes, 100-200 m3) and the need toaccommodate this size in telescope plans. A third area of challenge isthe exploitation of the potential capabilities of ELTs in the mid-IR,where they would offer powerful complements to JWST and ALMA;low-emissivity telescope designs and, possibly, cryogenic AO, may beneeded. Finally, we outline the potential challenges of correctingatmospheric dispersion effects.
650 7a NATURVETENSKAPx Fysikx Astronomi, astrofysik och kosmologi0 (SwePub)103052 hsv//swe
650 7a NATURAL SCIENCESx Physical Sciencesx Astronomy, Astrophysics and Cosmology0 (SwePub)103052 hsv//eng
7001 a Monnet, Guy4 aut
7001 a Quirrenbach, Andreas4 aut
7001 a Bacon, Roland4 aut
7001 a Redfern, Michael4 aut
7001 a Andersen, Torbenu Lund University,Lunds universitet,Astronomi - Genomgår omorganisation,Institutionen för astronomi och teoretisk fysik - Genomgår omorganisation,Naturvetenskapliga fakulteten,Lund Observatory - Undergoing reorganization,Department of Astronomy and Theoretical Physics - Undergoing reorganization,Faculty of Science4 aut0 (Swepub:lu)astr-tan
7001 a Ardeberg, Arneu Lund University,Lunds universitet,Astronomi - Genomgår omorganisation,Institutionen för astronomi och teoretisk fysik - Genomgår omorganisation,Naturvetenskapliga fakulteten,Lund Observatory - Undergoing reorganization,Department of Astronomy and Theoretical Physics - Undergoing reorganization,Faculty of Science4 aut0 (Swepub:lu)astr-aar
7001 a Atad-Ettedgui, Eli4 aut
7001 a Hawarden, Timothy G.4 aut
7001 a Moorwood, Alan F. M.4 edt
7001 a Iye, Masanori4 edt
7102 a Astronomi - Genomgår omorganisationb Institutionen för astronomi och teoretisk fysik - Genomgår omorganisation4 org
7730 t Ground-based instrumentation for astronomy (Proceedings of the SPIE)d : SPIEg 5492, s. 1796-1809q 5492<1796-1809z 0819454249
8564 u http://dx.doi.org/10.1117/12.551473y FULLTEXT
8564 8u https://lup.lub.lu.se/record/528468
8564 8u https://doi.org/10.1117/12.551473

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