Snap Telescope

M Sholl, M Lampton, G Aldering, W Althouse,R Amanullah, J Annis, P Astier, C Baltay,E Barrelet, S Basa, C Bebek,L Bergstrom,G Bernstein,M Bester, B Bigelow, R Blandford, R Bohlin, A Bonissent,C Bower, M Brown, M Campbell, W Carithers, E Commins, W Craig,C Day, F Dejongh, S Deustua, T Diehl,S Dodelson,A Ealet, R Ellis, W Emmet, D Fouchez, J Frieman, A Fruchter,D Gerdes, L Gladney,G Goldhaber,A Goobar, D Groom, H Heetderks,M Hoff,S Holland, M Huffer, L Hui,D Huterer,B Jain, P Jelinsky, A Karcher,S Kahn,S Kent, A Kim,W Kolbe, B Krieger, G Kushner, N Kuznetsova,R Lafever,J Lamoureux,O Le Fevre,M Levi, P Limon, H Lin, E Linder, S Loken,W Lorenzon,R Malina, J Marriner,P Marshall,R Massey, A Mazure,T Mckay,S Mckee,R Miquel,N Morgan, E Mortsell, N Mostek,S Mufson,J Musser,P Nugent,H Oluseyi, R Pain,N Palaio,D Pankow, J Peoples, S Perlmutter, E Prieto,D Rabinowitz,A Refregier,J Rhodes,N Roe,D Rusin, V Scarpine,M Schubnell, G Smadja,Rm Smith,G Smoot,J Snyder, A Spadafora, A Stebbins,C Stoughton,A Szymkowiak, G Tarle,K Taylor,A Tilquin,A Tomasch,D Tucker,D Vincent,H Von Der Lippe, J Walder, G Wang,W Wester

OPTICAL, INFRARED, AND MILLIMETER SPACE TELESCOPES, PTS 1-3（2004）

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摘要

Mission requirements, the baseline design, and optical systems budgets for the SuperNova/Accelerafion Probe (SNAP) telescope are presented. SNAP is a proposed space-based experiment designed to study dark energy and alternate explanations of the acceleration of the universe's expansion by performing a series of complementary systematics-controlled astrophysical measurements. The goals of the mission are a Type la supernova Hubble diagram and a wide-field weak gravitational lensing survey. A 2m widefield three-mirror telescope feeds a focal plane consisting of 36 CCDs and 36 HgCdTe detectors and a high-efficiency, low resolution integral field spectrograph. Details of the maturing optical system, with emphasis on structural stability during terrestrial testing as well as expected environments during operations at L2 are discussed. The overall stray light mitigation system, including illuminated surfaces and visible objects are also presented.

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关键词

three-mirror telescopes, space astronomy, dark energy, wide-field imaging

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