ATLAS: a Cassegrain spectrograph based on volume phase holographic gratings

Дата и время публикации : 2000-06-27T05:40:56Z

Авторы публикации и институты :
J. G. Robertson (AAO and U Sydney)
K. Taylor (AAO)
I. K. Baldry (AAO)
P. R. Gillingham (AAO)
S. C. Barden (NOAO)

Оригинал статьи :

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Коментарии к статье: 9 pages, 6 figures, postscript from MS Word. To be published in Proc. SPIE Conf. 4008 on ‘Optical and IR Telescope Instrumentation and Detectors’ held in Munich, March 2000
Первичная категория: astro-ph

Все категории : astro-ph

Краткий обзор статьи: We are proposing a new spectrograph (ATLAS) which would revolutionise intermediate-dispersion observations at the AAT. Based on the new technology of Volume Phase Holographic gratings, and using transmission optics, ATLAS offers high throughput and a wide field (24′). It will be ideally suited to extensive surveys of faint objects. It has been designed with a collimated beam diameter of 150 mm, giving resolution lambda/delta lambda up to nearly 10,000 with a 1.5 arcsecond slit and good efficiency. It will be a dual-beam instrument, to maximise observing speed and allow optimised optical coatings to be used. The project is working towards its Concept Design Review which will occur during 2000.

Category: Physics