7 March 2003 Multi-object high-resolution echellette spectroscopy with IMACS
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Abstract
By adding a prism-cross-dispersed echellette grating as an optional module to the Inamori Magellan Areal Camera and Spectrograph (IMACS), complete spectra from 3400 to 11000Å of 15 simultaneous objects may be achieved with a resolution of R = 21,000 for a projected 0.5-arcsec slit width and a 5.0-arcsec slit length. The additional cost of this module is on the order of $50,000. This echellette module (IMACS-E) is intended for studies of stellar abundances where the targets are sufficiently dense over the 15 arcmin IMACS field of view to take advantage of the multi-slit capability. Such applications include the study of Galactic bulge stars, stars in local group galaxies, stars in Galactic globular and open clusters, and the integrated light of extra-galactic globular cluster systems.
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Brian M. Sutin, Andrew McWilliam, "Multi-object high-resolution echellette spectroscopy with IMACS", Proc. SPIE 4841, Instrument Design and Performance for Optical/Infrared Ground-based Telescopes, (7 March 2003); doi: 10.1117/12.461438; https://doi.org/10.1117/12.461438
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KEYWORDS
Stars

Galactic astronomy

Chemical elements

Cameras

Prisms

Chemical analysis

Spectrographs

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