Share Email Print
cover

Proceedings Paper

A microshutter-based field selector for JWST's multi-object near infrared spectrograph
Author(s): Robert F. Silverberg; Richard Arendt; David E. Franz; Gunther Kletetschka; Alexander Kutyrev; Mary J. Li; S. Harvey Moseley; David A. Rapchun; Stephen Snodgrass; David W. Sohl; Leroy Sparr
Format Member Price Non-Member Price
PDF $14.40 $18.00
cover GOOD NEWS! Your organization subscribes to the SPIE Digital Library. You may be able to download this paper for free. Check Access

Paper Abstract

One of the James Webb Space Telescope's (JWST) primary science goals is to characterize the epoch of galaxy formation in the universe and observe the first galaxies and clusters of galaxies. This goal requires multi-band imaging and spectroscopic data in the near infrared portion of the spectrum for large numbers of very faint galaxies. Because such objects are sparse on the sky at the JWST resolution, a multi-object spectrograph is necessary to efficiently carry out the required observations. We have developed a fully programmable array of microshutters that will be used as the field selector for the multi-object Near Infrared Spectrograph (NIRSpec) on JWST. This device allows apertures to be opened at the locations of selected galaxies in the field of view while blocking other unwanted light from the sky background and bright sources. In practice, greater than 100 objects within the field of view can be observed simultaneously. This field selection capability greatly improves the sensitivity and efficiency of NIRSpec. In this paper, we describe the microshutter arrays, their development, characteristics, fabrication, testing, and progress toward delivery of a flight-qualified field selection subsystem to the NIRSpec instrument team.

Paper Details

Date Published: 26 September 2007
PDF: 8 pages
Proc. SPIE 6678, Infrared Spaceborne Remote Sensing and Instrumentation XV, 66780Q (26 September 2007); doi: 10.1117/12.736118
Show Author Affiliations
Robert F. Silverberg, NASA Goddard Space Flight Ctr. (United States)
Richard Arendt, Univ. of Maryland, College Park (United States)
David E. Franz, NASA Goddard Space Flight Ctr. (United States)
Gunther Kletetschka, Catholic Univ. (United States)
Alexander Kutyrev, Univ. of Maryland, College Park (United States)
Mary J. Li, NASA Goddard Space Flight Ctr. (United States)
S. Harvey Moseley, NASA Goddard Space Flight Ctr. (United States)
David A. Rapchun, Global Science and Technology (United States)
Stephen Snodgrass, MEI Technologies (United States)
David W. Sohl, NASA Goddard Space Flight Ctr. (United States)
Leroy Sparr, NASA Goddard Space Flight Ctr. (United States)


Published in SPIE Proceedings Vol. 6678:
Infrared Spaceborne Remote Sensing and Instrumentation XV
Marija Strojnik-Scholl, Editor(s)

© SPIE. Terms of Use
Back to Top