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Proceedings Paper

IMAPS: A High-Resolution, Echelle Spectrograph To Record Far-Ultraviolet Spectra Of Stars From Sounding Rockets
Author(s): E. B. Jenkins; C. L. Joseph; D. Long; P. M. Zucchino; G. R. Carruthers; M. Bottema; W. A. Delamere
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Paper Abstract

We have incorporated contemporary grating and detector technologies into the design of a new sounding rocket payload which consists of a slitless, objective grating spectrograph with no transmission elements in the opti-cal train (or detector). Built several years ago, this instrument has an effective collecting area of about 4 cm2 and can record spectra of point-like sources at a wavelength resolution of 0.004Å (profile FWITM) and with a sample interval (pixel width) of 0.002Å. It is designed to give continuous coverage over the wavelength range 950 < X < 1150A, a region of immense importance to our research on the interstellar medium. The instrument, called the Interstellar Medium Absorption Profile Spectrograph (IMAPS), has flown on a Black Brant rocket and obtained a spectrum of superb quality on an early-type star, π Scorpii. Data obtained on this flight also demonstrated the excellent response of our imaging detector, which uses an electron-bombarded CCD to register individual photoevents.

Paper Details

Date Published: 16 August 1988
PDF: 17 pages
Proc. SPIE 0932, Ultraviolet Technology II, (16 August 1988); doi: 10.1117/12.946893
Show Author Affiliations
E. B. Jenkins, Princeton University Observatory (United States)
C. L. Joseph, Princeton University Observatory (United States)
D. Long, Princeton University Observatory (United States)
P. M. Zucchino, Princeton University Observatory (United States)
G. R. Carruthers, U. S. Naval Research Laboratory (United States)
M. Bottema, Ball Aerospace Systems Division (United States)
W. A. Delamere, Ball Aerospace Systems Division (United States)

Published in SPIE Proceedings Vol. 0932:
Ultraviolet Technology II
Robert E. Huffman, Editor(s)

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