539. The Extreme Ultraviolet Explorer Mission: Overview and Initial Results (Haisch, 1993)

Abstract

The successful launch of the NASA Extreme Ultraviolet Explorer on June 7, 1992, is the culmination of nearly 30 years of effort at the University of California at Berkeley to open up the field of extreme ultraviolet astronomy. We present a brief introduction to this field and an overview of the satellite instrumentation to provide the context for this set of articles discussing the design and operation of the mission and the analysis of the data.

Paper

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Tables

• Table 1: Instrument Passbands (see Paper)

Figures

• Figure 1 (6kbyte gif) : The three basic modules composing the Extreme Ultraviolet Explorer.
• Figure 2: Cross-sectional schematic of the two Wolter-Schwarzschild survey telescopes: the shorter wavelength (a) and the longer-wavelength (b) configurations.
• Figure 3 (12kbyte gif) : During the all-sky survey, the spacecraft rotates about the spin axis, letting the three survey telescopes sweep out a great circle on the sky while the Deep Survey telescope images the ecliptic. As the spin axis precesses the entire sky is imaged in six months, and a 2x18 degree swath along the ecliptic is deeply exposed.
• Figure 4 (7kbyte gif) : Schematic illustration of the two grazing-incidence mirrors and the variable line-space grating composing one of the three spectrometers.
• Figure 5 (11kbyte gif) : The short-wavelength spectrum of the flare star AU Mic showing qui- escent coronal emission (light) and a flare (heavy) that took place during the exposure.