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Expected Scientific Performance of the Three Spectrometers on the Extreme Ultraviolet Explorer

Published online by Cambridge University Press:  12 April 2016

J. V. Vallerga ,
P. Jelinsky ,
P. W. Vedder  and
R. F. Malina
J. V. Vallerga
Affiliation:
Space Sciences Laboratory, University of California, Berkeley, CA, USA
P. Jelinsky
Affiliation:
Space Sciences Laboratory, University of California, Berkeley, CA, USA
P. W. Vedder
Affiliation:
Space Sciences Laboratory, University of California, Berkeley, CA, USA
R. F. Malina
Affiliation:
Space Sciences Laboratory, University of California, Berkeley, CA, USA

Abstract

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The expected in-orbit performance of the three spectrometers included on the Extreme Ultraviolet Explorer (EUVE) astronomical satellite is presented. Recent calibrations of the gratings, mirrors and detectors using monochromatic and continuum EUV light sources allow the calculation of the spectral resolution and throughput of the instrument. An effective area range of 0.2 to 2.8 cm2 is achieved over the wavelength range 70-600Å with a peak spectral resolution λ/Δλ (FWHM) of ~ 360 assuming a spacecraft pointing knowledge of 10 arc seconds (FWHM). For a 40,000 sec observation, the average 3σ sensitivity to a monochromatic line source is 3 × 103 photons cm-2 sec-1. Simulated observations of known classes of EUV sources such as hot white dwarfs and cataclysmic variables are also presented.

Type
9. Future X-ray Observatories, Detectors and Instrumentation
Information
International Astronomical Union Colloquium , Volume 115: High Resolution X-ray Spectroscopy of Cosmic Plasmas , 1990 , pp. 335 - 338
Copyright
Copyright © Cambridge University Press 1990

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