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EURD: An Extreme Ultraviolet Spectrograph to Probe the Hot Interstellar Medium

Published online by Cambridge University Press:  12 April 2016

C. Morales ,
J. Trapero ,
J.F. Gómez ,
S. Bowyer ,
J. Edelstein  and
M. Lampton
C. Morales
Affiliation:
Laboratorio de Astrofísica Espacial y Física Fundamental, INTA, Apdo. Correos 50727, 28080 Madrid, Spain
J. Trapero
Affiliation:
Laboratorio de Astrofísica Espacial y Física Fundamental, INTA, Apdo. Correos 50727, 28080 Madrid, Spain Instituto de Astrofísica de Andalucía, CSIC, Apdo. Correos 3004, 18080 Granada, Spain
J.F. Gómez
Affiliation:
Laboratorio de Astrofísica Espacial y Física Fundamental, INTA, Apdo. Correos 50727, 28080 Madrid, Spain
S. Bowyer
Affiliation:
Space Sciences Laboratory, University of California, Berkeley, CA 94720-7304, USA
J. Edelstein
Affiliation:
Space Sciences Laboratory, University of California, Berkeley, CA 94720-7304, USA
M. Lampton
Affiliation:
Space Sciences Laboratory, University of California, Berkeley, CA 94720-7304, USA

Abstract

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The EURD instrument has been designed to measure diffuse emission in the extreme ultraviolet (350–1100 Å). This new design provides an unprecedented 4–5 Å spectral resolution and 200 photons/sec/cm2/sr sensitivity after only 100 hours of observations. One of the goals of this project is to search for spectral lines of highly ionized species from the high temperature component (105 – 106 K) of the interstellar medium that fills the Local Bubble. It is expected that EURD will detect lines due to a thermalized hot component of the interstellar medium, and it will also provide critical diagnostics of the physical properties of this gas. With EURD data we could also detect a spectral line due to the decay of massive neutrinos as well as study oxygen lines from the upper atmosphere airglow. EURD is on board the Spanish MINISAT-01 satellite.

Type
Part II UV and Soft X-ray Observations of the LISM
Information
International Astronomical Union Colloquium , Volume 166: The Local Bubble and Beyond , 1997 , pp. 41 - 44
Copyright
Copyright © Springer-Verlag 1998

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