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X-ray variability in the Orion nebula

Published online by Cambridge University Press:  23 September 2016

Jean-Pierre Caillault  and
Saeid Zoonematkermani
Jean-Pierre Caillault
Affiliation:
Department of Physics and Astronomy University of Georgia Athens, Georgia 30602 USA
Saeid Zoonematkermani
Affiliation:
Columbia Astrophysics Laboratory Columbia University New York, New York 10027 USA

Abstract

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We have examined each of the 172 EINSTEIN X–ray sources in Orion for both short (100–10,000 seconds) and long (1 day to 2 years) timescale variability. No strong flares were seen in 75,000 total seconds of observations. We compare the Orion variability results with those from the ρ Oph star–forming region, solar X–ray flares and dMe U–band flares.

Type
I Flare Stars Optical Observations and Flare Statistics
Information
Symposium - International Astronomical Union , Volume 137: Flare Stars in Star Clusters, Association and Solar Vicinity , 1990 , pp. 159 - 162
Copyright
Copyright © Kluwer 1990 

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