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Non-Equilibrium Ionization in Puppis A

Published online by Cambridge University Press:  04 August 2017

P. F. Winkler ,
C. R. Canizares  and
B. C. Bromley
P. F. Winkler
Affiliation:
Department of Physics, Middlebury College
C. R. Canizares
Affiliation:
Department of Physics and Center for Space Research Massachusetts Institute of Technology Alfred P. Sloan Research Fellow
B. C. Bromley
Affiliation:
Department of Physics, Middlebury College

Abstract

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High resolution X-ray spectroscopy of the brightest knot of emission in the Puppis A supernova remnant shows that it is made up of ionizing plasma, far from equilibrium. Flux measurements in several X-ray lines enable us to determine the non-equilibrium conditions: electron temperature, ion populations, and time since the knot was heated by the supernova shock. Imaging and spectroscopic data from the Einstein Observatory together suggest that this knot is a cloud of density about 10 cm−3 which has recently been shocked to a temperature 7 × 106 K. Radio and optical data on the region appear consistent with this picture.

Type
II. Middle Aged and Older Supernova Remnants
Information
Symposium - International Astronomical Union , Volume 101: Supernova Remnants and Their X-Ray Emission , 1983 , pp. 245 - 252
Copyright
Copyright © Reidel 1983 

References

Canizares, C.R., and Winkler, P.F. 1981, Ap. J. (Letters), 246, L33.CrossRefGoogle Scholar
Petre, R., Canizares, C.R., Kriss, G.A., and Winkler, P.F. 1981, Ap. J., 258, 22.CrossRefGoogle Scholar
Pradhan, A.K. 1982, Ap. J., 263, 477.CrossRefGoogle Scholar
Raymond, J.C., and Smith, B.W. 1977, Ap. J. Suppl., 35, 419.CrossRefGoogle Scholar
Shull, J.M. 1981, Ap. J. Suppl., 46, 27.CrossRefGoogle Scholar
Shull, J.M. 1982, Ap. J., 262, 308.CrossRefGoogle Scholar
Winkler, P.F., Canizares, C.R., Clark, G.W., Markert, T.H., Kalata, K., and Schnopper, H.W. 1981a, Ap. J. (Letters), 246, L27.CrossRefGoogle Scholar
Winkler, P.F., Canizares, C.R., Clark, G.W., Markert, T.H., and Petre, R. 1981b, Ap. J., 245, 574.CrossRefGoogle Scholar
Winkler, P.F., Canizares, C.R., Markert, T.H., and Szymkowiak, A.E. 1982, in Supernovae: A Survey of Current Research, Proceedings of the NATO Advanced Study Institute held at Cambridge, UK, June 29-July 10, 1981, Rees, M.J. and Stoneham, R.J., eds. (Dordrecht: D. Reidel), 501.CrossRefGoogle Scholar