Hostname: page-component-cd9895bd7-fscjk Total loading time: 0 Render date: 2024-12-26T03:49:00.442Z Has data issue: false hasContentIssue false
  • English
  • Français

The Peculiar X-ray Morphology of the SNR G292.0+1.8 : Evidence for an Asymmetric Supernova Explosion

Published online by Cambridge University Press:  04 August 2017

D. H. Clark  and
I. R. Tuohy
D. H. Clark
Affiliation:
Rutherford Appleton Laboratory Guest Investigator, Einstein Observatory.
I. R. Tuohy
Affiliation:
Mount Stromlo and Siding Spring Observatories Guest Investigator, Einstein Observatory.

Extract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

A high resolution X-ray image from the Einstein Observatory of the young supernova remnant G292.0+1.8 (MSH11–54), previously noted as peculiar in terms of its spectral and morphological properties at optical and radio wavelengths, also shows an unusual X-ray morphology. Instead of a limb-brightened X-ray shell characteristic of most SNRs, the remnant consists of a central bar-like feature superposed on an ellipsoidal disc of approximately uniform surface brightness. We attribute the bar emission to a ring of oxygen-rich material ejected in the equatorial plane of a massive rotating progenitor, and the uniform disc component to emission from material with roughly cosmic composition heated by the accompanying blast wave. This interpretation provides observational support for the rotating precursor model of a Type II supernova discussed by Bodenheimer and Woosley.

Type
I. Young Supernova Remnants
Information
Symposium - International Astronomical Union , Volume 101: Supernova Remnants and Their X-Ray Emission , 1983 , pp. 153 - 158
Copyright
Copyright © Reidel 1983 

References

Bodenheimer, P.B., and Woosley, S.E.: 1980, Bull. Am. Astron. Soc., 12, 833.Google Scholar
Bodenheimer, P.B., and Woosley, S.E.: 1982, Astrophys. J. in preparation.Google Scholar
Caswell, J.L., Murray, J.D., Roger, R.S., Cole, D.J., and Cooke, D.J.: 1975, Astron. Astrophys. 45, 239.Google Scholar
Clark, D.H., Tuohy, I.R., and Becker, R.H.: 1980, Monthly Notices Roy. Astron. Soc. 193, 129.Google Scholar
Giacconi, R. et al. : 1979, Astrophys. J. 230, 540.CrossRefGoogle Scholar
Goss, W.M., Shaver, P.A., Zealey, W.J., Murdin, P., and Clark, D.H.: 1979, Monthly Notices Roy. Astron. Soc. 188, 357.Google Scholar
Lasker, B.M.: 1980, Astrophys. J. 237, 765.Google Scholar
Lockhart, I.A., Goss, W.M., Caswell, J.L., and McAdam, W.B.: 1977, Monthly Notices Roy. Astron. Soc. 179, 147.CrossRefGoogle Scholar
Markert, T.H., Canizares, C.R., and Winkler, P.F.: 1981, Talk presented at Colgate University, April 1981.Google Scholar
Murdin, P., and Clark, D.H.: 1979, Monthly Notices Roy. Astron. Soc. 189, 501.Google Scholar
Tuohy, I.R., Clark, D.H., and Burton, W.M.: 1982, Astrophys. J. (Letters) 260, L65.Google Scholar
Tuohy, I.R., and Doptia, M.A.: 1982, Astrophys. J. (Letters), in press.Google Scholar
Tuohy, I.R., and Dopita, M.A.: 1983, this volume, p. 165.Google Scholar
van den Bergh, S.: 1979, Astrophys. J., 234, 493.CrossRefGoogle Scholar
Weiler, K.W.: 1978, Mem. Soc. Astr. Italiana, 49, 545.Google Scholar
Woosley, S.E., and Weaver, T.A.: 1981, Ann. N.Y. Acad. Sci. 375, 357.Google Scholar
Woosley, S.E., and Weaver, T.A.: 1982, Proc. NATO Conference on Supernovae, Cambridge, England, June-July 1981, p. 79.Google Scholar