Hostname: page-component-848d4c4894-xfwgj Total loading time: 0 Render date: 2024-07-05T21:34:47.489Z Has data issue: false hasContentIssue false
  • English
  • Français

Cosmic Ray Acceleration and γ Ray Induced by the Interaction of the Ejecta of SN1987A with the Magnetized Cloud

Published online by Cambridge University Press:  19 July 2016

Hitoshi Hanami
Hitoshi Hanami*
Affiliation:
Department of Physics, University of Texas at Austin, Austin, TX78712-1060, U.S.A.

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.

We have studied the high energy physical process related to the cosmic ray acceleration for SN1987A. The X-ray flare observed by Ginga satellite (Makino 1988) and TeV γ-rays reported by the JANZOS collaboration (Bond et al. 1988) occurred in January, 1988. These events may be explained by the interaction of the supernova ejecta with the surrounding cloud, which induces the thermalization of shocked material and the acceleration of cosmic ray on the reverse shock at the front of cloud. Especially, the soft X-ray emission from SN1987A is well described by the interaction model of the ejecta with the circumstellar medium (Masai et al. 1988, and Yoshida and Hanami 1988). It seems to be natural to consider that the origin of the γ-ray is connected with that of the X-ray flare, since they had occurred at same time. Then, we consider about the relation of this acceleration mechanism and the evolution scenario of the progenitor.

Type
6. Magnetic Fields in Molecular Clouds, Dark Globules and in the Pre-Stellar and Circumstellar Environment
Information
Symposium - International Astronomical Union , Volume 140: Galactic and Intergalactic Magnetic Fields , 1990 , pp. 359 - 360
Copyright
Copyright © Kluwer 1990 

References

Bond, I. et al., 1988, Phys. Rev. Lett. 20, 2292.Google Scholar
Hanami, H. and Yoshida, T., 1988, Highlight of Astronomy, in press.Google Scholar
Honda, M., Sato, H., and Terasawa, T., 1987, preprint.Google Scholar
Makino, F., 1988, IAU Circ. No. 4530/4532.Google Scholar
Masai, K., Hayakawa, S., Inoue, H., Itoh, H., and Nomoto, K., 1988, Nature,335, 804.Google Scholar
Spitzer, L. Jr. 1978, Physical Processes in the Interstellar Medium (John Wiley & Sons, Inc.).Google Scholar
Yoshida, T. and Hanami, H., 1988, Prog. Theor. Phys., 80, 83.Google Scholar