Hostname: page-component-cd9895bd7-dzt6s Total loading time: 0 Render date: 2024-12-26T04:31:48.288Z Has data issue: false hasContentIssue false

A New Aspect of Galactic Ridge X-ray Emission: — SNRS in a Tenuous Medium? —

Published online by Cambridge University Press:  04 August 2017

Katsuji Koyama*
Affiliation:
Institute of Space and Astronautical Science, 6-1, Koraaba 4-chome, Meguro-ku, Tokyo, 153, Japan

Abstract

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.

Thin thermal natures of a plasma temperature of several keV are observed in the diffuse X-ray spectra from the galactic ridge region by the Tenma satellite. Within the constraints imposed by the observational results, possible origins of the ridge X-ray emission are discussed. We show that unidentified young supernova remnants in a tenuous medium could be a significant contributor to the ridge emission.

Type
VI. Other Manifestations of Neutron Stars and Their Place in Neutron Star Evolution
Copyright
Copyright © Reidel 1987 

References

Agrawal, P.C., Koyama, K., Matsuoka, M., and Tanaka, Y. 1986, Publ. Astron. Soc. Japan, 38, in press.Google Scholar
Clark, D.H., and Caswell, J.L. 1976, Monthly Notices Roy. Astron. Soc., 174, 267.Google Scholar
Forman, W., Jones, C., Cominsky, L., Julien, P., Murray, S., Peters, G., Tananbaum, H., and Giacconi, R. 1978, Astrophys. J. Suppl., 38, 357.CrossRefGoogle Scholar
Iwan, D., Marshall, F.E., Boldt, E.A., Mushotzky, R.F., Shaher, R.A., and Stottlemyer, A. 1982, Astrophys. J., 260, 111.CrossRefGoogle Scholar
Koyama, K. 1984, in X-Ray Astronomy 1094, ed. Oda, M. and Giacconi, R. (Institute of Space and Astronautical Sience, Tokyo), p.325.Google Scholar
Koyama, K., Makishima, K., Tanaka, Y., and Tsunemi, H. 1986a, Publ. Astron. Soc. Japan, 38, 121.Google Scholar
Koyama, K., Ikeuchi, S., and Tomisaka, K. 1986b, Publ. Astron. Soc. Japan, 38, in press.Google Scholar
Koyama, K. 1986c, submitted to Publ. Astron. Soc. Japan.Google Scholar
Milne, D.K. 1979, Australian J., 235, 4.Google Scholar
Sedov, L.I. 1959, Similarity and Dimensional Methods in Mechanics (Academic Press, New York), p 210.Google Scholar
Tomisaka, K, Habe, A. and Ikeuchi, S. 1980, Prog. Theor. Phys., 64, 1587.Google Scholar
Warwick, R.S., Turner, M.J.L., Watson, M.G., and Willingale, R. 1985, Nature, 317, 218.Google Scholar
Wood, K.S., Meekins, J.F., Yentis, D.J., Smathers, H.W., McNutt, D.P., Bleach, R.D., Byram, E.T., Chubb, T.A., Friedman, H., and Meidav, M. 1984, Astrophys. J. Suppl., 56, 507.CrossRefGoogle Scholar
Worrall, D.M., Marshall, F.E., Boldt, E.A., and Swank, J.H. 1982, Astrophys. J., 255, 111.Google Scholar