Advertisement

Astrophysics and Space Science

, Volume 32, Issue 1, pp L1–L5 | Cite as

Rocket observation of energy spectrum of diffuse hard X-rays

  • Y. Fukada
  • S. Hayakawa
  • M. Ikeda
  • I. Kasahara
  • F. Makino
  • Y. Tanaka
Letters to the Editor

Abstract

The energy spectrum of diffuse hard X-rays measured in the range 10–40 keV shows a rather sharp change of slope. The logarithmic derivative of the spectrum changes around 20–30 keV by the increment significantly greater than 0.5 within an interval smaller than 50 keV.

Keywords

Energy Spectrum Sharp Change Logarithmic Derivative Spectrum Change Rocket Observation 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

References

  1. Bleeker, J. A. M., Scheepmaker, A., Burger, J. H., Swanenburg, B. N., Tanaka, Y., Hayakawa, S., Makino, F., and Ogawa, H.: 1968,Can J. Phys. 46, s461.Google Scholar
  2. Cowsik, R. and Kobetich, E. J.: 1972,Astrophys. J. 177, 585.Google Scholar
  3. Dennis, B. R., Suri, A. N., and Forest, J. K.: 1973,Astrophys. J. 186, 97.Google Scholar
  4. Schwartz, D. A. and Gursky, H.: 1973,A Symposium in Gamma Ray Astrophysics at GSFC, p. 15.Google Scholar
  5. Schwartz, D. A., Hudson, H. S., and Peterson, L. E.: 1970,Astrophys. J. 162, 431.Google Scholar
  6. Schwartz, D. A. and Peterson, L. E.: 1974,Astrophys. J. 190, 297.Google Scholar
  7. Tanaka, Y.: 1974,ESLAB Symposium on The Context and Status of Gamma-Ray Astronomy, Frascati (Italy).Google Scholar

Copyright information

© D. Reidel Publishing Company 1975

Authors and Affiliations

  • Y. Fukada
    • 1
  • S. Hayakawa
    • 1
  • M. Ikeda
    • 1
  • I. Kasahara
    • 1
  • F. Makino
    • 1
  • Y. Tanaka
    • 1
  1. 1.Dept. of PhysicsNagoya UniversityNagoyaJapan

Personalised recommendations