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Results from ASCA Sky Surveys

Published online by Cambridge University Press:  25 May 2016

Y. Ogasaka
Affiliation:
NASA Goddard Space Flight Center
Y. Ueda
Affiliation:
The Institute of Space and Astronautical Science
Y. Ishisaki
Affiliation:
Department of Physics, Tokyo Metropolitan University
T. Kii
Affiliation:
The Institute of Space and Astronautical Science
T. Takahashi
Affiliation:
The Institute of Space and Astronautical Science
K. Makishima
Affiliation:
Department of Physics, University of Tokyo
H. Inoue
Affiliation:
The Institute of Space and Astronautical Science
K. Ohta
Affiliation:
Department of Astronomy, Kyoto University
T. Yamada
Affiliation:
Institute of Physical and Chemical Research (RIKEN)
T. Miyaji
Affiliation:
Max-Planck-Institute für Extraterrestrische Physik
G. Hasinger
Affiliation:
Astrophysikalisches Institut Potsdam

Extract

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The origin of the Cosmic X-ray Background (CXB) radiation has been investigated extensively by soft X-ray deep survey imaging observations with Einstein and ROSAT. In contrast, the lack of telescopes capable of detecting hard X-rays has prevented us from extensive study of the nature of the CXB in the energy range above 2 keV before ASCA.

Type
Part 5. Extra-Galactic Astronomy
Copyright
Copyright © Kluwer 1998 

References

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