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Evidence for a galactic component of the diffuse X-ray background

Published online by Cambridge University Press:  14 August 2015

B. A. Cooke ,
R. E. Griffiths  and
K. A. Pounds
B. A. Cooke
Affiliation:
X-ray Astronomy Group, Dept. of Physics, University of Leicester
R. E. Griffiths
Affiliation:
X-ray Astronomy Group, Dept. of Physics, University of Leicester
K. A. Pounds
Affiliation:
X-ray Astronomy Group, Dept. of Physics, University of Leicester

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It is widely believed that the diffuse X-ray background, observed on several occasions over the energy range from 0.25 keV to above 1 MeV has an extragalactic origin. Evidence for this comes from the generally reported isotropy above several keV [1, 2, 3] and the observed galactic latitude dependence at 0.25 keV, believed to result from the interstellar attenuation of these low energy photons in passage through the Galaxy [4, 5].

Type
Research Article
Information
Symposium - International Astronomical Union , Volume 37: Non-Solar X- and Gamma-Ray Astronomy , 1970 , pp. 280 - 288
Copyright
Copyright © Reidel 1970 

References

[1] Gould, R. J.: 1967, Am. J. Phys 35, 376.CrossRefGoogle Scholar
[2] Gorenstein, P., Kellogg, E. M., and Gursky, H.: 1969, Astrophys. J. 156, 315.Google Scholar
[3] Cooke, B. A., Pounds, K. A., Stewardson, E. A., and Adams, D. J.: 1967, Astrophys. J. 150, L189.Google Scholar
[4] Bowyer, C. A., Field, G. B., and Mack, J. E.: 1968, Nature 217, 32.Google Scholar
[5] Kraushaar, W. L.: 1970, this volume.Google Scholar
[6] Gursky, H. Kellogg, E. M., and Gorenstein, P.: 1969, Astrophys. J. 154, L71.Google Scholar
[7] Chodil, G., Mark, H., Rodrigues, R., Seward, F., Swift, C. D., Hiltner, W. A., Wallerstein, G., and Mannery, E. J.: 1967, Phys. Rev. Letters 19, 681.Google Scholar
[8] Chodil, G., Mark, H., Rodrigues, R., and Swift, C. D.: 1968, Astrophys. J. 152, L45.Google Scholar
[9] Rao, U. R., Chitnis, E. V., Prakasarao, A. S., and Jayanthi, U. B.: 1970, this volume p. 88.CrossRefGoogle Scholar
[10] Lewin, W. H. G., Clark, G. W., and Smith, W. B.: 1968, Astrophys. J. 152, L49.Google Scholar
[11] Lewin, W. H. G.: 1970, this volume p. 144.CrossRefGoogle Scholar
[12] Friedman, H., Byram, E. T., and Chubb, T. A.: 1967, Science 150, 374.Google Scholar
[13] Gursky, H., Gorenstein, P., and Giacconi, R.: 1967, Astrophys. J. 150, L75.Google Scholar
[14] Bradt, H., Naranan, S., Rappaport, S., and Spada, G.: 1968, Astrophys. J. 152, 1005.Google Scholar
[15] Giacconi, R., Gursky, H., and Van Speybroeck, L. P.: 1968, Ann. Rev. Astron. Astrophys. 6, 373.Google Scholar
[16] ‘Review of Galactic Structure’, in Landolt-Börnstein - Group VI 1, 623. (ed. by Voigt, H.), Springer-Verlag, Berlin, 1965.Google Scholar
[17] Kerr, F. J.: 1967, Radio Astronomy and the Galactic System (ed. by van Woerden, H.), Academic Press, p. 239.Google Scholar
[18] Schmidt-Kaler, Th.: Radio Astronomy and the Galactic System (ed. by van Woerden, H.), Academic Press, p. 171.Google Scholar
[19] Seward, F., Chodil, G., Mark, H., Swift, C., and Toor, A.: 1967, Astrophys. J. 150, 845.CrossRefGoogle Scholar
[20] Boldt, E. and Serlemitsos, P.: 1968, NASA/GSFC report X-611-68-385.Google Scholar
[21] Pikel'ner, S. B.: 1968, Soviet Astron. 11, 737.Google Scholar
[22] Stecker, F. W.: 1969, Nature 222, 865.CrossRefGoogle Scholar
[23] Silk, J. and Steigman, G.: 1970, this volume p. 385.Google Scholar
[24] Comstock, C. M., Fan, C. Y., and Simpson, J. A.: 1969, Astrophys. J. 155, 609.CrossRefGoogle Scholar
[25] Rees, M. J. and Setti, G.: 1968, Nature 219, 127.Google Scholar
[26] Brecker, K. and Morrison, P.: 1967, Astrophys. J. 150, L61.Google Scholar
[27] Webber, W. R.: 1968, Australian J. Phys. 21, 845.Google Scholar
[28] Shivanandan, K., Hauck, J. R., and Harwit, M. O.: 1968, Phys. Rev. Letters 21, 1460.CrossRefGoogle Scholar
[29] Bortolot, N. J., Clauser, J. F., and Thaddeus, P.: 1969, Phys. Rev. Letters 22, 307.Google Scholar
[30] Rees, M. J. and Silk, J.: 1969, Astron. Astrophys 3, 452.Google Scholar
[31] Clark, G. W., Garmire, G. P., and Kraushaar, W. L.: 1968, Astrophys. J. 153, L203.Google Scholar
[32] Hutchinson, G. W., Ramsden, D., and Wills, R. D.: 1970, this volume p. 300.Google Scholar
[33] Sood, R. K.: 1969, Nature 222, 650.Google Scholar
[34] Valdez, J. V. and Waddington, C. J.: 1969, Astrophys. J. 156, L85.Google Scholar
[35] Baylis, W. E., Schmid, W. N., and Lüscher, E.: 1967, Z. Astrophys. 66 271.Google Scholar
[36] Bowyer, C. S., Field, G. B., and Mack, J. E.: 1968, Nature 217, 32.Google Scholar
[37] Vette, J., Matteson, J. L., Gruber, D., and Peterson, L. E.: 1970, this volume p. 335.Google Scholar