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1972•The Astrophysical JournalOpen access

X-Ray Spectra of Discrete Sources in Cygnus

R. D. Bleach, E. A. Boldt, S. S. Holt, D. A. Schwartz, P. J. Serlemitsos

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Abstract

X-ray spectral data from a rocket-borne proportional counter exposure to discrete sources in Cygnus are presented. The data from Cyg x-1, Cyg X-2, and Cyg X-S have sufficient statistical significance to clearly indicate mutually exclusive spectral forms for the three. Upper limits are presented for X-ray intensities above 2 keV for Cyg X-4 and Cyg X-5 (Cygnus Loop).

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X-ray spectral data from a rocket-borne proportional counter exposure to discrete sources in Cygnus are presented. The data from Cyg x-1, Cyg X-2, and Cyg X-S have sufficient statistical significance to clearly indicate mutually exclusive spectral forms for the three. Upper limits are presented for X-ray intensities above 2 keV for Cyg X-4 and Cyg X-5 (Cygnus Loop).

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Available abstract

X-ray spectral data from a rocket-borne proportional counter exposure to discrete sources in Cygnus are presented. The data from Cyg x-1, Cyg X-2, and Cyg X-S have sufficient statistical significance to clearly indicate mutually exclusive spectral forms for the three. Upper limits are presented for X-ray intensities above 2 keV for Cyg X-4 and Cyg X-5 (Cygnus Loop).

Key concepts: Physics, Astrophysics, Spectral line, ROSAT, X-ray, Astronomy, Galaxy, Optics

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