X-Ray Spectra of Discrete Sources in Cygnus
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).
- Publication:
-
The Astrophysical Journal
- Pub Date:
- January 1972
- DOI:
- 10.1086/151256
- Bibcode:
- 1972ApJ...171...51B