X-Ray Spectra from Three Cosmic Sources
- 10 June 1966
- journal article
- other
- Published by American Association for the Advancement of Science (AAAS) in Science
- Vol. 152 (3728), 1499-1504
- https://doi.org/10.1126/science.152.3728.1499
Abstract
Three cosmic x-ray sources have been observed from a water-launched rocket carrying two x-ray detectors to an altitude of 200 kilometers. The x-ray spectra, measured in the photon energy range between I and 40 kiloelectron volts, are all different. The sources in order of hardness of spectra are Cyg XR-1, Tau XR-1, and Sco XR-1. The intensity of Sco XR-J decreased at low photon energies. The differences in spectra might source mechanisms.Keywords
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