Fig11_15 crab xrayopt

Fig11_15 crab xrayopt

Fig. 11.15 . A neutron star, or radio pulsar, at the center of the Crab Nebula is spinning at 30 times a second, accelerating particles up to the speed of light, and flinging high-speed electrons out into the Crab Nebula. This image combines optically visible light (red) from the Hubble Space Telescope and an x-ray image (blue) taken from the Chandra X-ray Observatory. It shows tilted rings and waves of high-energy particles that appear to have been flung outward from the central pulsar, as well as high-energy jets of particles in a direction perpendicular to the rings. The ring-like structures are x-ray regions where high-energy particles slam into the nebular material. The innermost ring is about one light-year across. (Courtesy of NASA/HST/CXC/SAO/J. Hester, ASU.)

Copyright 2010, Professor Kenneth R. Lang, Tufts University