The second orbiting High Energy Astronomy Observatory started its normal operations on 7 January. It has already produced more than a thousand x‐ray images, many of them spectacular pictures of supernova remnants, quasars, galaxies, clusters of galaxies, stars and clusters of stars. It has also produced a number of puzzles, most notably for theories of pulsar formation.

Topics
Galaxy clusters, Active galactic nucleus, Pulsars, Supernovae, Astronomers
This content is only available via PDF.
© 1979 American Institute of Physics.
1979
American Institute of Physics
You do not currently have access to this content.