Jupiter, as observed at short radio wavelengths

J.A. Roberts
1965 Journal of Research of the National Bureau of Standards Section D Radio Science  
The history of our knowledge of the microwave emission from Jupiter is reviewed brie fly , hi gh· lighting only what appear to the reviewer to be the significant advances. The Van Allen belt emisSion has a constant flux density, and polarization from 200 Mc/s to 3000 Mc/s, but probably d ecrea ses at frequencies above 3000 Mc/s. The radiation from the di s k co rre s ponds to near inf~ared temperatures at wavelengths of a few centimeters, but may increase at longe r wave le ngths, reachll1g tWi
more » ... ce this valu e at 10 cm. Th e ro c king of the plane of polarization and the beaming of the radiation are di sc ussed. The present sta te of knowle dge is reac hed with the presentation of a pre limina~y map by Berge showlI1g th e distribution of brightness over th e radio so urce, and a co mparI so n of thi s map With preliminary mode l calc ulation s by Ortwein, C ha ng, a nd Davi s. This co mpari so n s hows that th ere are two Van Allen belts having very different e lec tron pitch a ngle distributions.
doi:10.6028/jres.069d.165 fatcat:pvv7ao5jubb2bjj7s67c6cbu5q