Abstract
The radio frequency receivers of the WAVES instrument on the WIND spacecraft are used to determine the direction of maximum intensity of the Galactic noise background in the frequency range 0.2 to 13.8 MHz. The observations are made with dipole antennas spinning in the ecliptic plane, hence provide information on the large scale distribution of intensity. The main results are: (1) the direction of maximum brightness at the higher frequencies is close to that of the Galactic center, (2) in an intermediate range around 3{4 MHz the brightness appears isotropic, and (3) at frequencies of 3 MHz and lower the maximum brightness is at the ecliptic longitude nearest the Galactic poles. On the basis of previous observations these results are not unexpected, but this is the rst time that a precise spectrum has been made over this large frequency range.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.