Abstract
The relative intensity of cosmic ray sources in external galaxies of different types is estimated from the relative frequency of supernovae there. Also the cosmic ray energy in normal galaxies is estimated from radio astronomical data. It is found that the intensity and the lifetime of cosmic rays in spiral galaxies are nearly constant during their evolutional stage as spirals.
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.