Abstract
THE interesting suggestion has recently been made by Landovitz and Marshall1 that a gravitational red shift might be detectable in observations of the 21-cm. hydrogen line from the inner regions of the Galaxy. The effect is proportional to the difference in gravitational potential between the point of emission and the Earth's surface, and so could give independent information on the mass of the Galaxy. Currently accepted values for the mass and scale of the Galaxy would lead to a frequency shift of −3 kc./s. for radiation originating near the galactic centre ; this corresponds to a Doppler velocity of +0.7 km./sec.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: 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.
