Abstract
ABSTRACT Twelve symbiotic stars and related objects were observed at the 1612 MHz OH line with negative results. The infrared pumping rate is calculated and upper limits are given for the 1612 MHz line. A probable value for the least amount of infrared photons per second necessary for an OH maser is also suggested.
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 callMore From: Publications of the Astronomical Society of the Pacific
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.
