Observations of interstellar water vapor.
Abstract
A search has been made for interstellar H2O emission in 53 galactic sources and for NH8 in 16 galactic sources using the NRAO 140 foot telescope at 1.35 cm wavelength. Two new H2O emission sources have been found, one associated with an IR star and the other with the Cygnus-1 OH emission source. Observations at high frequency resolution have been made of three known H2O emission sources. Analysis of these spectra shows that the known hyperfine components are in no case present with LTE intensity distribution. Key words: interstellar H8O - microwave emission
- Publication:
-
Astronomy and Astrophysics
- Pub Date:
- February 1970
- Bibcode:
- 1970A&A.....4..165T