Interstellar CN Excitation at 2.64 mm
- 20 March 1972
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 28 (12) , 772-775
- https://doi.org/10.1103/physrevlett.28.772
Abstract
A sensitive search was made for 2.64-mm line emission from a cloud of CN, whose excitation is known from optical measurements, with essentially a null result. This provides strong support for the proposition that the excitation temperature deduced from the optical CN lines is equal to the temperature of the microwave background.Keywords
This publication has 9 references indexed in Scilit:
- Measurement of the Far-Infrared Background Radiation in the Night SkyPhysical Review Letters, 1971
- Interstellar Carbon MonosulfideThe Astrophysical Journal, 1971
- Formaldehyde Absorption in Dark NebulaeThe Astrophysical Journal, 1969
- Primeval fireball intensity atmmPhysical Review Letters, 1968
- The Radiation Temperature of Space at λ 2.6 MM and the Excitation of Interstellar CNThe Astrophysical Journal, 1966
- Cosmic Microwave Radiation at 2.63 mm from Observations of Interstellar CNPhysical Review Letters, 1966
- Cosmic Black-Body Radiation atmmPhysical Review Letters, 1966
- A Measurement of Excess Antenna Temperature at 4080 Mc/s.The Astrophysical Journal, 1965
- An Interstellar Cloud with a High Concentration of CN Molecules.The Astrophysical Journal, 1964