An interferometric and multitransitional study of the Orion methanol masers.
Abstract
The paper considers the methanol source in OMC-1 interferometrically mapped in two masing transitions with wavelengths near 1 cm. The source consisted of 10 components with different Doppler velocities; most of the components radiate in both of the mapped transitions, and have brightness temperatures or limits of 1000-4000 K. The molecular excitation was studied with a series of single-dish measurements, and a new methanol transition was detected. It is concluded that the methanol masers are being excited by infrared emission from other objects in the vicinity.
- Publication:
-
The Astrophysical Journal
- Pub Date:
- March 1980
- DOI:
- 10.1086/157765
- Bibcode:
- 1980ApJ...236..481M
- Keywords:
-
- Emission Spectra;
- Interferometry;
- Interstellar Masers;
- Line Spectra;
- Methyl Alcohol;
- Orion Nebula;
- Brightness Temperature;
- Interstellar Chemistry;
- Molecular Excitation;
- Astrophysics