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Observation of the 63 micron (0 1) emission line in the orion and omega nebulae
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Gull, G. E. Melnick, G. Harwit, M. |
| Copyright Year | 1978 |
| Description | The 63 micron fine structure transition P4 : 3Pl yields 3P2 for neutral atomic oxygen was obtained during a series of flights at an altitude of approximately 13.7 km. In the Orion Nebula (M42), the observed line strength was 8 x 10 to the minus 15 power watt cm/2 which is estimated to be approximately 0.3 o/o of the energy radiated at all wavelengths. For the Omega Nebulae (M17), the line strength was 2.4 x 10 to the minus 15 power watt cm/2, and the fraction of the total radiated power was slightly higher. These figures refer to a 4' x 6' field of view centered on the peak for infrared emission from each source. The uncertainty in the line strength is approximately 50% and is caused by variable water vapor absorption along the flight path of the airplane. The line position estimate is 63.2 micron (+0.1, -0.2) micron. The prime uncertainty is due to the uncertain position of the (0 I) emitting regions in the field of view. |
| File Size | 1514524 |
| Page Count | 25 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19790005789 |
| Archival Resource Key | ark:/13960/t3130pc62 |
| Language | English |
| Publisher Date | 1978-07-01 |
| Access Restriction | Open |
| Subject Keyword | Astronomy Neutral Gases Oxygen Atoms Orion Constellation Infrared Astronomy Line Spectra Nebulae Interstellar Matter Atomic Energy Levels Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Technical Report |
