Loading...
Please wait, while we are loading the content...
Similar Documents
Optical spectroscopy of iras sources with infrared emission bands. 1: iras 21282+5050 and the diffuse interstellar bands
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Cohen, Martin Jones, B. F. |
| Copyright Year | 1987 |
| Description | Spectroscopy of the starlike optical counterpart to IRAS 21282+5050, a source with the hydrocarbon infrared emission band spectrum, shows an 07(f)-(WC11) planetary nebula nucleus suffering an extinction of 5.7 mag. Emission line widths in the WC spectrum are only approx. 100 km/s, indicating a very slow stellar wind. Optical diffuse interstellar bands (DIBs) are prominent. Five DIBs are strongly enhanced, namely lamda lamda 5797, 6196, 6203, 6283, and 6613. The presence of circumstellar hydrocarbon molecules may explain both the infrared emission bands and the enhanced DIBs. |
| File Size | 639378 |
| Page Count | 25 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19880001229 |
| Archival Resource Key | ark:/13960/t2b90535c |
| Language | English |
| Publisher Date | 1987-01-01 |
| Access Restriction | Open |
| Subject Keyword | Optics Stellar Winds Interstellar Radiation Infrared Sources Astronomy Hydrocarbons Diffuse Radiation Planetary Nebulae Optical Emission Spectroscopy Infrared Astronomy Satellite Emission Spectra Spectrum Analysis Wolf-rayet Stars Infrared Radiation Line Spectra 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 |
