Ethylene in IRC +10216.
Abstract
Ethylene has been detected in the circumstellar gas surrounding the supergiant star IRC +10216. Two lines of the nu7 vibration-rotation band near 28 THz (949/cm) have been seen in absorption at an expansion velocity of 14 km/sec relative to the central star. The line intensities indicate a rotational temperature of T greater than 400 K and a radial C2H4 column density of 10 to the 16th to 10 to the 17th per sq cm.
- Publication:
-
The Astrophysical Journal
- Pub Date:
- March 1981
- DOI:
- 10.1086/183490
- Bibcode:
- 1981ApJ...244L.103B
- Keywords:
-
- Ethylene;
- Interstellar Gas;
- Stellar Envelopes;
- Stellar Spectra;
- Supergiant Stars;
- Abundance;
- Laser Spectroscopy;
- Molecular Rotation;
- Vibrational Spectra;
- Astrophysics