| Issue |
A&A
Volume 402, Number 1, April IV 2003
|
|
|---|---|---|
| Page(s) | 1 - 3 | |
| Section | Astrophysical processes | |
| DOI | https://doi.org/10.1051/0004-6361:20030229 | |
| Published online | 07 April 2003 | |
Transfer of radiation through cyclopropenylidene and ethylene oxide *
School of Physical Sciences, SRTM University, Nanded 431 606, India
Corresponding author: suresh492000@yahoo.co.in
Received:
29
June
1999
Accepted:
17
October
2002
Cyclopropenylidene and ethylene oxide molecules are of astronomical importance as their observed lines, distributed throughout the observable microwave region, have a number of pairs having nearly equal frequencies, but different excitation energies and/or belonging to two different species of the molecule. Hence, these molecules may play important role in detecting physical conditions in cosmic objects. Therefore, in order to calculate intensities of the lines, we have investigated transfer of radiation through a cosmic object containing the molecule at a kinetic temperature of 10 K. Our results show that some lines of the molecule may be found in absorption against the cosmic 2.7 K background.
Key words: ISM: molecules / molecular data / radiative transfer
© ESO, 2003
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