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J/A+A/376/333       Einstein A-coefficients for C3H4     (Sharma+, 2001)

Suggestions for an interstellar cyclopropene search. Sharma A.K., Chandra S. <Astron. Astrophys. 376, 333 (2001)> =2001A&A...376..333S
ADC_Keywords: Atomic physics Keywords: ISM: molecules - molecular data Abstract: Following tentative detection of cyclopropene (C3H4) in Sgr B2 through its transition 322-221, several attempts to confirm the presence of cyclopropene in astronomical objects (including Sgr B2 itself) have been made. We suggest that cyclopropene may be observed in astronomical objects through its transition 220-221 at 3.67218GHz, in absorption, even against the cosmic 2.7K background, in a region having low density and low kinetic temperature. File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file table1a.dat 41 201 Ortho-C3H4 Einstein A-coefficient, transition, and frequency of the transition table1b.dat 41 217 Para-C3H4 Einstein A-coefficient, transition, and frequency of the transition
See also: J/A+AS/114/175 : Einstein A-coefficients in CS transitions (Chandra+ 1995) J/A+AS/117/557 : Einstein coefficients for CO transitions (Chandra+ 1996) J/A+AS/131/137 : Einstein A-Coefficients in SiC2 transitions (Chandra+ 1998) J/A+AS/142/113 : C3H2 and SiC2 collisional rates (Chandra+, 2000) J/A+A/376/356 : Diatomic molecules collisional rates (Chandra+, 2001) Byte-by-byte Description of file: table1[ab].dat
Bytes Format Units Label Explanations
1- 8 E8.2 s-1 A Einstein A-coefficient 11- 31 A21 --- Trans Transition 34- 41 F8.3 GHz Freq Frequency of transition
Acknowledgements: S. Chandra <>
(End) Patricia Bauer [CDS] 27-Aug-2001
The document above follows the rules of the Standard Description for Astronomical Catalogues.From this documentation it is possible to generate f77 program to load files into arrays or line by line

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