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J/A+A/455/1161    Rest frequencies of sub-mm spectrum of SiN  (Bizzocchi+, 2006)

Improved rest frequencies for the submillimetre-wave spectrum of SiN. Bizzocchi L., Degli Esposti C., Dore L. <Astron. Astrophys., 455, 1161-1164 (2006)> =2006A&A...455.1161B
ADC_Keywords: Interstellar medium ; Spectroscopy ; Atomic physics Keywords: molecular data - methods: laboratory - techniques: spectroscopic - radio lines: ISM Abstract: The submillimetre-wave spectrum of the SiN radical has been investigated in the laboratory using a source-modulation microwave spectrometer equipped with a negative glow discharge cell. SiN was produced in a SiCl4/N2 discharge plasma. Twenty-one new fine and hyperfine components up to N=17-16 were observed reaching a frequency as high as 740GHz. The new laboratory measurements provide much improved rest frequencies in the submillimetre spectral region useful for the identification of SiN lines in hot core sources and circumstellar shells. Description: The rotational spectrum of SiN was recorded in the frequency range 218-741 GHz employing a source modulation millimetre-wave spectrometer equipped with a negative glow discharge cell. File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file table3.dat 50 113 Predicted rest-frequencies (MHz) and line strengths for SiN
Byte-by-byte Description of file: table3.dat
Bytes Format Units Label Explanations
1- 2 I2 --- N' N' quantum number of rotational transition (N'-N) 3 A1 --- --- [-] 4- 5 I2 --- N N quantum number of rotational transition (N'-N) 7- 10 F4.1 --- J' J' quantum number of spin-rotation coupling transition (J'-J) 11 A1 --- --- [-] 12- 15 F4.1 --- J J quantum number of spin-rotation coupling transition (J'-J) 17- 20 F4.1 --- F' F' quantum number of hyperfine transition (F'-F) 21 A1 --- --- [-] 22- 25 F4.1 --- F F quantum number of hyperfine transition (F'-F) 27- 37 F11.3 MHz RFreq Rest frequency 39- 43 F5.3 MHz e_RFreq rms uncertainty on RFreq 45- 50 F6.3 --- S Line strength
Acknowledgements: Luca Bizzocchi, luca.bizzocchi(at)unibo.it
(End) Patricia Vannier [CDS] 11-Sep-2006
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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