J/ApJ/835/46 methoxy radical (CH3O) rotational spectrum (Laas+, 2017)
The millimeter/submillimeter spectrum of the methoxy radical at low
temperatures.
Laas J.C., Widicus Weaver S.L.
<Astrophys. J., 835, 46-46 (2017)>
=2017ApJ...835...46L 2017ApJ...835...46L (SIMBAD/NED BibCode)
ADC_Keywords: Atomic physics ; Spectra, millimetric/submm
Keywords: astrochemistry; line: identification; molecular data
Abstract:
The methoxy radical (CH3O) has recently been detected in the
interstellar medium and may be an important tracer of methanol-related
chemistry in cold sources. Despite its importance, the spectral
information needed to guide further astronomical searches is limited.
We have therefore studied the low-temperature rotational spectrum in
the laboratory within the spectral range of 246-303GHz. We have
combined these new measurements with results from a number of
literature reports to refine the molecular parameters and provide an
updated and improved spectral line catalog. We present here the
results of the laboratory studies and the refined analysis for the
millimeter and submillimeter spectrum of methoxy.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table3.dat 53 393 Assigned transitions for the ground state of methoxy
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See also:
J/A+A/587/A130 : HCO and CH3O in prestellar cores (Bacmann+, 2016)
Byte-by-byte Description of file: table3.dat
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Bytes Format Units Label Explanations
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1 I1 --- N-u [1/7] N value of the upper state
3- 4 I2 --- K-u [-6/6] K value of the upper state
6 I1 --- v-u [0/1] v value of the upper state
8- 9 I2 --- t-u [0/15] t value of the upper state
11 I1 --- F-u [1/8] F value of the upper state
13 I1 --- N-l [0/6] N value of the lower state
15- 16 I2 --- K-l [-6/6] K value of the lower state
18 I1 --- v-l [0/1] v value of the lower state
20- 21 I2 --- t-l [0/15] t value of the lower state
23 I1 --- F-l [0/7] F value of the lower state
25- 36 F12.5 MHz Freq [82341/371639] Measured frequency
38- 45 F8.5 MHz O-C [-0.9/1.1] Observed-calculated frequency
47- 53 F7.5 MHz e_Freq [0.03/0.3] Uncertainty of Freq
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History:
From electronic version of the journal
(End) Prepared by [AAS], Emmanuelle Perret [CDS] 02-Aug-2017