2005A&A...441.1039F

Query : 2005A&A...441.1039F

2005A&A...441.1039F - Astronomy and Astrophysics, volume 441, 1039-1041 (2005/10-3)

Laboratory measurement of the J, K=1,0^–-0,0⁺ transition of ortho-D₃O⁺.

FURUYA T. and SAITO S.

Abstract (from CDS):

The J,K=1,0^–-0,0⁺ transition of ortho-D₃O⁺ was measured by laboratory submillimetre-wave spectroscopy using a source-modulated spectrometer combined with a hollow-cathode free-space cell. The D₃O⁺ ion was generated by a dc glow discharge of D₂O. A single line, which showed characteristic behaviour of a molecular ion, was observed at exactly the frequency predicted by the molecular constants previously determined by Araki et al. (1999, Mol. Phys., 97, 177). The measured line frequency was corrected for the ion-drift Doppler shift and determined to be 798713.814±0.077MHz with one standard error of the measurements in parentheses. The lowest J,K transition of ortho-D₃O⁺ can be used as a probe to investigate the ortho to para ratio or the ortho and para to meta ratio of interstellar D₃O⁺ in highly depleted molecular cores.

Abstract Copyright: ∼

Journal keyword(s): molecular data - line: identification - ISM: molecules

Simbad objects: 11

Full paper

View the references in ADS

Number of rows : 11

N	Identifier	Otype	ICRS (J2000) RA	ICRS (J2000) DEC	Sp type	#ref 1850 - 2023	#notes
1	NAME W3 IRS 5	Y*O	02 25 40.54	+62 05 51.4	B1	344	0
2	NGC 1333	OpC	03 29 11.3	+31 18 36	~	1393	1
3	Barnard 1	MoC	03 33 16.3	+31 07 51	~	313	0
4	TMC-1	MoC	04 41 45.9	+25 41 27	~	1594	0
5	LDN 1544	DNe	05 04 16.6	+25 10 48	~	820	0
6	NAME [BM89] L1544	cor	05 04 22.5	+25 11 36	~	436	1
7	NAME OMC-1	MoC	05 35 14	-05 22.4	~	1138	2
8	NAME Orion-KL	SFR	05 35 14.16	-05 22 21.5	~	2228	1
9	LDN 183	MoC	15 54 12.2	-02 49 42	~	732	1
10	IRAS 16293-2422	cor	16 32 22.56	-24 28 31.8	~	1205	1
11	NAME Sgr B2	MoC	17 47 20.4	-28 23 07	~	2168	1

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