2001A&A...372.1064L

Query : 2001A&A...372.1064L

2001A&A...372.1064L - Astronomy and Astrophysics, volume 372, 1064-1070 (2001/6-4)

The Si(³P_J) + O₂ reaction: A fast source of SiO at very low temperature: CRESU measurements and interstellar consequences.

LE PICARD S.D., CANOSA A., PINEAU DES FORETS G., REBRION-ROWE C. and ROWE B.R.

Abstract (from CDS):

The rate coefficient of the reaction Si(³P_J) + O₂ -> SiO + O has been measured at temperatures down to 15 K using a CRESU (Cinetique de Reaction en Ecoulement Supersonique Uniforme) apparatus coupled with the PLP-LIF (Pulsed Laser Photolysis - Laser Induced Fluorescence) technique. The temperature dependence of the rate coefficient is well fitted using the expression: 1.72x10^–10 (T/300 K)^–0.53((-17)K/T)cm³/molecule/s in the temperature range 15-300K. The silicon chemistry in interstellar clouds is reviewed and possible consequences of our study are stressed.

Abstract Copyright: ∼

Journal keyword(s): molecular processes - methods: laboratory - ISM: molecules

Simbad objects: 3

Full paper

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Number of rows : 3

N	Identifier	Otype	ICRS (J2000) RA	ICRS (J2000) DEC	Sp type	#ref 1850 - 2023	#notes
1	TMC-1	MoC	04 41 45.9	+25 41 27	~	1620	0
2	NAME Orion-KL	SFR	05 35 14.16	-05 22 21.5	~	2251	1
3	LDN 183	MoC	15 54 12.2	-02 49 42	~	740	1

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