2010A&A...522A..90H

Query : 2010A&A...522A..90H

2010A&A...522A..90H - Astronomy and Astrophysics, volume 522A90-90 (2010/11-1)

Experimental studies of the dissociative recombination of CD₃CDOD⁺ and CH₃CH₂OH₂⁺.

HAMBERG M., ZHAUNERCHYK V., VIGREN E., KAMINSKA M., KASHPERKA I., ZHANG M., TRIPPEL S., OSTERDAHL F., AF UGGLAS M., THOMAS R.D., KAELLBERG A., SIMONSSON A., PAAL A., SEMANIAK J., LARSSON M. and GEPPERT W.D.

Abstract (from CDS):

We determine branching fractions, cross sections and thermal rate constants for the dissociative recombination of CD₃CDOD⁺ and CH₃CH₂OH₂⁺ at the low relative kinetic energies encountered in the interstellar medium. The experiments were carried out by merging an ion and electron beam at the heavy ion storage ring CRYRING, Stockholm, Sweden.Break-up of the CCO structure into three heavy fragments is not found for either of the ions. Instead the CCO structure is retained in 23±3% of the DR reactions of CD₃CDOD⁺ and 7±3% in the DR of CH₃CH₂OH₂⁺, whereas rupture into two heavy fragments occurs in 77±3% and 93±3% of the DR events of the respective ions. The measured cross sections were fitted between 1-200 meV yielding the following thermal rate constants and cross-section dependencies on the relative kinetic energy: σ(E_cm[eV])=1.7±0.3x10^–15(E_cm[eV])^{–1.23±0.02}cm² and k(T)= 1.9±0.4x10^–6(T/300)^{–0.73±0.02}cm³/s for CH₃CH₂OH₂⁺ as well as k(T)=1.1±0.4x10^–6(T/300)^{–0.74±0.05}cm³/s and σ(E_cm[eV])=9.2±4x10^–16(E_cm[eV])^{–1.24±0.05}cm² for CD₃CDOD⁺

Abstract Copyright: ∼

Journal keyword(s): astrochemistry - molecular processes - plasmas - methods: laboratory

Simbad objects: 1

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Number of rows : 1

N	Identifier	Otype	ICRS (J2000) RA	ICRS (J2000) DEC	Mag U	Mag B	Mag V	Mag R	Mag I	Sp type	#ref 1850 - 2026	#notes
1	IRAS 16293-2422	cor	16 32 22.56	-24 28 31.8						~	1357	1

Query : 2010A&A...522A..90H

Basic data :

IRAS 16293-2422 -- Dense Core
Other object types:	`smm (2008ApJ,JCMTLSG,...)`, `IR (2013ApJS,HGBS,...)`, `MIR (SSTc2d,WISEA,...)`, `YO (2015MNRAS,[EES2009])`, `Y? (2015ApJS,[HL2013])`, `mm (2009ApJ,[YEE2006])`, `cor (2020A&A)`, `PoC ([FST86])`
ICRS coord. (ep=J2000) :	`16 32 22.56 -24 28 31.8 (Infrared) [ 300 300 90 ] C 2009ApJ...692..973E`
FK4 coord. (ep=B1950 eq=1950) :	`16 29 20.71 -24 22 11.7 [ 300 300 90 ]`
Gal coord. (ep=J2000) :	`353.93571 +15.84097 [ 300 300 90 ]`
Angular size (arcmin):	`0.35 0.13 136 (FIR) C` `2020A&A...638A..74L`

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`HGBS J163223.1-242836`	`NAME IRAS 16293`	`WISE J163222.62-242833.6`	`[JJK2008] SMM J163223-24284`
`IRAS 16293-2422`	`NAME rho Oph East`	`[EDJ2009] 1008`	`[NWA2006] SMM 20`
`JCMTLSG J163222.6-242833`	`SSTc2d J163222.6-242832`	`[EES2009] Oph-emb 2`	`[YEE2006] 37`
`JCMTSE J163222.8-242837`	`SSTc2d J163222.6-242831`	`[FST86] rho Oph E`
`JCMTSF J163222.8-242837`	`WISEA J163222.60-242833.6`	`[HL2013] 248.09427-24.47550`

References (1357 between 1850 and 2026) (Total 1357)
Simbad bibliographic survey began in 1850 for stars (at least bright stars) and in 1983 for all other objects (outside the solar system).

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Data at NED - NASA/IPAC Extragalactic Database : IRAS 16293-2422

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IRAS 16293-2422 WISEA J163222.60-242833.6 WISE J163222.62-242833.6

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