DISSOCIATIVE RECOMBINATION MEASUREMENTS OF HCl+ USING AN ION STORAGE RING

doi:10.1088/0004-637X/777/1/54

	DISSOCIATIVE RECOMBINATION MEASUREMENTS OF HCl+ USING AN ION STORAGE RING
	Novotny, O.1; Becker, A.2; Buhr, H.2; Domesle, C.2; Geppert, W.3; Grieser, M.2; Krantz, C.2; Kreckel, H.2; Repnow, R.2; Schwalm, D.2,4
刊名	ASTROPHYSICAL JOURNAL
	2013-11-01
卷号	777
关键词	Astrochemistry Ism: Clouds Ism: Molecules Methods: Laboratory: Molecular Molecular Data Molecular Processes
ISSN号	0004-637X
DOI	10.1088/0004-637X/777/1/54
文献子类	Article
英文摘要	We have measured dissociative recombination (DR) of HCl+ with electrons using a merged beams configuration at the TSR heavy-ion storage ring located at the Max Planck Institute for Nuclear Physics in Heidelberg, Germany. We present the measured absolute merged beams recombination rate coefficient for collision energies from 0 to 4.5 eV. We have also developed a new method for deriving the cross section from the measurements. Our approach does not suffer from approximations made by previously used methods. The cross section was transformed to a plasma rate coefficient for the electron temperature range from T = 10 to 5000 K. We show that the previously used HCl+ DR data underestimate the plasma rate coefficient by a factor of 1.5 at T = 10 K and overestimate it by a factor of three at T = 300 K. We also find that the new data may partly explain existing discrepancies between observed abundances of chlorine-bearing molecules and their astrochemical models.
资助项目	COST Action[CM0805]
WOS关键词	HIGH-RESOLUTION MEASUREMENT ; CHLORINE-BEARING MOLECULES ; DENSE INTERSTELLAR CLOUDS ; DIELECTRONIC-RECOMBINATION ; HYDROGEN-CHLORIDE ; HERSCHEL/HIFI DISCOVERY ; BEAM ; TSR ; PHOTODISSOCIATION ; PREDISSOCIATION
WOS研究方向	Astronomy & Astrophysics
语种	英语
出版者	IOP PUBLISHING LTD
WOS记录号	WOS:000326147300054
内容类型	期刊论文
源URL	[http://119.78.100.186/handle/113462/48493]
专题	中国科学院近代物理研究所
通讯作者	Novotny, O.
作者单位	1.Columbia Univ, Columbia Astrophys Lab, New York, NY 10027 USA 2.Max Planck Inst Nucl Phys, D-69117 Heidelberg, Germany 3.Stockholm Univ, Dept Phys, SE-10691 Stockholm, Sweden 4.Weizmann Inst Sci, Dept Particle Phys & Astrophys, IL-76100 Rehovot, Israel 5.Univ Giessen, Inst Atom & Mol Phys, D-35392 Giessen, Germany 6.Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Peoples R China
推荐引用方式 GB/T 7714	Novotny, O.,Becker, A.,Buhr, H.,et al. DISSOCIATIVE RECOMBINATION MEASUREMENTS OF HCl+ USING AN ION STORAGE RING[J]. ASTROPHYSICAL JOURNAL,2013,777.
APA	Novotny, O..,Becker, A..,Buhr, H..,Domesle, C..,Geppert, W..,...&Savin, D. W..(2013).DISSOCIATIVE RECOMBINATION MEASUREMENTS OF HCl+ USING AN ION STORAGE RING.ASTROPHYSICAL JOURNAL,777.
MLA	Novotny, O.,et al."DISSOCIATIVE RECOMBINATION MEASUREMENTS OF HCl+ USING AN ION STORAGE RING".ASTROPHYSICAL JOURNAL 777(2013).