DISSOCIATIVE RECOMBINATION MEASUREMENTS OF NH+ USING AN ION STORAGE RING
文献类型：期刊论文
| 作者 | Novotny, O.1; Berg, M.2; Bing, D.2; Buhr, H.2; Geppert, W.3; Grieser, M.2; Grussie, F.2; Krantz, C.2; Mendes, M. B.2; Nordhorn, C.2 |
| 刊名 | ASTROPHYSICAL JOURNAL
 |
| 出版日期 | 2014-09-10 |
| 卷号 | 792 |
| 关键词 | Astrochemistry Ism: Clouds Ism: Molecules Methods: Laboratory: Molecular Molecular Data Molecular Processes |
| ISSN号 | 0004-637X |
| DOI | 10.1088/0004-637X/792/2/132 |
| 文献子类 | Article |
| 英文摘要 | We have investigated dissociative recombination (DR) of NH+ 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 our measured absolute merged-beams recombination rate coefficient for collision energies from 0 to 12 eV. From these data, we have extracted a cross section, which we have transformed to a plasma rate coefficient for the collisional plasma temperature range from T-p1 = 10 to 18,000 K. We show that the NH+ DR rate coefficient data in current astrochemical models are underestimated by up to a factor of approximately nine. Our new data will result in predicted NH+ abundances lower than those calculated by present models. This is in agreement with the sensitivity limits of all observations attempting to detect NH+ in interstellar clouds. |
| WOS关键词 | HIGH-RESOLUTION ; NITROGEN HYDRIDES ; HERSCHEL/HIFI OBSERVATIONS ; INTERSTELLAR NH ; G10.6-0.4 W31C ; MOLECULAR-IONS ; AB-INITIO ; STATES ; CHEMISTRY ; BEAM |
| 资助项目 | Joint Funds of the National Natural Science Foundation of China[U1332206] |
| WOS研究方向 | Astronomy & Astrophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:000341172200050 |
| 出版者 | IOP PUBLISHING LTD |
| 源URL | [http://119.78.100.186/handle/113462/49453]  |
| 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, Fac Phys, IL-76100 Rehovot, Israel 5.Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Peoples R China |
| 推荐引用方式 GB/T 7714 | Novotny, O.,Berg, M.,Bing, D.,et al. DISSOCIATIVE RECOMBINATION MEASUREMENTS OF NH+ USING AN ION STORAGE RING[J]. ASTROPHYSICAL JOURNAL,2014,792. |
| APA | Novotny, O..,Berg, M..,Bing, D..,Buhr, H..,Geppert, W..,...&Savin, D. W..(2014).DISSOCIATIVE RECOMBINATION MEASUREMENTS OF NH+ USING AN ION STORAGE RING.ASTROPHYSICAL JOURNAL,792. |
| MLA | Novotny, O.,et al."DISSOCIATIVE RECOMBINATION MEASUREMENTS OF NH+ USING AN ION STORAGE RING".ASTROPHYSICAL JOURNAL 792(2014). |
入库方式： OAI收割
来源：近代物理研究所
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