Dissociative recombination measurements of NH\(^+\) using an ion storage ring
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 coeffi...
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| creator | Novotný, O Berg, M Bing, D Buhr, H Geppert, W Grieser, M Grussie, F Krantz, C Mendes, M B Nordhorn, C Repnow, R Schwalm, D Yang, B Wolf, A Savin, D W |
| description | 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 \(T_{\rm pl} = 10\) to \(18000\) K. We show that the NH\(^+\) DR rate coefficient data in current astrochemical models are underestimated by up to a factor of \(\sim 9\). Our new data will result in predicted NH\(^+\) abundances lower than calculated by present models. This is in agreement with the sensitivity limits of all observations attempting to detect NH\(^+\) in interstellar clouds. |
| doi_str_mv | 10.48550/arxiv.1407.0538 |
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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 \(T_{\rm pl} = 10\) to \(18000\) K. We show that the NH\(^+\) DR rate coefficient data in current astrochemical models are underestimated by up to a factor of \(\sim 9\). Our new data will result in predicted NH\(^+\) abundances lower than calculated by present models. This is in agreement with the sensitivity limits of all observations attempting to detect NH\(^+\) in interstellar clouds.</description><identifier>EISSN: 2331-8422</identifier><identifier>DOI: 10.48550/arxiv.1407.0538</identifier><language>eng</language><publisher>Ithaca: Cornell University Library, arXiv.org</publisher><subject>Coefficients ; Collisional plasmas ; Electron beams ; Electron recombination ; Interstellar matter ; Ion beams ; Ion recombination ; Ion storage ; Nuclear physics ; Physics - Atomic Physics ; Physics - Instrumentation and Methods for Astrophysics ; Plasma temperature ; Temperature</subject><ispartof>arXiv.org, 2014-07</ispartof><rights>2014. This work is published under http://arxiv.org/licenses/nonexclusive-distrib/1.0/ (the “License”). 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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 \(T_{\rm pl} = 10\) to \(18000\) K. We show that the NH\(^+\) DR rate coefficient data in current astrochemical models are underestimated by up to a factor of \(\sim 9\). Our new data will result in predicted NH\(^+\) abundances lower than calculated by present models. This is in agreement with the sensitivity limits of all observations attempting to detect NH\(^+\) in interstellar clouds.</description><subject>Coefficients</subject><subject>Collisional plasmas</subject><subject>Electron beams</subject><subject>Electron recombination</subject><subject>Interstellar matter</subject><subject>Ion beams</subject><subject>Ion recombination</subject><subject>Ion storage</subject><subject>Nuclear physics</subject><subject>Physics - Atomic Physics</subject><subject>Physics - Instrumentation and Methods for Astrophysics</subject><subject>Plasma temperature</subject><subject>Temperature</subject><issn>2331-8422</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2014</creationdate><recordtype>article</recordtype><sourceid>ABUWG</sourceid><sourceid>AFKRA</sourceid><sourceid>AZQEC</sourceid><sourceid>BENPR</sourceid><sourceid>CCPQU</sourceid><sourceid>DWQXO</sourceid><sourceid>GOX</sourceid><recordid>eNotj99LwzAQx4MgOObefZKAL4q0JrmkaR9l_pgw9WWPw5K2l5Fhm5m0Q_97O-e9HPflc8d9CLngLJW5UuzOhG-3T7lkOmUK8hMyEQA8yaUQZ2QW45YxJjItlIIJeX1wMframd7tkQasfVu5bpx8R1s0cQjYYtdH6i19W6yvP27XN3SIrttQ09EDFXsfzGbcHbNzcmrNZ8TZf5-S1dPjar5Ilu_PL_P7ZWIUhyRrFEhdaavqIgOjeV0ViIJZVVQ8FxYLqCw2CHwsJipAVphMS9SMKdtImJLL49k_1XIXXGvCT3lQLg_KI3B1BHbBfw0Y-3Lrh9CNL5WC5RJypTOAX2OzWLQ</recordid><startdate>20140718</startdate><enddate>20140718</enddate><creator>Novotný, O</creator><creator>Berg, M</creator><creator>Bing, D</creator><creator>Buhr, H</creator><creator>Geppert, W</creator><creator>Grieser, M</creator><creator>Grussie, F</creator><creator>Krantz, C</creator><creator>Mendes, M B</creator><creator>Nordhorn, C</creator><creator>Repnow, R</creator><creator>Schwalm, D</creator><creator>Yang, B</creator><creator>Wolf, A</creator><creator>Savin, D W</creator><general>Cornell University Library, arXiv.org</general><scope>8FE</scope><scope>8FG</scope><scope>ABJCF</scope><scope>ABUWG</scope><scope>AFKRA</scope><scope>AZQEC</scope><scope>BENPR</scope><scope>BGLVJ</scope><scope>CCPQU</scope><scope>DWQXO</scope><scope>HCIFZ</scope><scope>L6V</scope><scope>M7S</scope><scope>PIMPY</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>PRINS</scope><scope>PTHSS</scope><scope>GOX</scope></search><sort><creationdate>20140718</creationdate><title>Dissociative recombination measurements of NH\(^+\) using an ion storage ring</title><author>Novotný, O ; Berg, M ; Bing, D ; Buhr, H ; Geppert, W ; Grieser, M ; Grussie, F ; Krantz, C ; Mendes, M B ; Nordhorn, C ; Repnow, R ; Schwalm, D ; Yang, B ; Wolf, A ; Savin, D W</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-a513-6d5347b7f5c963a71cb9ee20f59b182fe93bfede3111102b3e09a674e7005fd43</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2014</creationdate><topic>Coefficients</topic><topic>Collisional plasmas</topic><topic>Electron beams</topic><topic>Electron recombination</topic><topic>Interstellar matter</topic><topic>Ion beams</topic><topic>Ion recombination</topic><topic>Ion storage</topic><topic>Nuclear physics</topic><topic>Physics - Atomic Physics</topic><topic>Physics - Instrumentation and Methods for Astrophysics</topic><topic>Plasma temperature</topic><topic>Temperature</topic><toplevel>online_resources</toplevel><creatorcontrib>Novotný, O</creatorcontrib><creatorcontrib>Berg, M</creatorcontrib><creatorcontrib>Bing, D</creatorcontrib><creatorcontrib>Buhr, H</creatorcontrib><creatorcontrib>Geppert, W</creatorcontrib><creatorcontrib>Grieser, M</creatorcontrib><creatorcontrib>Grussie, F</creatorcontrib><creatorcontrib>Krantz, C</creatorcontrib><creatorcontrib>Mendes, M B</creatorcontrib><creatorcontrib>Nordhorn, C</creatorcontrib><creatorcontrib>Repnow, R</creatorcontrib><creatorcontrib>Schwalm, D</creatorcontrib><creatorcontrib>Yang, B</creatorcontrib><creatorcontrib>Wolf, A</creatorcontrib><creatorcontrib>Savin, D W</creatorcontrib><collection>ProQuest SciTech Collection</collection><collection>ProQuest Technology Collection</collection><collection>Materials Science & Engineering Collection</collection><collection>ProQuest Central (Alumni Edition)</collection><collection>ProQuest Central UK/Ireland</collection><collection>ProQuest Central Essentials</collection><collection>ProQuest Central</collection><collection>Technology Collection (ProQuest)</collection><collection>ProQuest One Community College</collection><collection>ProQuest Central Korea</collection><collection>SciTech Premium Collection</collection><collection>ProQuest Engineering Collection</collection><collection>Engineering Database</collection><collection>Publicly Available Content Database</collection><collection>ProQuest One Academic Eastern Edition (DO NOT USE)</collection><collection>ProQuest One Academic</collection><collection>ProQuest One Academic UKI Edition</collection><collection>ProQuest Central China</collection><collection>Engineering Collection</collection><collection>arXiv.org</collection><jtitle>arXiv.org</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Novotný, O</au><au>Berg, M</au><au>Bing, D</au><au>Buhr, H</au><au>Geppert, W</au><au>Grieser, M</au><au>Grussie, F</au><au>Krantz, C</au><au>Mendes, M B</au><au>Nordhorn, C</au><au>Repnow, R</au><au>Schwalm, D</au><au>Yang, B</au><au>Wolf, A</au><au>Savin, D W</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Dissociative recombination measurements of NH\(^+\) using an ion storage ring</atitle><jtitle>arXiv.org</jtitle><date>2014-07-18</date><risdate>2014</risdate><eissn>2331-8422</eissn><abstract>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 \(T_{\rm pl} = 10\) to \(18000\) K. We show that the NH\(^+\) DR rate coefficient data in current astrochemical models are underestimated by up to a factor of \(\sim 9\). Our new data will result in predicted NH\(^+\) abundances lower than calculated by present models. This is in agreement with the sensitivity limits of all observations attempting to detect NH\(^+\) in interstellar clouds.</abstract><cop>Ithaca</cop><pub>Cornell University Library, arXiv.org</pub><doi>10.48550/arxiv.1407.0538</doi><oa>free_for_read</oa></addata></record> |
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| subjects | Coefficients Collisional plasmas Electron beams Electron recombination Interstellar matter Ion beams Ion recombination Ion storage Nuclear physics Physics - Atomic Physics Physics - Instrumentation and Methods for Astrophysics Plasma temperature Temperature |
| title | Dissociative recombination measurements of NH\(^+\) using an ion storage ring |
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