Utilizza questo identificativo per citare o creare un link a questo documento:
http://hdl.handle.net/20.500.12386/27600
Campo DC | Valore | Lingua |
---|---|---|
dc.contributor.author | Lankhaar, Boy | en_US |
dc.contributor.author | Vlemmings, Wouter | en_US |
dc.contributor.author | Surcis, Gabriele | en_US |
dc.contributor.author | van Langevelde, Huib Jan | en_US |
dc.contributor.author | Groenenboom, Gerrit C. | en_US |
dc.contributor.author | van der Avoird, Ad | en_US |
dc.date.accessioned | 2020-10-06T06:56:17Z | - |
dc.date.available | 2020-10-06T06:56:17Z | - |
dc.date.issued | 2018 | en_US |
dc.identifier.isbn | 978-1107192454 | en_US |
dc.identifier.issn | 1743-9213 | en_US |
dc.identifier.uri | http://hdl.handle.net/20.500.12386/27600 | - |
dc.description.abstract | Maser observations of both linearly and circularly polarized emission have provided unique information on the magnetic field in the densest parts of star forming regions, where non-maser magnetic field tracers are scarce. While linear polarization observations provide morphological constraints, magnetic field strengths are determined by measuring the Zeeman splitting in circularly polarized emission. Methanol is of special interest as it is one of the most abundant maser species and its different transitions probe unique areas around the protostar. However, its precise Zeeman-parameters are unknown. Experimental efforts to determine these Zeeman-parameters have failed. Here we present quantum-chemical calculations of the Zeeman-parameters of methanol, along with calculations of the hyperfine structure that are necessary to interpret the Zeeman effect in methanol. We use this model in re-analyzing methanol maser polarization observations. We discuss different mechanisms for hyperfine-state preference in the pumping of torsion-rotation transitions involved in the maser-action. | en_US |
dc.language.iso | eng | en_US |
dc.title | Quantum-Chemical calculations revealing the effects of magnetic fields on methanol masers | en_US |
dc.type | Conference paper | - |
dc.identifier.doi | 10.1017/S1743921318000686 | en_US |
dc.identifier.scopus | 2-s2.0-85060086800 | en_US |
dc.identifier.url | https://www.cambridge.org/core/journals/proceedings-of-the-international-astronomical-union/article/quantumchemical-calculations-revealing-the-effects-of-magnetic-fields-on-methanol-masers/B0301AA5A1C88D062A1A497E8D4D3A6C | en_US |
dc.relation.medium | STAMPA | en_US |
dc.relation.volume | vol. 13, S336 | en_US |
dc.relation.firstpage | 23 | en_US |
dc.relation.lastpage | 26 | en_US |
dc.relation.numberofpages | 4 | en_US |
dc.type.referee | REF_0 | en_US |
dc.description.international | sì | en_US |
dc.contributor.country | ITA | en_US |
dc.contributor.country | NLD | en_US |
dc.contributor.country | SWE | en_US |
dc.relation.alleditors | Tarchi, Andrea; Reid, Mark J.; Castangia, Paola | en_US |
dc.relation.ispartofbook | Astrophysical Masers: Unlocking the Mysteries of the Universe | en_US |
dc.type.invited | no | en_US |
dc.relation.conferencename | IAUS 336: Astrophysical Masers: Unlocking the Mysteries of the Universe | en_US |
dc.relation.conferenceplace | Cagliari, Italia | en_US |
dc.relation.conferencedate | 4-8 Settembre, 2017 | en_US |
dc.relation.scientificsector | FIS/05 - ASTRONOMIA E ASTROFISICA | en_US |
dc.type.miur | 273 Contributo in Atti di convegno | - |
dc.relation.series | PROCEEDINGS OF THE INTERNATIONAL ASTRONOMICAL UNION | en_US |
dc.identifier.adsbibcode | 2018IAUS..336...23L | en_US |
dc.relation.ercsector | ERC sectors::Physical Sciences and Engineering::PE9 Universe sciences: astro-physics/chemistry/biology; solar systems; stellar, galactic and extragalactic astronomy, planetary systems, cosmology, space science, instrumentation | en_US |
dc.description.apc | no | en_US |
dc.description.oa | 1 – prodotto con file in versione Open Access (allegare il file al passo 5-Carica) | en_US |
item.openairecristype | http://purl.org/coar/resource_type/c_18cf | - |
item.fulltext | With Fulltext | - |
item.grantfulltext | open | - |
item.languageiso639-1 | en | - |
item.openairetype | Conference paper | - |
item.cerifentitytype | Publications | - |
crisitem.journal.journalissn | 1743-9213 | - |
crisitem.journal.ance | E192651 | - |
crisitem.author.dept | O.A. Cagliari | - |
crisitem.author.orcid | 0000-0003-2775-442X | - |
È visualizzato nelle collezioni: | 3.01 Contributi in Atti di convegno |
File in questo documento:
File | Descrizione | Dimensioni | Formato | |
---|---|---|---|---|
proceed_zeeman_2.pdf | postprint | 256.76 kB | Adobe PDF | Visualizza/apri |
IAU Symp 336.pdf | Pdf editoriale | 161.05 kB | Adobe PDF | Visualizza/apri |
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