Utilizza questo identificativo per citare o creare un link a questo documento:
http://hdl.handle.net/20.500.12386/27381
Titolo: | Zeeman Effect in Sulfur Monoxide: a Probe to Observe Magnetic Fields in Star Forming Regions? | Autori: | Cazzoli, Gabriele Lattanzi, Valerio Coriani, Sonia Gauss, Jürgen CODELLA, CLAUDIO Ramos, Andrés Asensio Cernicharo, Jose Puzzarini, Cristina |
Data pubblicazione: | 2017 | Titolo del volume in cui è pubblicato il poster: | 72nd International Symposium on Molecular Spectroscopy | Da pagina:: | TF09 | Abstract: | Magnetic fields play a fundamental role in star formation processes and the best method to evaluate their intensity is is to measure the Zeeman effect of atomic and molecular lines. However, a direct measurement of the Zeeman spectral pattern from interstellar molecular species is challenging due to the high sensitivity and high spectral resolution required. So far, the Zeeman effect has been detected unambiguously in star forming regions for very few non-masing species, such as OH and CN. We decided to investigate the ability of sulfur monoxide (SO), which is one of the most abundant species in star forming regions, for probing the intensity of magnetic fields via Zeeman effect. The Zeeman effect for several rotational transitions of SO in the (sub-)mm spectral regions has been investigated by using a frequency-modulated, computer-controlled spectrometer, and by applying a magnetic field parallel to the radiation source. To support the experimental determination of the g factors of SO, a systematic quantum-chemical investigation of these parameters for both SO and O_2 has been carried out. An effective experimental-computational strategy for providing accurate g factors as well as for identifying the rotational transitions showing the strongest Zeeman effect has been presented. Our investigation supports SO as a good candidate for probing magnetic fields in high-density star forming regions. | Titolo del convegno: | 72nd International Symposium on Molecular Spectroscopy | Luogo del convegno: | Champaign-Urbana, Illinois | Periodo del convegno: | 19-23 June, 2017 | URI: | http://hdl.handle.net/20.500.12386/27381 | URL: | https://www.ideals.illinois.edu/handle/2142/96840 | DOI: | 10.15278/isms.2017.TF09 | Bibcode ADS: | 2017isms.confETF09C | Fulltext: | open |
È visualizzato nelle collezioni: | 3.02 Abstract in Atti di convegno |
File in questo documento:
File | Descrizione | Dimensioni | Formato | |
---|---|---|---|---|
2434.pdf | Abstract | 18.1 kB | Adobe PDF | Visualizza/apri |
Page view(s)
74
controllato il 20-apr-2024
Download(s)
14
controllato il 20-apr-2024
Google ScholarTM
Check
Altmetric
Altmetric
Tutti i documenti in DSpace sono pubblicati ad Accesso Aperto, salvo diversa indicazione per alcuni documenti specifici.