Utilizza questo identificativo per citare o creare un link a questo documento:
http://hdl.handle.net/20.500.12386/30528
Titolo: | Mid-IR band strength, density, refractive index, and thermal evolution study for solid CH2DOH pure and in astrophysical relevant mixtures | Autori: | SCIRE` SCAPPUZZO, Carlotta URSO, Riccardo Giovanni Fulvio, Daniele BARATTA, Giuseppe PALUMBO, Maria Elisabetta |
Data pubblicazione: | 2019 | Rivista: | SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY | Numero: | 219 | Da pagina:: | 288 | Abstract: | We present a novel experimental study on solid CH2DOH pure and in astrophysical relevant mixtures. Solid samples were accreted under ultra high vacuum conditions at 17 K and were analyzed by mid-infrared transmission spectroscopy. Refractive index, density, and mid-IR band strength values were measured for pure solid CH2DOH. The refractive index was also measured for CH2DOH:H2O, CH2DOH:CO, and CH2DOH:CH3OH mixtures. For all samples, the thermal evolution of the main band profile was studied. We used the interference laser technique (Hesbnd Ne laser, λ = 543.5 nm) to measure the samples thickness and a numerical method to measure the refractive index starting from the amplitude of the interference curve. We obtained the ice density through the Lorentz-Lorenz relation. To calculate the band strength values we used the linear fit of the integrated band intensities with respect to the column densities. Samples deposited at 17 K were warmed up to their sublimation temperature. Spectra were taken at selected temperatures to study their thermal evolution. The results are discussed in view of their relevance for the interpretation of astronomical IR spectra. | URI: | http://hdl.handle.net/20.500.12386/30528 | URL: | https://www.sciencedirect.com/science/article/pii/S1386142519303968?via%3Dihub | ISSN: | 1386-1425 | DOI: | 10.1016/j.saa.2019.04.021 | Bibcode ADS: | 2019AcSpA.219..288S | Fulltext: | open |
È visualizzato nelle collezioni: | 1.01 Articoli in rivista |
File in questo documento:
File | Descrizione | Dimensioni | Formato | |
---|---|---|---|---|
Manuscript Scirè et al.pdf | postprint | 2.2 MB | Adobe PDF | Visualizza/apri |
Scirè et al 2019 final.pdf | [Administrators only] | 1.64 MB | Adobe PDF |
Page view(s)
64
controllato il 29-mar-2024
Download(s)
19
controllato il 29-mar-2024
Google ScholarTM
Check
Altmetric
Altmetric
Tutti i documenti in DSpace sono pubblicati ad Accesso Aperto, salvo diversa indicazione per alcuni documenti specifici.