Photoabsorption spectra of solid O2 in ultraviolet and far-vacuum ultraviolet region at 9-30 K

Jen Iu Lo; Hsiao Chi Lu; Wei Hsiu Hung; B. Sivaraman; N. J. Mason; Bing Ming Cheng

doi:10.1093/mnras/stae779

Photoabsorption spectra of solid O₂ in ultraviolet and far-vacuum ultraviolet region at 9-30 K

Jen Iu Lo, Hsiao Chi Lu, Wei Hsiu Hung, B. Sivaraman, N. J. Mason, Bing Ming Cheng^*

^*此作品的通信作者

化學系

研究成果: 雜誌貢獻 › 期刊論文 › 同行評審

摘要

We report ultraviolet and far-vacuum ultraviolet (FUV) absorption spectra of solid molecular oxygen recorded over the wavelength region 110-365 nm for temperatures between 9 and 30 K, in which the light source was dispersed from a synchrotron. The UV/FUV spectra of solids O₂ deposited at various temperatures appeared distinctly different profiles due to variation of compositions of α-O₂, β-O₂, and the imperfect crystal structure at the specific temperature; in addition, the icy sample exhibited its own scattering curve deposited at specific temperature. Resolved from the thermal ramping technique, the absorption spectra of solids α-O₂ and β-O₂ were established in the wavelength region 110-250 nm at 9 and 30 K, respectively, for the first time.

原文	英語
頁（從 - 到）	4818-4823
頁數	6
期刊	Monthly Notices of the Royal Astronomical Society
卷	529
發行號	4
DOIs	https://doi.org/10.1093/mnras/stae779
出版狀態	已發佈 - 2024 4月 1

ASJC Scopus subject areas

天文和天體物理學
空間與行星科學

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10.1093/mnras/stae779

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title = "Photoabsorption spectra of solid O2 in ultraviolet and far-vacuum ultraviolet region at 9-30 K",

abstract = "We report ultraviolet and far-vacuum ultraviolet (FUV) absorption spectra of solid molecular oxygen recorded over the wavelength region 110-365 nm for temperatures between 9 and 30 K, in which the light source was dispersed from a synchrotron. The UV/FUV spectra of solids O2 deposited at various temperatures appeared distinctly different profiles due to variation of compositions of α-O2, β-O2, and the imperfect crystal structure at the specific temperature; in addition, the icy sample exhibited its own scattering curve deposited at specific temperature. Resolved from the thermal ramping technique, the absorption spectra of solids α-O2 and β-O2 were established in the wavelength region 110-250 nm at 9 and 30 K, respectively, for the first time.",

keywords = "ISM: molecules, methods: laboratory: molecular, methods: laboratory: solid state, molecular data, ultraviolet: ISM",

author = "Lo, {Jen Iu} and Lu, {Hsiao Chi} and Hung, {Wei Hsiu} and B. Sivaraman and Mason, {N. J.} and Cheng, {Bing Ming}",

note = "Publisher Copyright: {\textcopyright} 2024 The Author(s). Published by Oxford University Press on behalf of Royal Astronomical Society.",

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doi = "10.1093/mnras/stae779",

language = "English",

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TY - JOUR

T1 - Photoabsorption spectra of solid O2 in ultraviolet and far-vacuum ultraviolet region at 9-30 K

AU - Lo, Jen Iu

AU - Lu, Hsiao Chi

AU - Hung, Wei Hsiu

AU - Sivaraman, B.

AU - Mason, N. J.

AU - Cheng, Bing Ming

PY - 2024/4/1

Y1 - 2024/4/1

N2 - We report ultraviolet and far-vacuum ultraviolet (FUV) absorption spectra of solid molecular oxygen recorded over the wavelength region 110-365 nm for temperatures between 9 and 30 K, in which the light source was dispersed from a synchrotron. The UV/FUV spectra of solids O2 deposited at various temperatures appeared distinctly different profiles due to variation of compositions of α-O2, β-O2, and the imperfect crystal structure at the specific temperature; in addition, the icy sample exhibited its own scattering curve deposited at specific temperature. Resolved from the thermal ramping technique, the absorption spectra of solids α-O2 and β-O2 were established in the wavelength region 110-250 nm at 9 and 30 K, respectively, for the first time.

AB - We report ultraviolet and far-vacuum ultraviolet (FUV) absorption spectra of solid molecular oxygen recorded over the wavelength region 110-365 nm for temperatures between 9 and 30 K, in which the light source was dispersed from a synchrotron. The UV/FUV spectra of solids O2 deposited at various temperatures appeared distinctly different profiles due to variation of compositions of α-O2, β-O2, and the imperfect crystal structure at the specific temperature; in addition, the icy sample exhibited its own scattering curve deposited at specific temperature. Resolved from the thermal ramping technique, the absorption spectra of solids α-O2 and β-O2 were established in the wavelength region 110-250 nm at 9 and 30 K, respectively, for the first time.

KW - ISM: molecules

KW - methods: laboratory: molecular

KW - methods: laboratory: solid state

KW - molecular data

KW - ultraviolet: ISM

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U2 - 10.1093/mnras/stae779

DO - 10.1093/mnras/stae779

M3 - Article

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SN - 0035-8711

VL - 529

SP - 4818

EP - 4823

JO - Monthly Notices of the Royal Astronomical Society

JF - Monthly Notices of the Royal Astronomical Society

IS - 4

ER -

Photoabsorption spectra of solid O2 in ultraviolet and far-vacuum ultraviolet region at 9-30 K

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Photoabsorption spectra of solid O₂ in ultraviolet and far-vacuum ultraviolet region at 9-30 K