Glenn S. Orton , Magnus Gustafsson , Leigh N. Fletcher , Michael T. Roman , James A. Sinclair
{"title":"Improved H2–He and H2-H2 collision-induced absorption models and application to outer-planet atmospheres","authors":"Glenn S. Orton , Magnus Gustafsson , Leigh N. Fletcher , Michael T. Roman , James A. Sinclair","doi":"10.1016/j.jqsrt.2025.109634","DOIUrl":"10.1016/j.jqsrt.2025.109634","url":null,"abstract":"<div><div>Using state-of-the-art <em>ab initio</em> interaction-induced dipole and potential-energy surfaces for hydrogen–helium (H<sub>2</sub>–He) pairs, we compute the rototranslational collision-induced absorption coefficient at 40-400 K for frequencies covering 0-4000 cm<sup>−1</sup>. The quantum mechanical scattering calculations account for the full anisotropic interaction potential, replacing the isotropic approximation. The absorption data are expected to be accurate with an uncertainty of 2% or better up to 2500 cm<sup>−1</sup>. The uncertainty is slightly higher at the highest frequencies where the rototranslational absorption is largely obscured by the rovibrational band. Our improved agreement with measurements at 200-800 cm<sup>−1</sup> result from the improvement of the potential energy surface. The previously available rototranslational data set for H<sub>2</sub>–H<sub>2</sub> pairs (Fletcher et al., <em>Astrophys. J. Supp</em>. <strong>235</strong>, 24 (2018)) is also extended up to 4000 cm<sup>−1</sup>. In the rovibrational band previous isotropic potential calculations for H<sub>2</sub>–He (Gustafsson et al., <em>J. Chem. Phys</em>. <strong>113</strong>, 3641 (2000)) and H<sub>2</sub>–H<sub>2</sub> (Borysow, <em>Icarus</em> <strong>92</strong>, 273 (1992)) have been extended to complement the rototranslational data set. The absorption coefficients are tabulated for <em>ortho</em>-to-<em>para</em> ratios from normal-H<sub>2</sub> to pure <em>para</em>-H<sub>2</sub>, as well as equilibrium-H<sub>2</sub>, over 40-400 K . The effect of these updates are simulated for the cold atmosphere of Uranus and warmer atmosphere of Jupiter. They are equivalent to a brightness temperature difference of a fraction of a degree in the rototranslational region but up to 4 degrees in the rovibrational region. Our state-of-the-art modifications correct an otherwise +2% error in determining the He/H<sub>2</sub> ratio in Uranus from its spectrum alone.</div></div>","PeriodicalId":16935,"journal":{"name":"Journal of Quantitative Spectroscopy & Radiative Transfer","volume":"347 ","pages":"Article 109634"},"PeriodicalIF":1.9,"publicationDate":"2025-08-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144887093","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Comprehensive absolute line strengths analysis of the 28SiH4 octad: The 24 sub–bands of the octad in the region of 2600–3400 cm−1","authors":"O.N. Ulenikov , O.V. Gromova , E.S. Bekhtereva , N.I. Nikolaeva , E.D. Gorbacheva , V.E. Nikolaeva , C. Sydow , S. Bauerecker","doi":"10.1016/j.jqsrt.2025.109625","DOIUrl":"10.1016/j.jqsrt.2025.109625","url":null,"abstract":"<div><div>Absolute line strengths of <span><math><msup><mrow></mrow><mrow><mn>28</mn></mrow></msup></math></span>SiH<span><math><msub><mrow></mrow><mrow><mn>4</mn></mrow></msub></math></span> were measured for the first time with a Bruker Fourier transform infrared spectrometer IFS125HR and analyzed in the 2600–3400 cm<sup>−1</sup> region where the eight different bands (twenty four sub–bands) of the SiH<span><math><msub><mrow></mrow><mrow><mn>4</mn></mrow></msub></math></span> octad are located. More than 1300 absolute strengths of lines belonging to the <span><math><msub><mrow><mi>F</mi></mrow><mrow><mn>2</mn></mrow></msub></math></span>, <span><math><msub><mrow><mi>F</mi></mrow><mrow><mn>1</mn></mrow></msub></math></span>, and <span><math><mrow><mi>E</mi><mo>−</mo></mrow></math></span>type sub–bands of the octad (<span><math><mrow><msup><mrow><mi>J</mi></mrow><mrow><mtext>max</mtext></mrow></msup><mo>=</mo><mn>22</mn></mrow></math></span>) were determined from the fit of Hartmann–Tran profile to their experimental line shapes and were used then as the initial information in the fit of the effective dipole moment parameters of the octad. The derived set of 19 fitted parameters reproduce 1300 initial absolute line strengths of the <span><math><msup><mrow></mrow><mrow><mn>28</mn></mrow></msup></math></span>SiH<span><math><msub><mrow></mrow><mrow><mn>4</mn></mrow></msub></math></span> octad with <span><math><msub><mrow><mi>d</mi></mrow><mrow><mtext>rms</mtext></mrow></msub></math></span> deviation of 4.6%. A list of the analyzed transitions is presented as the Supplementary data to this paper.</div></div>","PeriodicalId":16935,"journal":{"name":"Journal of Quantitative Spectroscopy & Radiative Transfer","volume":"346 ","pages":"Article 109625"},"PeriodicalIF":1.9,"publicationDate":"2025-08-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144841736","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Jia Wu , Shu Hu , Ke Huang , Zihao Liu , Tao Li , Ling Wang , Xianglong Cai , Baodong Gai , Dongdong Xu , Shutong He , Yannan Tan , Jingwei Guo
{"title":"Exploration of the dynamic process of laser-induced ionization for the preparation of metastable Kr atoms based on the 5p[3/2]2 to 5s[3/2]2 transition","authors":"Jia Wu , Shu Hu , Ke Huang , Zihao Liu , Tao Li , Ling Wang , Xianglong Cai , Baodong Gai , Dongdong Xu , Shutong He , Yannan Tan , Jingwei Guo","doi":"10.1016/j.jqsrt.2025.109627","DOIUrl":"10.1016/j.jqsrt.2025.109627","url":null,"abstract":"<div><div>This paper continues the work of our previous study [J. Quant. Spectrosc. Radiat. Transf. 330 109233], further exploring the dynamics of the metastable 5s[3/2]<sub>2</sub> level of Kr atoms prepared by laser-induced ionization. Focusing on the “photon excitation + radiation” process, “electron-impact excitation + radiation” process, and “ion-electron recombination” process, we obtained the corresponding total collisional decay rate constants <em>k</em><sub>col</sub> for the 5p[3/2]<sub>2</sub> level of (1.11±0.09)×10<sup>−11</sup> cm<sup>3</sup> s<sup>−1</sup>, (0.09±0.03)×10<sup>−11</sup> cm<sup>3</sup> s<sup>−1</sup>, and (0.0010±0.0001)×10<sup>−11</sup> cm<sup>3</sup> s<sup>−1</sup>, respectively, based on time-resolved spectra at 760.15 nm. While the corresponding total radiative decay rates <em>k</em><sub>rad</sub> were (2.58±0.75)×10<sup>7</sup> s<sup>−1</sup>, (0.88±0.29)×10<sup>7</sup> s<sup>−1</sup>, and (0.004±0.001)×10<sup>7</sup> s<sup>−1</sup>. Through the analysis and comparison of the total collisional decay rate constants, and radiative decay rates obtained from the three stages, this study provides an in-depth understanding of the dynamic processes of the interactions between the relevant physical mechanisms during laser-induced ionization to produce metastable atoms. It clearly identifies that the changes in the population replenishment rate of the 5p[3/2]<sub>2</sub> level, due to the collision and radiation channels at different stages, are key factors influencing the values of <em>k</em><sub>col</sub> and <em>k</em><sub>rad</sub>.</div></div>","PeriodicalId":16935,"journal":{"name":"Journal of Quantitative Spectroscopy & Radiative Transfer","volume":"346 ","pages":"Article 109627"},"PeriodicalIF":1.9,"publicationDate":"2025-08-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144860544","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Oleksiy A. Smola, Sergei N. Yurchenko, Jonathan Tennyson
{"title":"Updated ro-vibrational MARVEL levels for ammonia 14NH3","authors":"Oleksiy A. Smola, Sergei N. Yurchenko, Jonathan Tennyson","doi":"10.1016/j.jqsrt.2025.109620","DOIUrl":"10.1016/j.jqsrt.2025.109620","url":null,"abstract":"<div><div>An extended list of empirical ro-vibrational energy levels for the ammonia isotopologue <sup>14</sup>NH<sub>3</sub> is constructed using the MARVEL procedure. The final transition set includes 69710 experimental line positions from 97 experimental sources covering the wavenumber range below 18177 cm<sup>−1</sup> and rotational excitations up to <span><math><mrow><mi>J</mi><mo>=</mo><mn>29</mn></mrow></math></span>. The transition set incorporates 23844 newly collated experimental transitions extending the covered energy range beyond 7500 cm<sup>−1</sup>, yielding 10753 empirical energy levels with uncertainties, an increase of 5817 from the previous MARVEL study. This MARVEL set is then used to reMARVELise the CoYuTe line list for <sup>14</sup>NH<sub>3</sub>, yielding a total of 641836 experimentally accurate line positions. The updated line list is available from <span><span>www.exomol.com</span><svg><path></path></svg></span>.</div></div>","PeriodicalId":16935,"journal":{"name":"Journal of Quantitative Spectroscopy & Radiative Transfer","volume":"346 ","pages":"Article 109620"},"PeriodicalIF":1.9,"publicationDate":"2025-08-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144865154","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
R. Dodangodage , P.F. Bernath , C. Boone , M. Lecours , M. Schmidt
{"title":"Atmospheric ethylene (C2H4) observations from the Atmospheric Chemistry Experiment Fourier Transform Spectrometer (ACE-FTS)","authors":"R. Dodangodage , P.F. Bernath , C. Boone , M. Lecours , M. Schmidt","doi":"10.1016/j.jqsrt.2025.109603","DOIUrl":"10.1016/j.jqsrt.2025.109603","url":null,"abstract":"<div><div>The Atmospheric Chemistry Experiment Fourier Transform Spectrometer (ACE-FTS) utilizes solar occultation to collect high-resolution measurements of atmospheric trace gases as the Sun rises or sets from the satellite’s orbiting perspective. This limb-viewing geometry provides unique and vertically resolved observations of Earth’s atmosphere. In this study, we present improved retrievals of ethylene (C<span><math><msub><mrow></mrow><mrow><mn>2</mn></mrow></msub></math></span>H<span><math><msub><mrow></mrow><mrow><mn>4</mn></mrow></msub></math></span>) from ACE-FTS, offering a comprehensive analysis of its global distribution and temporal variability. The retrievals were enhanced by applying speed-dependent Voigt line shapes to minimize systematic residuals from interfering CO<span><math><msub><mrow></mrow><mrow><mn>2</mn></mrow></msub></math></span> lines, enabling more complete use of the available C<span><math><msub><mrow></mrow><mrow><mn>2</mn></mrow></msub></math></span>H<span><math><msub><mrow></mrow><mrow><mn>4</mn></mrow></msub></math></span> spectral information in ACE measurements. The resulting dataset reveals notable enhancements in C<span><math><msub><mrow></mrow><mrow><mn>2</mn></mrow></msub></math></span>H<span><math><msub><mrow></mrow><mrow><mn>4</mn></mrow></msub></math></span> concentrations over high northern latitudes, particularly between 5.5 and 8.5 km altitude. Distinct seasonal variability is observed, with elevated concentrations during winter and reduced levels in summer. Furthermore, a long-term decreasing trend of −0.224 ppt/year is identified over the 2004–2024 period, indicating a gradual decline in atmospheric C<span><math><msub><mrow></mrow><mrow><mn>2</mn></mrow></msub></math></span>H<span><math><msub><mrow></mrow><mrow><mn>4</mn></mrow></msub></math></span> levels.</div></div>","PeriodicalId":16935,"journal":{"name":"Journal of Quantitative Spectroscopy & Radiative Transfer","volume":"346 ","pages":"Article 109603"},"PeriodicalIF":1.9,"publicationDate":"2025-08-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144841737","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Dingbao Song , Hayato Ohashi , Hiroyuki A. Sakaue , Nobuyuki Nakamura , Daiji Kato
{"title":"Water window soft X-ray spectra of Ce- to Gd-like Bi ions in an electron beam ion trap","authors":"Dingbao Song , Hayato Ohashi , Hiroyuki A. Sakaue , Nobuyuki Nakamura , Daiji Kato","doi":"10.1016/j.jqsrt.2025.109621","DOIUrl":"10.1016/j.jqsrt.2025.109621","url":null,"abstract":"<div><div>The water window emission lines (20–40 Å) of highly charged bismuth (Bi) ions in laser produced plasmas are useful as light sources for biological microscopy of living cells. However, broad distributions of charge states and overlapping of transition arrays in the laser produced high density plasmas make precise line identification difficult. In this paper, we identified strong emission lines in the water window range from Bi ions decomposing to each charge state with a compact electron beam ion trap (CoBIT). To this end, we constructed a collisional radiative model accounting for detail atomic processes of the Bi ions interacting with mono-energetic electron beams. Each transition array observed in the experimental spectra was carefully identified with the present calculations. Distributions of the observed peaks show distinct features depending on charge state abundance in the CoBIT. We found that line emissions mediated via meta-stable excited states play an important role.</div></div>","PeriodicalId":16935,"journal":{"name":"Journal of Quantitative Spectroscopy & Radiative Transfer","volume":"347 ","pages":"Article 109621"},"PeriodicalIF":1.9,"publicationDate":"2025-08-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144887095","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"MARFA: An effective line-by-line tool for calculating molecular absorption in planetary atmospheres","authors":"Mikhail Razumovskiy , Boris Fomin , Denis Astanin","doi":"10.1016/j.jqsrt.2025.109599","DOIUrl":"10.1016/j.jqsrt.2025.109599","url":null,"abstract":"<div><div>We present MARFA (Molecular atmospheric Absorption with Rapid and Flexible Analysis) – an open-source line-by-line tool for calculating absorption coefficients and cross-sections in planetary atmospheres, particularly under conditions of uncertain spectroscopic data and missing continuum functions. With incorporated eleven-grid interpolation technique MARFA shows good performance in computation of far-wing contributions for large line cut-offs. The tool supports flexible parameterization, including line shape functions, wing corrections, user-defined atmospheric profiles, thus, facilitating rapid sensitivity studies for sparse datasets. Spectra are calculated at a high-resolution of about <span><math><mrow><mn>5</mn><mi>⋅</mi><mn>1</mn><msup><mrow><mn>0</mn></mrow><mrow><mo>−</mo><mn>4</mn></mrow></msup></mrow></math></span> cm<sup>−1</sup>, optimized for infrared and visible spectral regions where HITRAN-formatted line data is available, yet adaptable to other datasets with available line parameters. Output is represented either in a form of binary lookup tables files, directly compatible with radiative transfer codes or in a human-readable format for data analysis and distribution. The MARFA tool is provided in two ways: through a web application accessible at <span><span>marfa.app</span><svg><path></path></svg></span> for onboarding and educational usage, and as an open-source code available in a public <span><span>repository</span><svg><path></path></svg></span> for advanced utilization, development and contributions.</div></div>","PeriodicalId":16935,"journal":{"name":"Journal of Quantitative Spectroscopy & Radiative Transfer","volume":"346 ","pages":"Article 109599"},"PeriodicalIF":1.9,"publicationDate":"2025-08-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144879854","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Complete insensitivity to ab initio data — A new perspective on modeling collision-induced absorption of noble gas atoms","authors":"Nikhila A. Chandran, Tijs Karman","doi":"10.1016/j.jqsrt.2025.109597","DOIUrl":"10.1016/j.jqsrt.2025.109597","url":null,"abstract":"<div><div>In this study, we systematically investigate how the accuracy of collision-induced absorption (CIA) spectra of noble gas atom pairs depends on the quality of the <em>ab initio</em> data used. We evaluate quantitatively the impact of different quantum chemical methods and basis sets on spectral features, finding that even the lowest-level calculations in this study are accurate to approximately 10% at room temperature, and better at higher temperatures. This study also reveals a previously unreported double-peak structure for the Ne–He complex, which cannot be described by simple and commonly used single-exponential models for the short-range dipole. Our analysis shows that the range of internuclear distances relevant for CIA spectra varies with temperature, with short-range interactions becoming increasingly important at high temperatures. The long-range van der Waals induced dipoles never contribute. These findings provide new insights into the temperature dependent behavior of CIA spectra and emphasize the importance of accurate modeling of short-range interactions for reliable astronomical modeling.</div></div>","PeriodicalId":16935,"journal":{"name":"Journal of Quantitative Spectroscopy & Radiative Transfer","volume":"346 ","pages":"Article 109597"},"PeriodicalIF":1.9,"publicationDate":"2025-08-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144865155","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"The N2-, O2-, and air-broadened halfwidths and line mixing parameters of the N2O molecule and their temperature dependences","authors":"Q. Ma , C. Boulet","doi":"10.1016/j.jqsrt.2025.109628","DOIUrl":"10.1016/j.jqsrt.2025.109628","url":null,"abstract":"<div><div>Broadening and line mixing parameters for N<sub>2</sub>-, O<sub>2</sub>-, and air-broadened N<sub>2</sub>O transitions in the ν<sub>1</sub> band are investigated over temperatures ranging of 195 to 350 K, using the Refined Robert Bonamy formalism. The theoretically predicted halfwidths show very good agreement with experimental data from the literature, leading to a reliable prediction of the rotational dependence of the temperature exponent <em>N</em>. Since our model yields the full relaxation matrix <em>W</em>, it also enables calculation of Rozenkranz line mixing parameters. Based on the reasonable agreement with available data at room temperature, the temperature dependence of the Rozenkranz parameters has been analyzed, and its physical origin is briefly discussed.</div></div>","PeriodicalId":16935,"journal":{"name":"Journal of Quantitative Spectroscopy & Radiative Transfer","volume":"346 ","pages":"Article 109628"},"PeriodicalIF":1.9,"publicationDate":"2025-08-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144828060","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"First high-resolution spectral study of the fundamental CD2-twisting band of asymmetrically deuterated methanol CHD2OH in the trans- (e0) configuration, using Synchrotron radiation","authors":"Indranath Mukhopadhyay","doi":"10.1016/j.jqsrt.2025.109626","DOIUrl":"10.1016/j.jqsrt.2025.109626","url":null,"abstract":"<div><div>This paper reports the analysis of the high-resolution infrared (IR) spectrum for asymmetrically deuterated methanol, CHD<sub>2</sub>OH (Methanol-D<sub>2</sub>), corresponding to the CD<sub>2</sub> twisting band at the trans- species (e<sub>0</sub>), recorded at low temperature with an excellent signal-to-noise (S/N) ratio of about 500:1 for strong isolated lines. In spite of the complexity and perturbation in the spectra, assignments were possible for the band for K values of 0–10 and with maximum J values of about 30 in most cases. In total, about 1000 spectral lines have been assigned. Localized perturbations have been observed for most of the sub-bands, which have been treated partially with 2 × 2 matrices with interaction parameters. Spectral lines have been analyzed in terms of state-dependent molecular parameters (7 parameters for each sub-state, Kσ). Assignments have been rigorously confirmed using various combination relations, and the combination loop defects suggest the uncertainty of the measured wavenumbers better than ±0.0002 cm<sup>-1</sup>. In addition, about 100 usually forbidden Q-branch transitions were detected for the parallel transitions from gauche-states in the ground state terminating at the trans- states in the twisting mode. The state-dependent molecular parameters obtained can reproduce the observed wavenumbers within experimental uncertainty. An extended atlas of >10,000 assigned transitions with accurate wavenumbers has been prepared and is being submitted in the Appendix as a depository, which should provide laboratory backup for the detection of this critical isotopomer of methanol species in interstellar space and produce optically pumped coherent radiation. It was also possible to assign some forbidden transitions which connect the gauche state (o<sub>1</sub>) in the ground state with the trans state (e<sub>0</sub>) in the twist mode. This study represents the first time the high-resolution analysis of the CD<sub>2</sub>-twisting mode in CHD<sub>2</sub>OH is being performed.</div></div>","PeriodicalId":16935,"journal":{"name":"Journal of Quantitative Spectroscopy & Radiative Transfer","volume":"346 ","pages":"Article 109626"},"PeriodicalIF":1.9,"publicationDate":"2025-08-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144841827","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}