Calculation of molecular line intensity in stellar atmospheres
Sign Up to like & getrecommendations! Published in 2018 at "Publications of the Astronomical Society of Australia"
DOI: 10.1017/pasa.2018.33
Abstract: Abstract Molecular line intensity calculations are not a straightforward task. We present a description of the basics for including molecular lines in synthetic spectra and of the input data needed. We aim both at describing… read more here.
Keywords: molecular line; calculation molecular; intensity stellar; line intensity ... See more keywords
Machine learning-aided line intensity ratio technique applied to deuterium plasmas
Sign Up to like & getrecommendations! Published in 2023 at "AIP Advances"
DOI: 10.1063/5.0147463
Abstract: It has been demonstrated that the electron density, ne, and temperature, Te, are successfully evaluated from He I line intensity ratios coupled with machine learning (ML). In this paper, the ML-aided line intensity ratio technique… read more here.
Keywords: intensity; line intensity; technique; intensity ratio ... See more keywords
He II line intensity measurements in the JET tokamak
Sign Up to like & getrecommendations! Published in 2024 at "Plasma Physics and Controlled Fusion"
DOI: 10.1088/1361-6587/ad75b9
Abstract: An understanding of the behaviour of the D or He fuel used in tokamak discharges is essential in analyses such as modelling edge and divertor transport and the erosion of the vessel walls. However, poor… read more here.
Keywords: jet; line intensity; jet tokamak; line intensities ... See more keywords
On the Ar I 419.8 nm/751.5 nm (3p5/2p5) line intensity ratio for electric field measurement in dielectric barrier discharge in argon at atmospheric pressure
Sign Up to like & getrecommendations! Published in 2025 at "Plasma Sources Science and Technology"
DOI: 10.1088/1361-6595/adaa9b
Abstract: Ar I 419.8 nm/751.5 nm line intensity ratio is suggested as a measure of the electric field in atmospheric pressure dielectric barrier discharges (DBDs) in argon. Using the electron distribution function calculated from the Boltzmann equation, electron impact… read more here.
Keywords: electric field; line; intensity ratio; line intensity ... See more keywords
Semi-empirical approach to [CII] line intensity mapping
Sign Up to like & getrecommendations! Published in 2024 at "Journal of Cosmology and Astroparticle Physics"
DOI: 10.1088/1475-7516/2025/01/010
Abstract: The line intensity mapping technique involves measuring the cumulative emission from specific spectral lines emitted by galaxies and intergalactic gas. This method provides a way to study the matter distribution and the evolution of large-scale… read more here.
Keywords: intensity mapping; evolution; intensity; line intensity ... See more keywords
The power spectrum of galaxies from large to small scales: a line-intensity mapping perspective
Sign Up to like & getrecommendations! Published in 2024 at "Monthly Notices of the Royal Astronomical Society"
DOI: 10.1093/mnras/staf647
Abstract: We present a model for the power spectrum of the density field of galaxies weighted by their star formation rate. This weighting is relevant in line-intensity mapping (lim) when the observed line luminosity is strongly… read more here.
Keywords: line intensity; power; power spectrum;
User’s guide to extracting cosmological information from line-intensity maps
Sign Up to like & getrecommendations! Published in 2019 at "Physical Review D"
DOI: 10.1103/physrevd.100.123522
Abstract: Line-intensity mapping (LIM) provides a promising way to probe cosmology, reionization and galaxy evolution. However, its sensitivity to cosmology and astrophysics at the same time is also a nuisance. Here we develop a comprehensive framework… read more here.
Keywords: cosmology; user guide; astrophysics; line intensity ... See more keywords
Toward a multitracer neutrino mass measurement with line-intensity mapping
Sign Up to like & getrecommendations! Published in 2024 at "Physical Review D"
DOI: 10.1103/physrevd.111.063512
Abstract: Accurately determining neutrino masses is a main objective of contemporary cosmology. Since massive neutrinos affect structure formation and evolution, probes of large scale structure are sensitive to the sum of their masses. In this work,… read more here.
Keywords: intensity mapping; neutrino; sigma; line intensity ... See more keywords
Cosmic Expansion History from Line-Intensity Mapping.
Sign Up to like & getrecommendations! Published in 2019 at "Physical review letters"
DOI: 10.1103/physrevlett.123.251301
Abstract: Line-intensity mapping (LIM) of emission from star-forming galaxies can be used to measure the baryon acoustic oscillation (BAO) scale as far back as the epoch of reionization. This provides a standard cosmic ruler to constrain… read more here.
Keywords: expansion history; intensity mapping; history; expansion ... See more keywords
Unprecedented accuracy in molecular line-intensity ratios from frequency-based measurements
Sign Up to like & getrecommendations! Published in 2025 at "Science Advances"
DOI: 10.1126/sciadv.adz6560
Abstract: Accurate determination of molecular transition intensities is vital to quantum chemistry and metrology, yet even simple diatomic molecules have historically been limited to 0.1% accuracy. Here, we show that frequency-domain measurements of relative intensity ratios… read more here.
Keywords: intensity; metrology; line intensity; accuracy ... See more keywords
X-ray Line-Intensity Ratios in Neon-like Xenon: Significantly Reducing the Discrepancy between Measurements and Simulations
Sign Up to like & getrecommendations! Published in 2024 at "Applied Sciences"
DOI: 10.3390/app14114381
Abstract: The X-ray spectra of L-shell transitions in Neon-like Xenon ion (Xe44+) have been precisely measured at the Shanghai Electron-Beam Ion Trap using a high-resolution crystal spectrometer. Focusing on the line-intensity ratio of the 3F {2p6-(2p51/23s1/2)J=1}… read more here.
Keywords: line; like xenon; neon like; line intensity ... See more keywords