Results 11 to 20 of about 1,312,433 (296)
Superfast Line Spectral Estimation [PDF]
, 2018 A number of recent works have proposed to solve the line spectral estimation problem by applying off-the-grid extensions of sparse estimation techniques.
Fleury, Bernard Henri +2 more
core +2 more sources
Subnanosecond spectral diffusion measurement using photon correlation [PDF]
, 2010 Spectral diffusion is a result of random spectral jumps of a narrow line as a result of a fluctuating environment. It is an important issue in spectroscopy, because the observed spectral broadening prevents access to the intrinsic line properties ...
A Berthelot +28 more
core +4 more sources
A new model for the structure of the DACs and SACs regions in the Oe and Be stellar atmospheres [PDF]
, 2007 In this paper we present a new mathematical model for the density regions where a specific spectral line and its SACs/DACs are created in the Oe and Be stellar atmospheres.
Antoniou, A. +6 more
core +1 more source
Precise measurements of the wavelength in KrCl laser spectral region (222 nm)
Semiconductor Physics, Quantum Electronics & Optoelectronics, 2016 The technique for precise measurements of wavelengths in the range around 222 nm (45030 cm–1) has been presented. The reciprocal linear dispersion of the spectrometer was 0.529 Å/mm.
N.G. Zubrilin
doaj +1 more source
Rapid Scanning of the Spectral Line Profile With [PDF]
Kirkuk Journal of Science, 2011 The problem of rapid scanning of spectral line profiles with help of Fabry-Perot Interferometer, and to investigate the physical parameters of these profiles is discussed.
Saalaar Z. Mohamed
doaj +1 more source
A search for 21 cm HI absorption in AT20G compact radio galaxies [PDF]
, 2012 We present results from a search for 21 cm associated HI absorption in a sample of 29 radio sources selected from the Australia Telescope 20 GHz survey. Observations were conducted using the Australia Telescope Compact Array Broadband Backend, with which
Allison, J. R. +9 more
core +2 more sources
Spectral Line Shapes of He I Line 3889 Å
Atoms, 2014 Spectral line shapes of neutral helium 3889 Å(23S–33P) transition line are calculated by using several theoretical methods. The electronic contribution to the line broadening is calculated from quantum statistical many-particle theory by using ...
Banaz Omar +8 more
doaj +1 more source
Spectral Line Shapes in Plasmas II
Atoms, 2019 The Spectral Line Shapes in Plasmas (SLSP) code comparison workshop series [...]
Evgeny Stambulchik +3 more
doaj +1 more source
A representative sample of Be stars III: H band spectroscopy [PDF]
, 1999 We present H band (1.53 - 1.69 micron) spectra of 57 isolated Be stars of spectral types O9-B9 and luminosity classes III,IV & V. The HI Brackett (n-4) series is seen in emission from Br 11-18, and FeII emission is also apparent for a subset of those ...
Clark +19 more
core +5 more sources
The Spectral Correlation Function -- A New Tool for Analyzing Spectral-Line Maps [PDF]
, 1999 The "spectral correlation function" analysis we introduce in this paper is a new tool for analyzing spectral-line data cubes. Our initial tests, carried out on a suite of observed and simulated data cubes, indicate that the spectral correlation function [
Goodman, Alyssa A. +3 more
core +4 more sources