Emission line broadening in combustion products. Static and dynamic studies of gas mixtures

2000 ◽  
Vol 10 (PR11) ◽  
pp. Pr11-197-Pr11-204 ◽  
Author(s):  
P. Chelin ◽  
V. Pina ◽  
P. Hervé
Keyword(s):  
Emission Line ◽  
Combustion Products ◽  
Gas Mixtures ◽  
Line Broadening ◽  
Dynamic Studies

scholarly journals Homogeneous Emission Line Broadening in the Organo Lead Halide Perovskite CH3NH3PbI3–xClx

2014 ◽  
Vol 5 (8) ◽  
pp. 1300-1306 ◽  
Author(s):  
Christian Wehrenfennig ◽  
Mingzhen Liu ◽  
Henry J. Snaith ◽  
Michael B. Johnston ◽  
Laura M. Herz
Keyword(s):  
Emission Line ◽  
Line Broadening ◽  
Halide Perovskite ◽  
Lead Halide

scholarly journals Determining Rotation Rates from Light Curves: RW Mon and RW Tau

1989 ◽  
Vol 107 ◽  
pp. 373-373
Author(s):  
W. Van Hamme
Keyword(s):  
Light Curve ◽  
Emission Line ◽  
Rotation Rate ◽  
Firm Value ◽  
Primary Component ◽  
Light Curves ◽  
Line Broadening ◽  
Rapid Rotation ◽  
Rotation Rates ◽  
Algol System

AbstractWe present light curve solutions for the non-synchronously rotating Algols RW Mon and RW Tau, and we illustrate how rotation rates are determined from light curves. We find RW Mon’s primary component to spin at about 5 times the synchronous rate, which confirms the indication of fast rotation from reported emission line activity. RW Tau turns out to be only a mildly rapidly rotating Algol system, and our light curve solutions do not yield any firm value for the rotation rate of the primary component. It is suggested that continued efforts should be made to do good quality line broadening studies in order to find rotation rates for systems with only modest degrees of rapid rotation, and in order to further test photometric rotation rates against those of line broadening studies.

scholarly journals Profile of the \(^{12}\)CO(3-2) Emission Line Detected From the Debris Disc of 49 Ceti

2017 ◽  
Vol 27 (2) ◽  
pp. 107
Author(s):  
Pham Thi Tuyet Nhung ◽  
Pham Tuan Anh ◽  
Do Thi Hoai ◽  
Pham Ngoc Diep ◽  
Nguyen Thi Phuong ◽  
...  
Keyword(s):  
Emission Line ◽  
Line Profile ◽  
Line Broadening ◽  
Upper Limit ◽  
Violent Events

The CO(3-2) emission of the debris disc of the young A star 49 Ceti, known to be particularly gas rich, has been recently detected and measured using the ALMA interferometer. We study the observed line profile and comment on each of the possible contributions to its width. Line broadening is found to be dominated by Keplerian shear and an upper limit of 0.8 kms FWHM is placed on other possible contributions,including temperature, confirming the quietness of the gas contained in the disc and disfavouring models that would require relatively violent events to generate secondary gas.

scholarly journals Shape-Dependent Stark Shift and Emission-Line Broadening of Quantum Dots and Rings

2020 ◽  
Vol 124 (36) ◽  
pp. 19809-19816
Author(s):  
Christian Heyn ◽  
Leonardo Ranasinghe ◽  
Michael Zocher ◽  
Wolfgang Hansen
Keyword(s):  
Quantum Dots ◽  
Emission Line ◽  
Stark Shift ◽  
Line Broadening

Radio-loud narrow-line Seyfert 1 galaxies with high-velocity outflows

2014 ◽  
Vol 10 (S312) ◽  
pp. 63-65 ◽  
Author(s):  
S. Komossa ◽  
D. Xu ◽  
J. A. Zensus
Keyword(s):  
Emission Line ◽  
Ionization Potential ◽  
High Velocity ◽  
Large Scale ◽  
Optical Emission ◽  
Strong Line ◽  
Narrow Line ◽  
Line Broadening ◽  
Central Engine ◽  
Radial Outflow

AbstractWe have studied four radio-loud Narrow-line Seyfert 1 (NLS1) galaxies with extreme optical emission-line shifts, indicating radial outflow velocities of up 2450 km s−1. The shifts are accompanied by strong line broadening, up to 2270 km s−1 in [NeV]. A significant ionization stratification (higher line shift at higher ionization potential) of most ions implies that we see a large-scale wind rather than single, localized jet-cloud interactions. The observations are consistent with a scenario, where the signatures of outflows are maximized because of a pole-on view into the central engine of these radio-loud NLS1 galaxies.

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