scholarly journals Rocket-borne measurements of electron temperature and density with the Electron Retarding Potential Analyzer instrument

2016 ◽  
Vol 121 (7) ◽  
pp. 6774-6782 ◽  
Author(s):  
I. J. Cohen ◽  
M. Widholm ◽  
M. R. Lessard ◽  
P. Riley ◽  
J. Heavisides ◽  
...  
Keyword(s):  
Electron Temperature ◽  
Retarding Potential Analyzer

scholarly journals The SAMI Galaxy Survey: reconciling strong emission line metallicity diagnostics using metallicity gradients

2021 ◽  
Vol 502 (3) ◽  
pp. 3357-3373
Author(s):  
Henry Poetrodjojo ◽  
Brent Groves ◽  
Lisa J Kewley ◽  
Sarah M Sweet ◽  
Sebastian F Sanchez ◽  
...  
Keyword(s):  
Emission Line ◽  
Electron Temperature ◽  
Gas Phase ◽  
Mass Range ◽  
Accurate Method ◽  
Emission Lines ◽  
Mass Relation ◽  
Strong Emission ◽  
Data Release ◽  
Accurate Comparison

ABSTRACT We measure the gas-phase metallicity gradients of 248 galaxies selected from Data Release 2 of the SAMI Galaxy Survey. We demonstrate that there are large systematic discrepancies between the metallicity gradients derived using common strong emission line metallicity diagnostics. We determine which pairs of diagnostics have Spearman’s rank coefficients greater than 0.6 and provide linear conversions to allow the accurate comparison of metallicity gradients derived using different strong emission line diagnostics. For galaxies within the mass range 8.5 < log (M/M⊙) < 11.0, we find discrepancies of up to 0.11 dex/Re between seven popular diagnostics in the metallicity gradient–mass relation. We find a suggestion of a break in the metallicity gradient–mass relation, where the slope shifts from negative to positive, occurs between 9.5 < log (M/M⊙) < 10.5 for the seven chosen diagnostics. Applying our conversions to the metallicity gradient–mass relation, we reduce the maximum dispersion from 0.11 dex/Re to 0.02 dex/Re. These conversions provide the most accurate method of converting metallicity gradients when key emission lines are unavailable. We find that diagnostics that share common sets of emission line ratios agree best, and that diagnostics calibrated through the electron temperature provide more consistent results compared to those calibrated through photoionization models.

scholarly journals Warm dense matter simulation via electron temperature dependent deep potential molecular dynamics

2020 ◽  
Vol 27 (12) ◽  
pp. 122704
Author(s):  
Yuzhi Zhang ◽  
Chang Gao ◽  
Qianrui Liu ◽  
Linfeng Zhang ◽  
Han Wang ◽  
...  
Keyword(s):  
Molecular Dynamics ◽  
Electron Temperature ◽  
Dense Matter ◽  
Temperature Dependent ◽  
Warm Dense Matter

Combined influence of axial electron temperature and exponential plasma density ramp on the self-focusing of a chirped laser in plasma

2020 ◽  
Vol 75 (7) ◽  
pp. 671-675
Author(s):  
Niti Kant ◽  
Vishal Thakur
Keyword(s):  
Electron Temperature ◽  
Pulse Laser ◽  
Plasma Density ◽  
Beam Width ◽  
Spot Size ◽  
Higher Order ◽  
The Self ◽  
Chirped Pulse ◽  
Self Focusing ◽  
Paraxial Ray

AbstractAn analysis of the self-focusing of highly intense chirped pulse laser under exponential plasma density ramp with higher order value of axial electron temperature has been done. Beam width parameter is derived by using paraxial ray approximation and then solved numerically. It is seen that self-focusing of chirped pulse laser is intensely affected by the higher order values of axial electron temperature. Further, influence of exponential plasma density ramp is studied and it is concluded that self-focusing of laser enhances and occurs earlier. On the other hand defocusing of beam reduces to the great extent. It is noticed that the laser spot size reduces significantly under joint influence of the density ramp and the axial electron temperature. Present analysis may be useful for the analysis of quantum dots, the laser induced fusion and etc.

scholarly journals Quantitative Ultrafast Electron‐Temperature Dynamics in Photo‐Excited Au Nanoparticles

Small ◽  
2021 ◽  
pp. 2100050
Author(s):  
Maria Sygletou ◽  
Stefania Benedetti ◽  
Marzia Ferrera ◽  
Gian Marco Pierantozzi ◽  
Riccardo Cucini ◽  
...  
Keyword(s):  
Electron Temperature ◽  
Au Nanoparticles ◽  
Temperature Dynamics

Electron temperature measurements with heavy ion beam probes

1985 ◽  
Vol 56 (5) ◽  
pp. 1044-1046 ◽  
Author(s):  
P. M. Schoch ◽  
J. R. Goyer ◽  
L. Solensten ◽  
J. D. Michael ◽  
E. Saravia ◽  
...  
Keyword(s):  
Electron Temperature ◽  
Ion Beam ◽  
Heavy Ion ◽  
Temperature Measurements ◽  
Heavy Ion Beam
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