scholarly journals Collisional Ionization Equilibrium for Optically Thin Plasmas. I. Updated Recombination Rate Coefficients for Bare through Sodium‐like Ions

2006 ◽  
Vol 167 (2) ◽  
pp. 343-356 ◽  
Author(s):  
P. Bryans ◽  
N. R. Badnell ◽  
T. W. Gorczyca ◽  
J. M. Laming ◽  
W. Mitthumsiri ◽  
...  
Keyword(s):  
Recombination Rate ◽  
Rate Coefficients ◽  
Ionization Equilibrium ◽  
Collisional Ionization

On Ionization Equilibrium of Helium

1976 ◽  
Vol 31 (6) ◽  
pp. 565-568
Author(s):  
Udit Narain ◽  
N. K. Jain ◽  
Suresh Chandra
Keyword(s):  
Recombination Rate ◽  
Dielectronic Recombination ◽  
Rate Coefficients ◽  
Ionization Equilibrium

The ionization equilibrium of helium is investigated using new ionization and modified dielectronic recombination rate coefficients. The results are discussed in the light of available data

Dielectronic recombination rate coefficients for the CoI isoelectronic sequence

2009 ◽  
Vol 42 (10) ◽  
pp. 105203 ◽  
Author(s):  
Fan-Chang Meng ◽  
Li Zhou ◽  
Min Huang ◽  
Chong-Yang Chen ◽  
Yan-Sen Wang ◽  
...  
Keyword(s):  
Recombination Rate ◽  
Dielectronic Recombination ◽  
Rate Coefficients ◽  
Isoelectronic Sequence

scholarly journals ISM simulations: an overview of models

2012 ◽  
Vol 10 (H16) ◽  
pp. 606-608 ◽  
Author(s):  
M. A. de Avillez ◽  
D. Breitschwerdt ◽  
A. Asgekar ◽  
E. Spitoni
Keyword(s):  
Dynamical System ◽  
Interstellar Medium ◽  
Dynamical Evolution ◽  
Dynamic Processes ◽  
Ionization Equilibrium ◽  
Collisional Ionization

AbstractUntil recently the dynamical evolution of the interstellar medium (ISM) was simulated using collisional ionization equilibrium (CIE) conditions. However, the ISM is a dynamical system, in which the plasma is naturally driven out of equilibrium due to atomic and dynamic processes operating on different timescales. A step forward in the field comprises a multi-fluid approach taking into account the joint thermal and dynamical evolutions of the ISM gas.

scholarly journals XMM-Newton observations ofζOrionis (O9.7 Ib): a collisional ionization equilibrium model

2007 ◽  
Vol 478 (2) ◽  
pp. 513-520 ◽  
Author(s):  
A. J. J. Raassen ◽  
K. A. van der Hucht ◽  
N. A. Miller ◽  
J. P. Cassinelli
Keyword(s):  
Equilibrium Model ◽  
Ionization Equilibrium ◽  
Collisional Ionization

scholarly journals Ionization Equilibrium for Ions of Na, Al, P, Cl, A, K, Ca, Cr and Mn

1972 ◽  
Vol 14 ◽  
pp. 586-587 ◽  
Author(s):  
M. Landini ◽  
B.C. Monsignori Fossi
Keyword(s):  
Solar Atmosphere ◽  
Radiative Recombination ◽  
Dielectronic Recombination ◽  
Ionization Equilibrium ◽  
Collisional Ionization ◽  
Ionization Balance ◽  
Equilibrium Calculations

Ionization equilibrium calculations, which have a number of astrophysical applications, have been computed by Jordan for the ions of C, N, O, Ne, Mg, Si, S, Fe, and Ni.The aim of this paper is to extend the evaluation to other elements relevant to the investigation of the solar atmosphere. Ions of Na, Al, P, Cl, A, K, Ca, Cr, and Mn have been considered and the ionization balance has been computed for temperature from 104 to 107 K.The computation is performed including collisional ionization, autoionization, radiative recombination and dielectronic recombination.

scholarly journals Experimental N V and Ne VIII low-temperature dielectronic recombination rate coefficients

2005 ◽  
Vol 437 (3) ◽  
pp. 1151-1157 ◽  
Author(s):  
S. Böhm ◽  
A. Müller ◽  
S. Schippers ◽  
W. Shi ◽  
M. Fogle ◽  
...  
Keyword(s):  
Low Temperature ◽  
Recombination Rate ◽  
Dielectronic Recombination ◽  
Rate Coefficients

scholarly journals Evolution and State of the Local ISM

1996 ◽  
Vol 171 ◽  
pp. 442-442
Author(s):  
T. Schmutzler ◽  
D. Breitschwerdt
Keyword(s):  
Basic Feature ◽  
Emission Lines ◽  
Continuum Emission ◽  
Ionization Equilibrium ◽  
X Ray ◽  
Self Consistent ◽  
X Ray Background ◽  
Collisional Ionization ◽  
Consistent Approach ◽  
The Continuum

The most puzzling observations concerning the LISM (distance < 100 pc) can be explained by a fast adiabatically cooled gas in the cavity of an old superbubble. The ultrasoft X-ray background and contributions to the C- and M-bands are due to the continuum emission of delayed recombination [1]. In contrast to collisional ionization equilibrium (CIE) models, but consistent with recent observations [2], our model predicts a lack of emission lines and a low emissivity in the EUV range. In the figure below we compare the emissivities resulting from CIE at T = 106 K and those from our model at T = 4.2 × 104 K. The basic feature of our model is a thermally self-consistent approach of the time-dependent evolution.

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