Photoionized Plasmas in X-Ray Binary Pulsars: ASCA Observations

1998 ◽  
pp. 101-104
Author(s):  
Fumiaki Nagase
Keyword(s):  
X Ray ◽  
Binary Pulsars ◽  
Photoionized Plasmas

scholarly journals Photoionized Plasmas in X-Ray Binary Pulsars: ASCA Observations

1998 ◽  
Vol 188 ◽  
pp. 101-104
Author(s):  
Fumiaki Nagase
Keyword(s):  
Neutron Star ◽  
Stellar Wind ◽  
Stellar Winds ◽  
X Rays ◽  
Early Type ◽  
X Ray ◽  
Binary Pulsars ◽  
Photoionized Plasmas ◽  
Structure Of Matter

Massive X-ray binary pulsars have often evolved early-type companion stars which emanate strong stellar winds. X-rays emitted from the accreting neutron star irradiate and ionize the surrounding stellar wind, thus forming a photoionized sphere surrounding the neutron star. The photoionization structure of matter surrounding the neutron star was calculated by Hatchett and McCray (1977) and McCray et al. (1984), for Cen X-3 and Vela X-1 respectively.

scholarly journals X-ray He-like ion diagnostics: New computations for photoionized plasmas

2004 ◽  
Vol 426 (3) ◽  
pp. 767-776 ◽  
Author(s):  
O. Godet ◽  
S. Collin ◽  
A.-M. Dumont
Keyword(s):  
X Ray ◽  
Photoionized Plasmas

Very high energy gamma rays from x-ray binary pulsars

1990 ◽  
Vol 16 (12) ◽  
pp. 1773-1803 ◽  
Author(s):  
P M Chadwick ◽  
T J L McComb ◽  
K E Turver
Keyword(s):  
Gamma Rays ◽  
High Energy ◽  
X Ray ◽  
Binary Pulsars ◽  
High Energy Gamma ◽  
Very High Energy ◽  
Energy Gamma ◽  
Very High

scholarly journals Production of photoionized plasmas in the laboratory with x-ray line radiation

2018 ◽  
Vol 97 (6) ◽  
Author(s):  
S. White ◽  
R. Irwin ◽  
J. R. Warwick ◽  
G. F. Gribakin ◽  
G. Sarri ◽  
...  
Keyword(s):  
Line Radiation ◽  
X Ray ◽  
Photoionized Plasmas

scholarly journals Generation of photoionized plasmas in the laboratory: Analogues to astrophysical sources

2019 ◽  
Vol 15 (S350) ◽  
pp. 321-325
Author(s):  
S. White ◽  
R. Irwin ◽  
R. Warwick ◽  
G. Sarri ◽  
G. F. Gribakin ◽  
...  
Keyword(s):  
Experimental Approach ◽  
Argon Plasma ◽  
Time Dependent ◽  
X Ray ◽  
Photoionized Plasma ◽  
Photoionized Plasmas ◽  
Laboratory Analogue ◽  
Bright Source ◽  
Proof Of Principle ◽  
Gas Pressures

AbstractImplementation of a novel experimental approach using a bright source of narrowband x-ray emission has enabled the production of a photoionized argon plasma of relevance to astrophysical modelling codes such as Cloudy. We present results showing that the photoionization parameter ζ = 4πF/ne generated using the VULCAN laser was ≈ 50 erg cm s−1, higher than those obtained previously with more powerful facilities. Comparison of our argon emission-line spectra in the 4.15 - 4.25 Å range at varying initial gas pressures with predictions from the Cloudy code and a simple time-dependent code are also presented. Finally we briefly discuss how this proof-of-principle experiment may be scaled to larger facilities such as ORION to produce the closest laboratory analogue to a photoionized plasma.

Photoionized plasmas induced in neon with extreme ultraviolet and soft X-ray pulses produced using low and high energy laser systems

2015 ◽  
Vol 22 (4) ◽  
pp. 043302 ◽  
Author(s):  
A. Bartnik ◽  
P. Wachulak ◽  
T. Fok ◽  
Ł. Węgrzyński ◽  
H. Fiedorowicz ◽  
...  
Keyword(s):  
Extreme Ultraviolet ◽  
High Energy ◽  
X Ray ◽  
Laser Systems ◽  
Energy Laser ◽  
High Energy Laser ◽  
Photoionized Plasmas
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