X-Ray Resonance Absorption Lines in the ArgonKSpectrum

1939 ◽  
Vol 56 (4) ◽  
pp. 295-297 ◽  
Author(s):  
Lyman G. Parratt
Keyword(s):  
Resonance Absorption ◽  
Absorption Lines ◽  
X Ray

scholarly journals HAVE WE OBSERVED THE SKIN VIBRATION OF REALISTIC STRANGE STARS (ReSS)?

2003 ◽  
Vol 18 (09) ◽  
pp. 661-667 ◽  
Author(s):  
MONIKA SINHA ◽  
JISHNU DEY ◽  
MIRA DEY ◽  
SUBHARTHI RAY ◽  
SIDDHARTHA BHOWMICK
Keyword(s):  
Neutron Stars ◽  
Resonance Absorption ◽  
Absorption Lines ◽  
Stellar Objects ◽  
Strange Stars ◽  
X Ray

Skin vibration of ReSS and consequent resonance absorption can account for the absorption lines in the spectrum of X-ray emission from many compact stellar objects and in particular, the stars J1210-5226 and RXJ1856-3754. Observations of the X-ray spectrum of these stars is difficult to explain, if they are neutron stars.

Resonance Broadening and Oscillator strength of the Mercury Absorption Line 1850 Å

1975 ◽  
Vol 30 (4) ◽  
pp. 445-450 ◽  
Author(s):  
D. Gebhard ◽  
W. Behmenburg
Keyword(s):  
Absorption Line ◽  
Oscillator Strength ◽  
Resonance Absorption ◽  
New Method ◽  
Absorption Lines ◽  
Resonance Transition ◽  
Resonance Transitions ◽  
Resonance Broadening

Abstract A new method for the determination of f-values of resonance transitions from wing-measurements of selfbroadened resonance absorption lines is described. The method is applied to the mercury resonance transition 61 S0→61P1, λ 1850 Å. The resulting f-value of 1.08±0.05 agrees well with those obtained from other methods.

scholarly journals Interaction of high intensity picosecond laser pulses with large preformed plasmas

1998 ◽  
Vol 16 (1) ◽  
pp. 101-113 ◽  
Author(s):  
D. Riley ◽  
R.A. Smith ◽  
A. J. MacKinnon ◽  
O. Willi ◽  
M.H.R. Hutchinson
Keyword(s):  
High Intensity ◽  
Laser Energy ◽  
Incident Light ◽  
Picosecond Laser ◽  
Laser Pulses ◽  
Resonance Absorption ◽  
Emission Data ◽  
X Ray ◽  
Spatially Resolved ◽  
Stimulated Brillouin

The interaction of short (1−2 ps) laser pulses with solid targets at irradiances of over 1016 Wcm−2, in the presence of a substantial prepulse has been investigated. High absorption of laser energy is found even at high angles of incidence, with evidence for a resonance absorption peak being found for S, P, and circular polarizations. It is considered that this may be a result of refraction and beam filamentation, which causes loss of distinct polarization. Measurements of hard X-ray emission (∼ 100 keV) confirm a resonance absorption type peak at 45−50°, again for all three cases. Typically, 5−15% of the incident light is back-reflected by stimulated Brillouin scatter, with spatially resolved spectra showing evidence of beam hot-spots at high intensity. The possibility that filamentation and refraction of the beam can explain the lack of polarization dependence in the absorption and hard X-ray emission data is discussed.

The magnetic field of an isolated neutron star from X-ray cyclotron absorption lines

Nature ◽  
2003 ◽  
Vol 423 (6941) ◽  
pp. 725-727 ◽  
Author(s):  
G. F. Bignami ◽  
P. A. Caraveo ◽  
A. De Luca ◽  
S. Mereghetti
Keyword(s):  
Magnetic Field ◽  
Neutron Star ◽  
Absorption Lines ◽  
X Ray ◽  
Cyclotron Absorption ◽  
The Magnetic Field

scholarly journals Nondetection of Gravitationally Redshifted Absorption Lines in the X-Ray Burst Spectra of GS 1826-24

2007 ◽  
Vol 670 (1) ◽  
pp. L17-L20 ◽  
Author(s):  
Albert K. H. Kong ◽  
Jon M. Miller ◽  
Mariano Méndez ◽  
Jean Cottam ◽  
Walter H. G. Lewin ◽  
...  
Keyword(s):  
Absorption Lines ◽  
X Ray
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