scholarly journals A Multiwavelength Study of the High‐Field Magnetic White Dwarf EUVE J0317−85.5 (=RE J0317−853)

2003 ◽  
Vol 593 (2) ◽  
pp. 1040-1048 ◽  
Author(s):  
Stephane Vennes ◽  
G. D. Schmidt ◽  
L. Ferrario ◽  
D. J. Christian ◽  
D. T. Wickramasinghe ◽  
...  
Keyword(s):  
1997 ◽  
Vol 292 (2) ◽  
pp. 205-217 ◽  
Author(s):  
Lilia Ferrario ◽  
S. Vennes ◽  
D. T. Wickramasinghe ◽  
J. A. Bailey ◽  
D. J. Christian
Keyword(s):  

2001 ◽  
Vol 555 (1) ◽  
pp. 380-392 ◽  
Author(s):  
Boris T. Gansicke ◽  
Gary D. Schmidt ◽  
Stefan Jordan ◽  
Paula Szkody

1997 ◽  
Vol 163 ◽  
pp. 409-412
Author(s):  
Paula Szkody ◽  
Gary D. Schmidt ◽  
Paul S. Smith ◽  
Andrew Silber ◽  
D.W. Hoard ◽  
...  

AbstractWe present results from IUE and optical spectra, optical photometry and circular polarimetry during high and low states of the highly luminous soft X-ray cataclysmic variable AR UMa that identifies the primary in this system as a white dwarf with a magnetic field of 230 MG. The high magnetic field likely threads accretion blobs all the way from the secondary to below the surface of the white dwarf, resulting in a lack of polarised cyclotron emission and an extreme soft-X-ray luminosity during the high state.


1989 ◽  
Vol 114 ◽  
pp. 333-336 ◽  
Author(s):  
Stefan Jordan

AbstractA new program for the calculation of theoretical spectra and wavelength dependend degrees of the linear and circular polarization for magnetic white dwarfs with hydrogen atmospheres has been developed. The main improvement compared to previous models is a more realistic treatment of the bound-free absorption and of the magnetooptical parameters arising from free electrons in the continuum. For the newly discovered magnetic white dwarf HS 1254+3430 a polar field strength of 18 MG was found. Calculations for the high field object Grw +70°8247 confirms the results of Wickramasinghe and Ferrario (320 MG) but gave a better fit to the spectrum at wavelengths larger than 6200 Å.


1988 ◽  
Vol 327 ◽  
pp. 222 ◽  
Author(s):  
D. T. Wickramasinghe ◽  
Lilia Ferrario
Keyword(s):  

2002 ◽  
Vol 381 (2) ◽  
pp. 487-490 ◽  
Author(s):  
K. Beuermann ◽  
K. Reinsch
Keyword(s):  

Author(s):  
T. F. Kelly ◽  
P. J. Lee ◽  
E. E. Hellstrom ◽  
D. C. Larbalestier

Recently there has been much excitement over a new class of high Tc (>30 K) ceramic superconductors of the form A1-xBxCuO4-x, where A is a rare earth and B is from Group II. Unfortunately these materials have only been able to support small transport current densities 1-10 A/cm2. It is very desirable to increase these values by 2 to 3 orders of magnitude for useful high field applications. The reason for these small transport currents is as yet unknown. Evidence has, however, been presented for superconducting clusters on a 50-100 nm scale and on a 1-3 μm scale. We therefore planned a detailed TEM and STEM microanalysis study in order to see whether any evidence for the clusters could be seen.A La1.8Sr0.2Cu04 pellet was cut into 1 mm thick slices from which 3 mm discs were cut. The discs were subsequently mechanically ground to 100 μm total thickness and dimpled to 20 μm thickness at the center.


1998 ◽  
Vol 184-185 (1-2) ◽  
pp. 339-342 ◽  
Author(s):  
L Parthier
Keyword(s):  

Nature ◽  
2005 ◽  
Author(s):  
Roxanne Khamsi
Keyword(s):  

1971 ◽  
Vol 32 (C1) ◽  
pp. C1-943-C1-945
Author(s):  
M. W. van TOL ◽  
M. MATSUURA ◽  
N. J. POULIS
Keyword(s):  

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