The optical and near-infrared continuum polarization of five magnetic white dwarf stars - new observations and considerations regarding its origin
Journal Article
·
· Astrophysical Journal; (USA)
- Carnegie Institution of Washington, Observatories, Pasadena, CA (USA) Steward Observatory, Tucson, AZ (USA)
Linear and circular broadband continuum polarization measurements throughout the 0.35-1.65-micron spectral region were obtained for GrW +70 deg 8247, GD 229, G240-72, G227-35, and LP 790-29. The continuum is found to be characterized by significant Coulomb modification of the Landau-type autoionization thresholds. The spectral characteristics of continuum polarization originating from a centered dipole field distribution are predicted. The magnetobremsstrahlung model can describe several characteristics of the polarization of Grw + 70 deg 8247, suggesting that plasma eigenmodes draw the resultant continuum polarization away from a photoionization edge. 86 refs.
- OSTI ID:
- 5096355
- Journal Information:
- Astrophysical Journal; (USA), Journal Name: Astrophysical Journal; (USA) Vol. 345; ISSN ASJOA; ISSN 0004-637X
- Country of Publication:
- United States
- Language:
- English
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Tue May 15 00:00:00 EDT 1973
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·
OSTI ID:4433635
Development of a near-infrared polarimeter and its application to the continuum polarization of magnetic white dwarfs
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·
Wed Dec 31 23:00:00 EST 1986
·
OSTI ID:6452227
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· J. Sov. Laser Res.; (United States)
·
OSTI ID:5074879
Related Subjects
640102* -- Astrophysics & Cosmology-- Stars & Quasi-Stellar
Radio & X-Ray Sources
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
BREMSSTRAHLUNG
CYCLOTRON RADIATION
DWARF STARS
ELECTROMAGNETIC RADIATION
INFRARED RADIATION
IONIZATION
MAGNETIC FLUX
MAGNETIC STARS
NEAR INFRARED RADIATION
PHOTOIONIZATION
POLARIZATION
RADIATIONS
STARS
STELLAR RADIATION
VISIBLE RADIATION
WHITE DWARF STARS
Radio & X-Ray Sources
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
BREMSSTRAHLUNG
CYCLOTRON RADIATION
DWARF STARS
ELECTROMAGNETIC RADIATION
INFRARED RADIATION
IONIZATION
MAGNETIC FLUX
MAGNETIC STARS
NEAR INFRARED RADIATION
PHOTOIONIZATION
POLARIZATION
RADIATIONS
STARS
STELLAR RADIATION
VISIBLE RADIATION
WHITE DWARF STARS