首页> 外文期刊>The Astrophysical journal >THE NATURE OF SEYFERT 2 GALAXIES WITH OBSCURED BROAD-LINE REGIONS. II. INDIVIDUAL OBJECTS
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THE NATURE OF SEYFERT 2 GALAXIES WITH OBSCURED BROAD-LINE REGIONS. II. INDIVIDUAL OBJECTS

机译:塞舌尔2星系的性质,这些星系具有盲区。二。个人对象

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摘要

We discuss the observational results (Paper Ⅰ) of a spectropolarimetric and imaging study of 10 Seyfert 2 galaxies which show permitted broad emission lines in their polarized flux spectra. We find that the corrected continuum polarizations display, in all galaxies but NGC 1068, a rise in the amount of polarization in the broad wings of Hβ and Hα, while the polarization position angle remains unchanged between the broad-line wings and adjacent continuum. In a majority of the objects, the polarization electric vectors are essentially perpendicular to the radio structure axis and/or the position angle of the extended ionization cones or jets. A variety of evidence suggests that electron scattering is the dominant mechanism responsible for the nuclear polarizations in almost all the galaxies in the sample, although an additional contribution from dust scattering and/or transmission is likely in some objects.
机译:我们讨论了10个Seyfert 2星系的光谱偏振和成像研究的观测结果(论文Ⅰ),这些星系在其偏振通量谱中显示了允许的宽发射线。我们发现,在除NGC 1068以外的所有星系中,校正后的连续谱极化显示在Hβ和Hα的宽翼中的极化量增加,而在宽线翅和相邻的连续谱之间,极化位置角保持不变。在大多数物体中,极化电矢量基本上垂直于无线电结构轴和/或扩展的电离锥或射流的位置角。各种各样的证据表明,电子散射是样品中几乎所有星系中核极化的主要机制,尽管在某些物体中可能由尘埃散射和/或透射产生了额外的贡献。

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