IMAGING POLARIMETRY OF HIGH-REDSHIFT RADIO GALAXIES

被引：44

作者：

ALIGHIERI, SD

CIMATTI, A

FOSBURY, RAE

机构：

[1] UNIV FLORENCE, DIPARTIMENTO ASTRON, I-50125 FLORENCE, ITALY

[2] EUROPEAN COORDINATING FACIL, W-8046 GARCHING, GERMANY

[3] EUROPEAN SO OBSERV, LA SILLA, CHILE

[4] EUROPEAN SPACE AGCY, DEPT SPACE SCI, DIV ASTROPHYS, F-75738 PARIS 15, FRANCE

来源：

ASTROPHYSICAL JOURNAL | 1993年 / 404卷 / 02期

关键词：

GALAXIES; ISM; POLARIZATION; RADIO CONTINUUM;

D O I：

10.1086/172311

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We present the results of imaging polarimetry of six high-redshift radio galaxies. Four of them show high linear polarization in their rest frame ultraviolet radiation around 3000 angstrom with the E vector perpendicular to the radio/optical axis. In the only galaxy which is well resolved, the polarization is stronger in the extended structure than in the nuclear regions. These results are evidence for a significant nonstellar extended component in the ultraviolet band and are well explained by the hypothesis that this component is nuclear light which is emitted anisotropically and is scattered into our line of sight by the interstellar medium of the host galaxy.

引用

页码：584 / 592

页数：9

共 57 条

[1] POLARIZED-LIGHT IN HIGH-REDSHIFT RADIO GALAXIES [J].