Radio Polarization of BL Lacertae Objects | Zendy

J. H. Fan | Zendy; Tong-Xu Hua | Zendy; Yu-Hai Yuan | Zendy; Yongxiang Wang | Zendy; Yi Liu | Zendy; Jiang-Bo Su | Zendy; YongWei Zhang | Zendy; J. H. Yang | Zendy; Yong Huang | Zendy

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Radio Polarization of BL Lacertae Objects

Author(s) -

J. H. Fan,

Tong-Xu Hua,

Yu-Hai Yuan,

Yongxiang Wang,

Yi Liu,

Jiang-Bo Su,

YongWei Zhang,

J. H. Yang,

Yong Huang

Publication year - 2006

Publication title -

publications of the astronomical society of japan

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.99

H-Index - 110

eISSN - 2053-051X

pISSN - 0004-6264

DOI - 10.1093/pasj/58.6.945

Subject(s) - physics , bl lac object , polarization (electrochemistry) , astrophysics , spectral index , observatory , radio spectrum , radio frequency , radio galaxy , astronomy , circular polarization , radio astronomy , blazar , galaxy , spectral line , optics , gamma ray , telecommunications , microstrip , chemistry , computer science

In this paper, using the database of the university of Michigan RadioAstronomy Observatory (UMRAO) at three (4.8 GHz, 8 GHZ, and 14.5 GHz) radiofrequencies, we studied the polarization properties for 47 BL Lacertaeobjects(38 radio selected BL Lacertae objects, 7 X-ray selected BL Lacertae,and two inter-middle objects (Mkn 421 and Mkn 501), and found that (1) Thepolarizations at higher radio frequency is higher than those at lowerfrequency, (2) The variability of polarization at higher radio frequency ishigher than those at lower frequency, (3) The polarization is correlated withthe radio spectral index, and (4) The polarization is correlated withcore-dominance parameter for those objects with known core-dominance parameterssuggesting that the relativistic beaming could explain the polarizationcharacteristic of BL Lacs.Comment: 5 pages, 3 figures, 1 table. PASJ, in pres

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