Reference : The optical polarization of radio-loud and radio-intermediate broad absorption line q...
Scientific journals : Article
Physical, chemical, mathematical & earth Sciences : Space science, astronomy & astrophysics
http://hdl.handle.net/2268/5332
The optical polarization of radio-loud and radio-intermediate broad absorption line quasi-stellar objects
English
Hutsemekers, Damien mailto [Université de Liège - ULg > Département d'astrophys., géophysique et océanographie (AGO) > Astroph. extragalactique et observations spatiales (AEOS) >]
Lamy, H. [Institut d'Astrophysique, Université de Liège, 5 av. de Cointe, 4000 Liège, Belgium]
1-Jun-2000
Astronomy and Astrophysics
EDP Sciences
358
835-840
Yes (verified by ORBi)
International
0004-6361
1432-0746
Les Ulis
France
[en] GALAXIES: QUASARS: ABSORPTION LINES ; GALAXIES: QUASARS: GENERAL ; POLARIZATION
[en] On the basis of a sample of approximately 50 broad absorption line quasi-stellar objects (BAL QSOs), we investigate possible correlations between BAL QSO radio properties and other spectral characteristics, including polarization. For this purpose new polarization data have been obtained. The main result of our statistical study is the absence of significant correlations between the radio-to-optical flux ratio R[SUP]star [/SUP] and all other quantities: the polarization p_0 of the continuum, the slope of the continuum, the balnicity and detachment indices which characterize the BAL profiles, and the terminal velocity of the flow v_max. The claimed anticorrelation between R[SUP]star [/SUP] and v_max is therefore not confirmed, as well as the correlation between R[SUP]star [/SUP] and p_0 predicted by some models. Although marginally significant, the only possible correlations occur for the BAL QSOs with low-ionization troughs. Based on observations collected at the European Southern Observatory (ESO, La Silla)
http://hdl.handle.net/2268/5332
http://adsabs.harvard.edu/abs/2000A%26A...358..835H
The authors thank EDP Sciences and NASA ADS for their deposit authorization

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