Reference : Spectropolarimetry of the iron low ionization broad absorption line quasar Q 0059-2735
Scientific journals : Article
Physical, chemical, mathematical & earth Sciences : Space science, astronomy & astrophysics
http://hdl.handle.net/2268/5328
Spectropolarimetry of the iron low ionization broad absorption line quasar Q 0059-2735
English
Lamy, H. [Université de Liège, Institut d'Astrophysique et de Géophysique, 5, Avenue de Cointe, 4000 Liège, Belgium]
Hutsemekers, Damien mailto [Université de Liège - ULg > Département d'astrophys., géophysique et océanographie (AGO) > Astroph. extragalactique et observations spatiales (AEOS) >]
1-Apr-2000
Astronomy and Astrophysics
EDP Sciences
356
Letters
9-12
Yes (verified by ORBi)
International
0004-6361
1432-0746
Les Ulis
France
[en] GALAXIES: QUASARS: ABSORPTION LINES ; GALAXIES: QUASARS: INDIVIDUAL: ; POLARIZATION
[en] We present optical (ultraviolet rest-frame) spectropolarimetric observations of the rare iron low ionization broad absorption line (BAL) QSO Q 0059-2735. The continuum polarization increases to the blue with a regular rotation of the polarization position angle, suggesting that at least two mechanisms are at the origin of the polarization. There is also some evidence for dilution by a ion {Fe}{ii} pseudo-continuum in emission. In the broad absorption lines, the polarization strongly rises, with the largest values ever reported. On the contrary, the ion {Fe}{ii} blends in absorption are not more polarized than the continuum, while they are clearly visible in the polarized flux. These different polarization properties of ion {Fe}{ii} absorption lines suggest a different origin and/or geometry. The observed properties of Q 0059-2735 are consistent with a hybrid QSO / starburst model. Based on observations collected at the European Southern Observatory, La Silla, Chile
http://hdl.handle.net/2268/5328
http://adsabs.harvard.edu/abs/2000A%26A...356L...9L
The authors thank EDP Sciences and NASA ADS for their deposit authorization

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