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J.J. Schaefer, M.S. Brotherton (University of Wyoming)
FR II BALQSOs may be an even rarer form of quasar than has been previously suggested. These Broad Absorption Line Quasi-Stellar Objects (BALQSOs) are extremely radio luminous and display classic large-scale double-lobed radio structures (FR II morphology). Previous samples of BALQSOs have shown very few significant radio detections, much less exhibit such an extreme radio morphology. The radio morphology, as well as the BAL regions intrinsic to this type of quasar suggest that these objects are at an early stage in quasar development (Gregg et al. 2000). However due to the limited sample size of previous surveys only two FR II BALQSOs have been found and published in the literature. In order to expand the sample size we conducted an archival search through the first Data Release (DR1)of the Sloan Digital Sky Survey (SDSS). This produced three new candidate FR II BALQSOs from a population of 1026 quasars with FIRST (Faint Images of the Radio Sky at Twenty-centimeters) counterparts. More recently we searched the entire second Data Release (DR2) of the SDSS and determined that although our sample size had doubled, (2243 objects with FIRST counterparts), no new FR II BALQSO candidates were found. We discuss the implications and make a multi-wavelength statistical comparison of the FR II BALQSO candidates with other sample quasar populations. We present a catalog comprised of the radio, and optical/UV absorption-line properties of these candidate FR II BALQSOs.
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Bulletin of the American Astronomical Society, 36 #2
© YEAR. The American Astronomical Soceity.