X-rays from Broad Absorption Line Quasars with Extreme Properties

We propose observations of three LowIonization Broad Absorption Line (LoBAL)Quasars with unusual properties. UN J11410143 is the most radioloud LoBALquasar known, and only the second classical radio double BAL quasar known.SDSS 0300+0048 has LoBAL troughs spanning at least 13000 km/s with localcovering factor 50100%, so that 90% of the restframe UV flux blueward of Mg IIis absorbed. Nonetheless, its BAL gas column density may be the same as in lessextreme LoBAL quasars; Xray observations are needed to test this possibility.SDSS 22150045 is a unique bright LoBAL quasar with stronger absorption fromFe III than from Fe II. The reasons for its unique UV spectrum are unknown;Xray observations will narrow the list of possibilities. truncated!, Please see actual data for full text [truncated!, Please see actual data for full text]