Gravitational Lenses in the 6dF GS
Detection statistics
- galaxies + magnified QSOs preferentially selected in flux-limited galaxy surveys
- but QSO counts drop rapidly at brighter limits
- 2dF GRS (2.5 105) ? ~10 lensed galaxies
- SDSS (106) ? ~100 lensed galaxies
- (Mortlock & Webster 2000)
- 6dF (105) ? ~1 lensed galaxies
- but ~10 if QSOs as red as B-K=8
- (Mortlock & Drinkwater 2001)