The 2dF QSO Redshift Survey - X. Lensing of Background QSOs by Galaxy Groups
We cross-correlate QSOs from the 2dF Survey with galaxy groups. The galaxy samples are limited to B < 20.5. We use an objective algorithm to detect galaxy groups. A 3sigma anti-correlation is observed between QSOs and galaxy groups. This paucity of faint QSOs around groups is neither a select...
| Hlavní autoři: | , , , , , , , |
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| Médium: | Journal article |
| Jazyk: | English |
| Vydáno: |
2002
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